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include: import Xen public headers to hw/xen/interface

Browse Source 
There's already a partial set here; update them and pull in a more
complete set.

To start with, define __XEN_TOOLS__ in hw/xen/xen.h to ensure that any
internal definitions needed by Xen toolstack libraries are present
regardless of the order in which the headers are included. A reckoning
will come later, once we make the PV backends work in emulation and
untangle the headers for Xen-native vs. generic parts.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
[dwmw2: Update to Xen public headers from 4.16.2 release, add some in io/,
        define __XEN_TOOLS__ in hw/xen/xen.h, move to hw/xen/interface/]
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Paul Durrant <paul@xen.org>
This commit is contained in:
Joao Martins 2019-02-13 12:29:47 -05:00 committed by David Woodhouse
parent 6276340310
commit 50c88402ca
28 changed files with 7134 additions and 136 deletions
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510
include/hw/xen/interface/arch-arm.h Normal file
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/******************************************************************************
* arch-arm.h
*
* Guest OS interface to ARM Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright 2011 (C) Citrix Systems
*/
#ifndef __XEN_PUBLIC_ARCH_ARM_H__
#define __XEN_PUBLIC_ARCH_ARM_H__
/*
* `incontents 50 arm_abi Hypercall Calling Convention
*
* A hypercall is issued using the ARM HVC instruction.
*
* A hypercall can take up to 5 arguments. These are passed in
* registers, the first argument in x0/r0 (for arm64/arm32 guests
* respectively irrespective of whether the underlying hypervisor is
* 32- or 64-bit), the second argument in x1/r1, the third in x2/r2,
* the forth in x3/r3 and the fifth in x4/r4.
*
* The hypercall number is passed in r12 (arm) or x16 (arm64). In both
* cases the relevant ARM procedure calling convention specifies this
* is an inter-procedure-call scratch register (e.g. for use in linker
* stubs). This use does not conflict with use during a hypercall.
*
* The HVC ISS must contain a Xen specific TAG: XEN_HYPERCALL_TAG.
*
* The return value is in x0/r0.
*
* The hypercall will clobber x16/r12 and the argument registers used
* by that hypercall (except r0 which is the return value) i.e. in
* addition to x16/r12 a 2 argument hypercall will clobber x1/r1 and a
* 4 argument hypercall will clobber x1/r1, x2/r2 and x3/r3.
*
* Parameter structs passed to hypercalls are laid out according to
* the Procedure Call Standard for the ARM Architecture (AAPCS, AKA
* EABI) and Procedure Call Standard for the ARM 64-bit Architecture
* (AAPCS64). Where there is a conflict the 64-bit standard should be
* used regardless of guest type. Structures which are passed as
* hypercall arguments are always little endian.
*
* All memory which is shared with other entities in the system
* (including the hypervisor and other guests) must reside in memory
* which is mapped as Normal Inner Write-Back Outer Write-Back Inner-Shareable.
* This applies to:
* - hypercall arguments passed via a pointer to guest memory.
* - memory shared via the grant table mechanism (including PV I/O
* rings etc).
* - memory shared with the hypervisor (struct shared_info, struct
* vcpu_info, the grant table, etc).
*
* Any cache allocation hints are acceptable.
*/
/*
* `incontents 55 arm_hcall Supported Hypercalls
*
* Xen on ARM makes extensive use of hardware facilities and therefore
* only a subset of the potential hypercalls are required.
*
* Since ARM uses second stage paging any machine/physical addresses
* passed to hypercalls are Guest Physical Addresses (Intermediate
* Physical Addresses) unless otherwise noted.
*
* The following hypercalls (and sub operations) are supported on the
* ARM platform. Other hypercalls should be considered
* unavailable/unsupported.
*
* HYPERVISOR_memory_op
* All generic sub-operations
*
* HYPERVISOR_domctl
* All generic sub-operations, with the exception of:
* * XEN_DOMCTL_irq_permission (not yet implemented)
*
* HYPERVISOR_sched_op
* All generic sub-operations, with the exception of:
* * SCHEDOP_block -- prefer wfi hardware instruction
*
* HYPERVISOR_console_io
* All generic sub-operations
*
* HYPERVISOR_xen_version
* All generic sub-operations
*
* HYPERVISOR_event_channel_op
* All generic sub-operations
*
* HYPERVISOR_physdev_op
* Exactly these sub-operations are supported:
* PHYSDEVOP_pci_device_add
* PHYSDEVOP_pci_device_remove
*
* HYPERVISOR_sysctl
* All generic sub-operations, with the exception of:
* * XEN_SYSCTL_page_offline_op
* * XEN_SYSCTL_get_pmstat
* * XEN_SYSCTL_pm_op
*
* HYPERVISOR_hvm_op
* Exactly these sub-operations are supported:
* * HVMOP_set_param
* * HVMOP_get_param
*
* HYPERVISOR_grant_table_op
* All generic sub-operations
*
* HYPERVISOR_vcpu_op
* Exactly these sub-operations are supported:
* * VCPUOP_register_vcpu_info
* * VCPUOP_register_runstate_memory_area
*
* HYPERVISOR_argo_op
* All generic sub-operations
*
* Other notes on the ARM ABI:
*
* - struct start_info is not exported to ARM guests.
*
* - struct shared_info is mapped by ARM guests using the
* HYPERVISOR_memory_op sub-op XENMEM_add_to_physmap, passing
* XENMAPSPACE_shared_info as space parameter.
*
* - All the per-cpu struct vcpu_info are mapped by ARM guests using the
* HYPERVISOR_vcpu_op sub-op VCPUOP_register_vcpu_info, including cpu0
* struct vcpu_info.
*
* - The grant table is mapped using the HYPERVISOR_memory_op sub-op
* XENMEM_add_to_physmap, passing XENMAPSPACE_grant_table as space
* parameter. The memory range specified under the Xen compatible
* hypervisor node on device tree can be used as target gpfn for the
* mapping.
*
* - Xenstore is initialized by using the two hvm_params
* HVM_PARAM_STORE_PFN and HVM_PARAM_STORE_EVTCHN. They can be read
* with the HYPERVISOR_hvm_op sub-op HVMOP_get_param.
*
* - The paravirtualized console is initialized by using the two
* hvm_params HVM_PARAM_CONSOLE_PFN and HVM_PARAM_CONSOLE_EVTCHN. They
* can be read with the HYPERVISOR_hvm_op sub-op HVMOP_get_param.
*
* - Event channel notifications are delivered using the percpu GIC
* interrupt specified under the Xen compatible hypervisor node on
* device tree.
*
* - The device tree Xen compatible node is fully described under Linux
* at Documentation/devicetree/bindings/arm/xen.txt.
*/
#define XEN_HYPERCALL_TAG 0XEA1
#define int64_aligned_t int64_t __attribute__((aligned(8)))
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
#ifndef __ASSEMBLY__
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef union { type *p; unsigned long q; } \
__guest_handle_ ## name; \
typedef union { type *p; uint64_aligned_t q; } \
__guest_handle_64_ ## name
/*
* XEN_GUEST_HANDLE represents a guest pointer, when passed as a field
* in a struct in memory. On ARM is always 8 bytes sizes and 8 bytes
* aligned.
* XEN_GUEST_HANDLE_PARAM represents a guest pointer, when passed as an
* hypercall argument. It is 4 bytes on aarch32 and 8 bytes on aarch64.
*/
#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
___DEFINE_XEN_GUEST_HANDLE(name, type); \
___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
#define __XEN_GUEST_HANDLE(name) __guest_handle_64_ ## name
#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)
#define XEN_GUEST_HANDLE_PARAM(name) __guest_handle_ ## name
#define set_xen_guest_handle_raw(hnd, val) \
do { \
__typeof__(&(hnd)) _sxghr_tmp = &(hnd); \
_sxghr_tmp->q = 0; \
_sxghr_tmp->p = val; \
} while ( 0 )
#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)
typedef uint64_t xen_pfn_t;
#define PRI_xen_pfn PRIx64
#define PRIu_xen_pfn PRIu64
/*
* Maximum number of virtual CPUs in legacy multi-processor guests.
* Only one. All other VCPUS must use VCPUOP_register_vcpu_info.
*/
#define XEN_LEGACY_MAX_VCPUS 1
typedef uint64_t xen_ulong_t;
#define PRI_xen_ulong PRIx64
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
/* Anonymous union includes both 32- and 64-bit names (e.g., r0/x0). */
# define __DECL_REG(n64, n32) union { \
uint64_t n64; \
uint32_t n32; \
}
#else
/* Non-gcc sources must always use the proper 64-bit name (e.g., x0). */
#define __DECL_REG(n64, n32) uint64_t n64
#endif
struct vcpu_guest_core_regs
{
/* Aarch64 Aarch32 */
__DECL_REG(x0, r0_usr);
__DECL_REG(x1, r1_usr);
__DECL_REG(x2, r2_usr);
__DECL_REG(x3, r3_usr);
__DECL_REG(x4, r4_usr);
__DECL_REG(x5, r5_usr);
__DECL_REG(x6, r6_usr);
__DECL_REG(x7, r7_usr);
__DECL_REG(x8, r8_usr);
__DECL_REG(x9, r9_usr);
__DECL_REG(x10, r10_usr);
__DECL_REG(x11, r11_usr);
__DECL_REG(x12, r12_usr);
__DECL_REG(x13, sp_usr);
__DECL_REG(x14, lr_usr);
__DECL_REG(x15, __unused_sp_hyp);
__DECL_REG(x16, lr_irq);
__DECL_REG(x17, sp_irq);
__DECL_REG(x18, lr_svc);
__DECL_REG(x19, sp_svc);
__DECL_REG(x20, lr_abt);
__DECL_REG(x21, sp_abt);
__DECL_REG(x22, lr_und);
__DECL_REG(x23, sp_und);
__DECL_REG(x24, r8_fiq);
__DECL_REG(x25, r9_fiq);
__DECL_REG(x26, r10_fiq);
__DECL_REG(x27, r11_fiq);
__DECL_REG(x28, r12_fiq);
__DECL_REG(x29, sp_fiq);
__DECL_REG(x30, lr_fiq);
/* Return address and mode */
__DECL_REG(pc64, pc32); /* ELR_EL2 */
uint64_t cpsr; /* SPSR_EL2 */
union {
uint64_t spsr_el1; /* AArch64 */
uint32_t spsr_svc; /* AArch32 */
};
/* AArch32 guests only */
uint32_t spsr_fiq, spsr_irq, spsr_und, spsr_abt;
/* AArch64 guests only */
uint64_t sp_el0;
uint64_t sp_el1, elr_el1;
};
typedef struct vcpu_guest_core_regs vcpu_guest_core_regs_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_core_regs_t);
#undef __DECL_REG
struct vcpu_guest_context {
#define _VGCF_online 0
#define VGCF_online (1<<_VGCF_online)
uint32_t flags; /* VGCF_* */
struct vcpu_guest_core_regs user_regs; /* Core CPU registers */
uint64_t sctlr;
uint64_t ttbcr, ttbr0, ttbr1;
};
typedef struct vcpu_guest_context vcpu_guest_context_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
/*
* struct xen_arch_domainconfig's ABI is covered by
* XEN_DOMCTL_INTERFACE_VERSION.
*/
#define XEN_DOMCTL_CONFIG_GIC_NATIVE 0
#define XEN_DOMCTL_CONFIG_GIC_V2 1
#define XEN_DOMCTL_CONFIG_GIC_V3 2
#define XEN_DOMCTL_CONFIG_TEE_NONE 0
#define XEN_DOMCTL_CONFIG_TEE_OPTEE 1
struct xen_arch_domainconfig {
/* IN/OUT */
uint8_t gic_version;
/* IN */
uint16_t tee_type;
/* IN */
uint32_t nr_spis;
/*
* OUT
* Based on the property clock-frequency in the DT timer node.
* The property may be present when the bootloader/firmware doesn't
* set correctly CNTFRQ which hold the timer frequency.
*
* As it's not possible to trap this register, we have to replicate
* the value in the guest DT.
*
* = 0 => property not present
* > 0 => Value of the property
*
*/
uint32_t clock_frequency;
};
#endif /* __XEN__ || __XEN_TOOLS__ */
struct arch_vcpu_info {
};
typedef struct arch_vcpu_info arch_vcpu_info_t;
struct arch_shared_info {
};
typedef struct arch_shared_info arch_shared_info_t;
typedef uint64_t xen_callback_t;
#endif
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* PSR bits (CPSR, SPSR) */
#define PSR_THUMB (1<<5) /* Thumb Mode enable */
#define PSR_FIQ_MASK (1<<6) /* Fast Interrupt mask */
#define PSR_IRQ_MASK (1<<7) /* Interrupt mask */
#define PSR_ABT_MASK (1<<8) /* Asynchronous Abort mask */
#define PSR_BIG_ENDIAN (1<<9) /* arm32: Big Endian Mode */
#define PSR_DBG_MASK (1<<9) /* arm64: Debug Exception mask */
#define PSR_IT_MASK (0x0600fc00) /* Thumb If-Then Mask */
#define PSR_JAZELLE (1<<24) /* Jazelle Mode */
/* 32 bit modes */
#define PSR_MODE_USR 0x10
#define PSR_MODE_FIQ 0x11
#define PSR_MODE_IRQ 0x12
#define PSR_MODE_SVC 0x13
#define PSR_MODE_MON 0x16
#define PSR_MODE_ABT 0x17
#define PSR_MODE_HYP 0x1a
#define PSR_MODE_UND 0x1b
#define PSR_MODE_SYS 0x1f
/* 64 bit modes */
#define PSR_MODE_BIT 0x10 /* Set iff AArch32 */
#define PSR_MODE_EL3h 0x0d
#define PSR_MODE_EL3t 0x0c
#define PSR_MODE_EL2h 0x09
#define PSR_MODE_EL2t 0x08
#define PSR_MODE_EL1h 0x05
#define PSR_MODE_EL1t 0x04
#define PSR_MODE_EL0t 0x00
#define PSR_GUEST32_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_SVC)
#define PSR_GUEST64_INIT (PSR_ABT_MASK|PSR_FIQ_MASK|PSR_IRQ_MASK|PSR_MODE_EL1h)
#define SCTLR_GUEST_INIT xen_mk_ullong(0x00c50078)
/*
* Virtual machine platform (memory layout, interrupts)
*
* These are defined for consistency between the tools and the
* hypervisor. Guests must not rely on these hardcoded values but
* should instead use the FDT.
*/
/* Physical Address Space */
/*
* vGIC mappings: Only one set of mapping is used by the guest.
* Therefore they can overlap.
*/
/* vGIC v2 mappings */
#define GUEST_GICD_BASE xen_mk_ullong(0x03001000)
#define GUEST_GICD_SIZE xen_mk_ullong(0x00001000)
#define GUEST_GICC_BASE xen_mk_ullong(0x03002000)
#define GUEST_GICC_SIZE xen_mk_ullong(0x00002000)
/* vGIC v3 mappings */
#define GUEST_GICV3_GICD_BASE xen_mk_ullong(0x03001000)
#define GUEST_GICV3_GICD_SIZE xen_mk_ullong(0x00010000)
#define GUEST_GICV3_RDIST_REGIONS 1
#define GUEST_GICV3_GICR0_BASE xen_mk_ullong(0x03020000) /* vCPU0..127 */
#define GUEST_GICV3_GICR0_SIZE xen_mk_ullong(0x01000000)
/*
* 256 MB is reserved for VPCI configuration space based on calculation
* 256 buses x 32 devices x 8 functions x 4 KB = 256 MB
*/
#define GUEST_VPCI_ECAM_BASE xen_mk_ullong(0x10000000)
#define GUEST_VPCI_ECAM_SIZE xen_mk_ullong(0x10000000)
/* ACPI tables physical address */
#define GUEST_ACPI_BASE xen_mk_ullong(0x20000000)
#define GUEST_ACPI_SIZE xen_mk_ullong(0x02000000)
/* PL011 mappings */
#define GUEST_PL011_BASE xen_mk_ullong(0x22000000)
#define GUEST_PL011_SIZE xen_mk_ullong(0x00001000)
/* Guest PCI-PCIe memory space where config space and BAR will be available.*/
#define GUEST_VPCI_ADDR_TYPE_MEM xen_mk_ullong(0x02000000)
#define GUEST_VPCI_MEM_ADDR xen_mk_ullong(0x23000000)
#define GUEST_VPCI_MEM_SIZE xen_mk_ullong(0x10000000)
/*
* 16MB == 4096 pages reserved for guest to use as a region to map its
* grant table in.
*/
#define GUEST_GNTTAB_BASE xen_mk_ullong(0x38000000)
#define GUEST_GNTTAB_SIZE xen_mk_ullong(0x01000000)
#define GUEST_MAGIC_BASE xen_mk_ullong(0x39000000)
#define GUEST_MAGIC_SIZE xen_mk_ullong(0x01000000)
#define GUEST_RAM_BANKS 2
/*
* The way to find the extended regions (to be exposed to the guest as unused
* address space) relies on the fact that the regions reserved for the RAM
* below are big enough to also accommodate such regions.
*/
#define GUEST_RAM0_BASE xen_mk_ullong(0x40000000) /* 3GB of low RAM @ 1GB */
#define GUEST_RAM0_SIZE xen_mk_ullong(0xc0000000)
/* 4GB @ 4GB Prefetch Memory for VPCI */
#define GUEST_VPCI_ADDR_TYPE_PREFETCH_MEM xen_mk_ullong(0x42000000)
#define GUEST_VPCI_PREFETCH_MEM_ADDR xen_mk_ullong(0x100000000)
#define GUEST_VPCI_PREFETCH_MEM_SIZE xen_mk_ullong(0x100000000)
#define GUEST_RAM1_BASE xen_mk_ullong(0x0200000000) /* 1016GB of RAM @ 8GB */
#define GUEST_RAM1_SIZE xen_mk_ullong(0xfe00000000)
#define GUEST_RAM_BASE GUEST_RAM0_BASE /* Lowest RAM address */
/* Largest amount of actual RAM, not including holes */
#define GUEST_RAM_MAX (GUEST_RAM0_SIZE + GUEST_RAM1_SIZE)
/* Suitable for e.g. const uint64_t ramfoo[] = GUEST_RAM_BANK_FOOS; */
#define GUEST_RAM_BANK_BASES { GUEST_RAM0_BASE, GUEST_RAM1_BASE }
#define GUEST_RAM_BANK_SIZES { GUEST_RAM0_SIZE, GUEST_RAM1_SIZE }
/* Current supported guest VCPUs */
#define GUEST_MAX_VCPUS 128
/* Interrupts */
#define GUEST_TIMER_VIRT_PPI 27
#define GUEST_TIMER_PHYS_S_PPI 29
#define GUEST_TIMER_PHYS_NS_PPI 30
#define GUEST_EVTCHN_PPI 31
#define GUEST_VPL011_SPI 32
/* PSCI functions */
#define PSCI_cpu_suspend 0
#define PSCI_cpu_off 1
#define PSCI_cpu_on 2
#define PSCI_migrate 3
#endif
#ifndef __ASSEMBLY__
/* Stub definition of PMU structure */
typedef struct xen_pmu_arch { uint8_t dummy; } xen_pmu_arch_t;
#endif
#endif /* __XEN_PUBLIC_ARCH_ARM_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* arch-x86/cpuid.h
*
* CPUID interface to Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2007 Citrix Systems, Inc.
*
* Authors:
* Keir Fraser <keir@xen.org>
*/
#ifndef __XEN_PUBLIC_ARCH_X86_CPUID_H__
#define __XEN_PUBLIC_ARCH_X86_CPUID_H__
/*
* For compatibility with other hypervisor interfaces, the Xen cpuid leaves
* can be found at the first otherwise unused 0x100 aligned boundary starting
* from 0x40000000.
*
* e.g If viridian extensions are enabled for an HVM domain, the Xen cpuid
* leaves will start at 0x40000100
*/
#define XEN_CPUID_FIRST_LEAF 0x40000000
#define XEN_CPUID_LEAF(i) (XEN_CPUID_FIRST_LEAF + (i))
/*
* Leaf 1 (0x40000x00)
* EAX: Largest Xen-information leaf. All leaves up to an including @EAX
* are supported by the Xen host.
* EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification
* of a Xen host.
*/
#define XEN_CPUID_SIGNATURE_EBX 0x566e6558 /* "XenV" */
#define XEN_CPUID_SIGNATURE_ECX 0x65584d4d /* "MMXe" */
#define XEN_CPUID_SIGNATURE_EDX 0x4d4d566e /* "nVMM" */
/*
* Leaf 2 (0x40000x01)
* EAX[31:16]: Xen major version.
* EAX[15: 0]: Xen minor version.
* EBX-EDX: Reserved (currently all zeroes).
*/
/*
* Leaf 3 (0x40000x02)
* EAX: Number of hypercall transfer pages. This register is always guaranteed
* to specify one hypercall page.
* EBX: Base address of Xen-specific MSRs.
* ECX: Features 1. Unused bits are set to zero.
* EDX: Features 2. Unused bits are set to zero.
*/
/* Does the host support MMU_PT_UPDATE_PRESERVE_AD for this guest? */
#define _XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD 0
#define XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD (1u<<0)
/*
* Leaf 4 (0x40000x03)
* Sub-leaf 0: EAX: bit 0: emulated tsc
* bit 1: host tsc is known to be reliable
* bit 2: RDTSCP instruction available
* EBX: tsc_mode: 0=default (emulate if necessary), 1=emulate,
* 2=no emulation, 3=no emulation + TSC_AUX support
* ECX: guest tsc frequency in kHz
* EDX: guest tsc incarnation (migration count)
* Sub-leaf 1: EAX: tsc offset low part
* EBX: tsc offset high part
* ECX: multiplicator for tsc->ns conversion
* EDX: shift amount for tsc->ns conversion
* Sub-leaf 2: EAX: host tsc frequency in kHz
*/
/*
* Leaf 5 (0x40000x04)
* HVM-specific features
* Sub-leaf 0: EAX: Features
* Sub-leaf 0: EBX: vcpu id (iff EAX has XEN_HVM_CPUID_VCPU_ID_PRESENT flag)
* Sub-leaf 0: ECX: domain id (iff EAX has XEN_HVM_CPUID_DOMID_PRESENT flag)
*/
#define XEN_HVM_CPUID_APIC_ACCESS_VIRT (1u << 0) /* Virtualized APIC registers */
#define XEN_HVM_CPUID_X2APIC_VIRT (1u << 1) /* Virtualized x2APIC accesses */
/* Memory mapped from other domains has valid IOMMU entries */
#define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2)
#define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */
#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */
/*
* Leaf 6 (0x40000x05)
* PV-specific parameters
* Sub-leaf 0: EAX: max available sub-leaf
* Sub-leaf 0: EBX: bits 0-7: max machine address width
*/
/* Max. address width in bits taking memory hotplug into account. */
#define XEN_CPUID_MACHINE_ADDRESS_WIDTH_MASK (0xffu << 0)
#define XEN_CPUID_MAX_NUM_LEAVES 5
#endif /* __XEN_PUBLIC_ARCH_X86_CPUID_H__ */

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/******************************************************************************
* xen-x86_32.h
*
* Guest OS interface to x86 32-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2007, K A Fraser
*/
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__
/*
* Hypercall interface:
* Input: %ebx, %ecx, %edx, %esi, %edi, %ebp (arguments 1-6)
* Output: %eax
* Access is via hypercall page (set up by guest loader or via a Xen MSR):
* call hypercall_page + hypercall-number * 32
* Clobbered: Argument registers (e.g., 2-arg hypercall clobbers %ebx,%ecx)
*/
/*
* These flat segments are in the Xen-private section of every GDT. Since these
* are also present in the initial GDT, many OSes will be able to avoid
* installing their own GDT.
*/
#define FLAT_RING1_CS 0xe019 /* GDT index 259 */
#define FLAT_RING1_DS 0xe021 /* GDT index 260 */
#define FLAT_RING1_SS 0xe021 /* GDT index 260 */
#define FLAT_RING3_CS 0xe02b /* GDT index 261 */
#define FLAT_RING3_DS 0xe033 /* GDT index 262 */
#define FLAT_RING3_SS 0xe033 /* GDT index 262 */
#define FLAT_KERNEL_CS FLAT_RING1_CS
#define FLAT_KERNEL_DS FLAT_RING1_DS
#define FLAT_KERNEL_SS FLAT_RING1_SS
#define FLAT_USER_CS FLAT_RING3_CS
#define FLAT_USER_DS FLAT_RING3_DS
#define FLAT_USER_SS FLAT_RING3_SS
#define __HYPERVISOR_VIRT_START_PAE 0xF5800000
#define __MACH2PHYS_VIRT_START_PAE 0xF5800000
#define __MACH2PHYS_VIRT_END_PAE 0xF6800000
#define HYPERVISOR_VIRT_START_PAE xen_mk_ulong(__HYPERVISOR_VIRT_START_PAE)
#define MACH2PHYS_VIRT_START_PAE xen_mk_ulong(__MACH2PHYS_VIRT_START_PAE)
#define MACH2PHYS_VIRT_END_PAE xen_mk_ulong(__MACH2PHYS_VIRT_END_PAE)
/* Non-PAE bounds are obsolete. */
#define __HYPERVISOR_VIRT_START_NONPAE 0xFC000000
#define __MACH2PHYS_VIRT_START_NONPAE 0xFC000000
#define __MACH2PHYS_VIRT_END_NONPAE 0xFC400000
#define HYPERVISOR_VIRT_START_NONPAE \
xen_mk_ulong(__HYPERVISOR_VIRT_START_NONPAE)
#define MACH2PHYS_VIRT_START_NONPAE \
xen_mk_ulong(__MACH2PHYS_VIRT_START_NONPAE)
#define MACH2PHYS_VIRT_END_NONPAE \
xen_mk_ulong(__MACH2PHYS_VIRT_END_NONPAE)
#define __HYPERVISOR_VIRT_START __HYPERVISOR_VIRT_START_PAE
#define __MACH2PHYS_VIRT_START __MACH2PHYS_VIRT_START_PAE
#define __MACH2PHYS_VIRT_END __MACH2PHYS_VIRT_END_PAE
#ifndef HYPERVISOR_VIRT_START
#define HYPERVISOR_VIRT_START xen_mk_ulong(__HYPERVISOR_VIRT_START)
#endif
#define MACH2PHYS_VIRT_START xen_mk_ulong(__MACH2PHYS_VIRT_START)
#define MACH2PHYS_VIRT_END xen_mk_ulong(__MACH2PHYS_VIRT_END)
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>2)
#ifndef machine_to_phys_mapping
#define machine_to_phys_mapping ((unsigned long *)MACH2PHYS_VIRT_START)
#endif
/* 32-/64-bit invariability for control interfaces (domctl/sysctl). */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#undef ___DEFINE_XEN_GUEST_HANDLE
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef struct { type *p; } \
__guest_handle_ ## name; \
typedef struct { union { type *p; uint64_aligned_t q; }; } \
__guest_handle_64_ ## name
#undef set_xen_guest_handle_raw
#define set_xen_guest_handle_raw(hnd, val) \
do { if ( sizeof(hnd) == 8 ) *(uint64_t *)&(hnd) = 0; \
(hnd).p = val; \
} while ( 0 )
#define int64_aligned_t int64_t __attribute__((aligned(8)))
#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
#define __XEN_GUEST_HANDLE_64(name) __guest_handle_64_ ## name
#define XEN_GUEST_HANDLE_64(name) __XEN_GUEST_HANDLE_64(name)
#endif
#ifndef __ASSEMBLY__
#if defined(XEN_GENERATING_COMPAT_HEADERS)
/* nothing */
#elif defined(__XEN__) || defined(__XEN_TOOLS__)
/* Anonymous unions include all permissible names (e.g., al/ah/ax/eax). */
#define __DECL_REG_LO8(which) union { \
uint32_t e ## which ## x; \
uint16_t which ## x; \
struct { \
uint8_t which ## l; \
uint8_t which ## h; \
}; \
}
#define __DECL_REG_LO16(name) union { \
uint32_t e ## name, _e ## name; \
uint16_t name; \
}
#else
/* Other sources must always use the proper 32-bit name (e.g., eax). */
#define __DECL_REG_LO8(which) uint32_t e ## which ## x
#define __DECL_REG_LO16(name) uint32_t e ## name
#endif
struct cpu_user_regs {
__DECL_REG_LO8(b);
__DECL_REG_LO8(c);
__DECL_REG_LO8(d);
__DECL_REG_LO16(si);
__DECL_REG_LO16(di);
__DECL_REG_LO16(bp);
__DECL_REG_LO8(a);
uint16_t error_code; /* private */
uint16_t entry_vector; /* private */
__DECL_REG_LO16(ip);
uint16_t cs;
uint8_t saved_upcall_mask;
uint8_t _pad0;
__DECL_REG_LO16(flags); /* eflags.IF == !saved_upcall_mask */
__DECL_REG_LO16(sp);
uint16_t ss, _pad1;
uint16_t es, _pad2;
uint16_t ds, _pad3;
uint16_t fs, _pad4;
uint16_t gs, _pad5;
};
typedef struct cpu_user_regs cpu_user_regs_t;
DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t);
#undef __DECL_REG_LO8
#undef __DECL_REG_LO16
/*
* Page-directory addresses above 4GB do not fit into architectural %cr3.
* When accessing %cr3, or equivalent field in vcpu_guest_context, guests
* must use the following accessor macros to pack/unpack valid MFNs.
*/
#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20))
#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20))
struct arch_vcpu_info {
unsigned long cr2;
unsigned long pad[5]; /* sizeof(vcpu_info_t) == 64 */
};
typedef struct arch_vcpu_info arch_vcpu_info_t;
struct xen_callback {
unsigned long cs;
unsigned long eip;
};
typedef struct xen_callback xen_callback_t;
#endif /* !__ASSEMBLY__ */
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_32_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* xen-x86_64.h
*
* Guest OS interface to x86 64-bit Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__
/*
* Hypercall interface:
* Input: %rdi, %rsi, %rdx, %r10, %r8, %r9 (arguments 1-6)
* Output: %rax
* Access is via hypercall page (set up by guest loader or via a Xen MSR):
* call hypercall_page + hypercall-number * 32
* Clobbered: argument registers (e.g., 2-arg hypercall clobbers %rdi,%rsi)
*/
/*
* 64-bit segment selectors
* These flat segments are in the Xen-private section of every GDT. Since these
* are also present in the initial GDT, many OSes will be able to avoid
* installing their own GDT.
*/
#define FLAT_RING3_CS32 0xe023 /* GDT index 260 */
#define FLAT_RING3_CS64 0xe033 /* GDT index 262 */
#define FLAT_RING3_DS32 0xe02b /* GDT index 261 */
#define FLAT_RING3_DS64 0x0000 /* NULL selector */
#define FLAT_RING3_SS32 0xe02b /* GDT index 261 */
#define FLAT_RING3_SS64 0xe02b /* GDT index 261 */
#define FLAT_KERNEL_DS64 FLAT_RING3_DS64
#define FLAT_KERNEL_DS32 FLAT_RING3_DS32
#define FLAT_KERNEL_DS FLAT_KERNEL_DS64
#define FLAT_KERNEL_CS64 FLAT_RING3_CS64
#define FLAT_KERNEL_CS32 FLAT_RING3_CS32
#define FLAT_KERNEL_CS FLAT_KERNEL_CS64
#define FLAT_KERNEL_SS64 FLAT_RING3_SS64
#define FLAT_KERNEL_SS32 FLAT_RING3_SS32
#define FLAT_KERNEL_SS FLAT_KERNEL_SS64
#define FLAT_USER_DS64 FLAT_RING3_DS64
#define FLAT_USER_DS32 FLAT_RING3_DS32
#define FLAT_USER_DS FLAT_USER_DS64
#define FLAT_USER_CS64 FLAT_RING3_CS64
#define FLAT_USER_CS32 FLAT_RING3_CS32
#define FLAT_USER_CS FLAT_USER_CS64
#define FLAT_USER_SS64 FLAT_RING3_SS64
#define FLAT_USER_SS32 FLAT_RING3_SS32
#define FLAT_USER_SS FLAT_USER_SS64
#define __HYPERVISOR_VIRT_START 0xFFFF800000000000
#define __HYPERVISOR_VIRT_END 0xFFFF880000000000
#define __MACH2PHYS_VIRT_START 0xFFFF800000000000
#define __MACH2PHYS_VIRT_END 0xFFFF804000000000
#ifndef HYPERVISOR_VIRT_START
#define HYPERVISOR_VIRT_START xen_mk_ulong(__HYPERVISOR_VIRT_START)
#define HYPERVISOR_VIRT_END xen_mk_ulong(__HYPERVISOR_VIRT_END)
#endif
#define MACH2PHYS_VIRT_START xen_mk_ulong(__MACH2PHYS_VIRT_START)
#define MACH2PHYS_VIRT_END xen_mk_ulong(__MACH2PHYS_VIRT_END)
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>3)
#ifndef machine_to_phys_mapping
#define machine_to_phys_mapping ((unsigned long *)HYPERVISOR_VIRT_START)
#endif
/*
* int HYPERVISOR_set_segment_base(unsigned int which, unsigned long base)
* @which == SEGBASE_* ; @base == 64-bit base address
* Returns 0 on success.
*/
#define SEGBASE_FS 0
#define SEGBASE_GS_USER 1
#define SEGBASE_GS_KERNEL 2
#define SEGBASE_GS_USER_SEL 3 /* Set user %gs specified in base[15:0] */
/*
* int HYPERVISOR_iret(void)
* All arguments are on the kernel stack, in the following format.
* Never returns if successful. Current kernel context is lost.
* The saved CS is mapped as follows:
* RING0 -> RING3 kernel mode.
* RING1 -> RING3 kernel mode.
* RING2 -> RING3 kernel mode.
* RING3 -> RING3 user mode.
* However RING0 indicates that the guest kernel should return to iteself
* directly with
* orb $3,1*8(%rsp)
* iretq
* If flags contains VGCF_in_syscall:
* Restore RAX, RIP, RFLAGS, RSP.
* Discard R11, RCX, CS, SS.
* Otherwise:
* Restore RAX, R11, RCX, CS:RIP, RFLAGS, SS:RSP.
* All other registers are saved on hypercall entry and restored to user.
*/
/* Guest exited in SYSCALL context? Return to guest with SYSRET? */
#define _VGCF_in_syscall 8
#define VGCF_in_syscall (1<<_VGCF_in_syscall)
#define VGCF_IN_SYSCALL VGCF_in_syscall
#ifndef __ASSEMBLY__
struct iret_context {
/* Top of stack (%rsp at point of hypercall). */
uint64_t rax, r11, rcx, flags, rip, cs, rflags, rsp, ss;
/* Bottom of iret stack frame. */
};
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Anonymous unions include all permissible names (e.g., al/ah/ax/eax/rax). */
#define __DECL_REG_LOHI(which) union { \
uint64_t r ## which ## x; \
uint32_t e ## which ## x; \
uint16_t which ## x; \
struct { \
uint8_t which ## l; \
uint8_t which ## h; \
}; \
}
#define __DECL_REG_LO8(name) union { \
uint64_t r ## name; \
uint32_t e ## name; \
uint16_t name; \
uint8_t name ## l; \
}
#define __DECL_REG_LO16(name) union { \
uint64_t r ## name; \
uint32_t e ## name; \
uint16_t name; \
}
#define __DECL_REG_HI(num) union { \
uint64_t r ## num; \
uint32_t r ## num ## d; \
uint16_t r ## num ## w; \
uint8_t r ## num ## b; \
}
#elif defined(__GNUC__) && !defined(__STRICT_ANSI__)
/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */
#define __DECL_REG(name) union { \
uint64_t r ## name, e ## name; \
uint32_t _e ## name; \
}
#else
/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */
#define __DECL_REG(name) uint64_t r ## name
#endif
#ifndef __DECL_REG_LOHI
#define __DECL_REG_LOHI(name) __DECL_REG(name ## x)
#define __DECL_REG_LO8 __DECL_REG
#define __DECL_REG_LO16 __DECL_REG
#define __DECL_REG_HI(num) uint64_t r ## num
#endif
struct cpu_user_regs {
__DECL_REG_HI(15);
__DECL_REG_HI(14);
__DECL_REG_HI(13);
__DECL_REG_HI(12);
__DECL_REG_LO8(bp);
__DECL_REG_LOHI(b);
__DECL_REG_HI(11);
__DECL_REG_HI(10);
__DECL_REG_HI(9);
__DECL_REG_HI(8);
__DECL_REG_LOHI(a);
__DECL_REG_LOHI(c);
__DECL_REG_LOHI(d);
__DECL_REG_LO8(si);
__DECL_REG_LO8(di);
uint32_t error_code; /* private */
uint32_t entry_vector; /* private */
__DECL_REG_LO16(ip);
uint16_t cs, _pad0[1];
uint8_t saved_upcall_mask;
uint8_t _pad1[3];
__DECL_REG_LO16(flags); /* rflags.IF == !saved_upcall_mask */
__DECL_REG_LO8(sp);
uint16_t ss, _pad2[3];
uint16_t es, _pad3[3];
uint16_t ds, _pad4[3];
uint16_t fs, _pad5[3];
uint16_t gs, _pad6[3];
};
typedef struct cpu_user_regs cpu_user_regs_t;
DEFINE_XEN_GUEST_HANDLE(cpu_user_regs_t);
#undef __DECL_REG
#undef __DECL_REG_LOHI
#undef __DECL_REG_LO8
#undef __DECL_REG_LO16
#undef __DECL_REG_HI
#define xen_pfn_to_cr3(pfn) ((unsigned long)(pfn) << 12)
#define xen_cr3_to_pfn(cr3) ((unsigned long)(cr3) >> 12)
struct arch_vcpu_info {
unsigned long cr2;
unsigned long pad; /* sizeof(vcpu_info_t) == 64 */
};
typedef struct arch_vcpu_info arch_vcpu_info_t;
typedef unsigned long xen_callback_t;
#endif /* !__ASSEMBLY__ */
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_X86_64_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* arch-x86/xen.h
*
* Guest OS interface to x86 Xen.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2004-2006, K A Fraser
*/
#include "../xen.h"
#ifndef __XEN_PUBLIC_ARCH_X86_XEN_H__
#define __XEN_PUBLIC_ARCH_X86_XEN_H__
/* Structural guest handles introduced in 0x00030201. */
#if __XEN_INTERFACE_VERSION__ >= 0x00030201
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef struct { type *p; } __guest_handle_ ## name
#else
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
typedef type * __guest_handle_ ## name
#endif
/*
* XEN_GUEST_HANDLE represents a guest pointer, when passed as a field
* in a struct in memory.
* XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an
* hypercall argument.
* XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but
* they might not be on other architectures.
*/
#define __DEFINE_XEN_GUEST_HANDLE(name, type) \
___DEFINE_XEN_GUEST_HANDLE(name, type); \
___DEFINE_XEN_GUEST_HANDLE(const_##name, const type)
#define DEFINE_XEN_GUEST_HANDLE(name) __DEFINE_XEN_GUEST_HANDLE(name, name)
#define __XEN_GUEST_HANDLE(name) __guest_handle_ ## name
#define XEN_GUEST_HANDLE(name) __XEN_GUEST_HANDLE(name)
#define XEN_GUEST_HANDLE_PARAM(name) XEN_GUEST_HANDLE(name)
#define set_xen_guest_handle_raw(hnd, val) do { (hnd).p = val; } while (0)
#define set_xen_guest_handle(hnd, val) set_xen_guest_handle_raw(hnd, val)
#if defined(__i386__)
# ifdef __XEN__
__DeFiNe__ __DECL_REG_LO8(which) uint32_t e ## which ## x
__DeFiNe__ __DECL_REG_LO16(name) union { uint32_t e ## name; }
# endif
#include "xen-x86_32.h"
# ifdef __XEN__
__UnDeF__ __DECL_REG_LO8
__UnDeF__ __DECL_REG_LO16
__DeFiNe__ __DECL_REG_LO8(which) e ## which ## x
__DeFiNe__ __DECL_REG_LO16(name) e ## name
# endif
#elif defined(__x86_64__)
#include "xen-x86_64.h"
#endif
#ifndef __ASSEMBLY__
typedef unsigned long xen_pfn_t;
#define PRI_xen_pfn "lx"
#define PRIu_xen_pfn "lu"
#endif
#define XEN_HAVE_PV_GUEST_ENTRY 1
#define XEN_HAVE_PV_UPCALL_MASK 1
/*
* `incontents 200 segdesc Segment Descriptor Tables
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_gdt(const xen_pfn_t frames[], unsigned int entries);
* `
*/
/*
* A number of GDT entries are reserved by Xen. These are not situated at the
* start of the GDT because some stupid OSes export hard-coded selector values
* in their ABI. These hard-coded values are always near the start of the GDT,
* so Xen places itself out of the way, at the far end of the GDT.
*
* NB The LDT is set using the MMUEXT_SET_LDT op of HYPERVISOR_mmuext_op
*/
#define FIRST_RESERVED_GDT_PAGE 14
#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096)
#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8)
/*
* ` enum neg_errnoval
* ` HYPERVISOR_update_descriptor(u64 pa, u64 desc);
* `
* ` @pa The machine physical address of the descriptor to
* ` update. Must be either a descriptor page or writable.
* ` @desc The descriptor value to update, in the same format as a
* ` native descriptor table entry.
*/
/* Maximum number of virtual CPUs in legacy multi-processor guests. */
#define XEN_LEGACY_MAX_VCPUS 32
#ifndef __ASSEMBLY__
typedef unsigned long xen_ulong_t;
#define PRI_xen_ulong "lx"
/*
* ` enum neg_errnoval
* ` HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp);
* `
* Sets the stack segment and pointer for the current vcpu.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_trap_table(const struct trap_info traps[]);
* `
*/
/*
* Send an array of these to HYPERVISOR_set_trap_table().
* Terminate the array with a sentinel entry, with traps[].address==0.
* The privilege level specifies which modes may enter a trap via a software
* interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate
* privilege levels as follows:
* Level == 0: Noone may enter
* Level == 1: Kernel may enter
* Level == 2: Kernel may enter
* Level == 3: Everyone may enter
*
* Note: For compatibility with kernels not setting up exception handlers
* early enough, Xen will avoid trying to inject #GP (and hence crash
* the domain) when an RDMSR would require this, but no handler was
* set yet. The precise conditions are implementation specific, and
* new code may not rely on such behavior anyway.
*/
#define TI_GET_DPL(_ti) ((_ti)->flags & 3)
#define TI_GET_IF(_ti) ((_ti)->flags & 4)
#define TI_SET_DPL(_ti,_dpl) ((_ti)->flags |= (_dpl))
#define TI_SET_IF(_ti,_if) ((_ti)->flags |= ((!!(_if))<<2))
struct trap_info {
uint8_t vector; /* exception vector */
uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */
uint16_t cs; /* code selector */
unsigned long address; /* code offset */
};
typedef struct trap_info trap_info_t;
DEFINE_XEN_GUEST_HANDLE(trap_info_t);
typedef uint64_t tsc_timestamp_t; /* RDTSC timestamp */
/*
* The following is all CPU context. Note that the fpu_ctxt block is filled
* in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used.
*
* Also note that when calling DOMCTL_setvcpucontext for HVM guests, not all
* information in this structure is updated, the fields read include: fpu_ctxt
* (if VGCT_I387_VALID is set), flags, user_regs and debugreg[*].
*
* Note: VCPUOP_initialise for HVM guests is non-symetric with
* DOMCTL_setvcpucontext, and uses struct vcpu_hvm_context from hvm/hvm_vcpu.h
*/
struct vcpu_guest_context {
/* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */
struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */
#define VGCF_I387_VALID (1<<0)
#define VGCF_IN_KERNEL (1<<2)
#define _VGCF_i387_valid 0
#define VGCF_i387_valid (1<<_VGCF_i387_valid)
#define _VGCF_in_kernel 2
#define VGCF_in_kernel (1<<_VGCF_in_kernel)
#define _VGCF_failsafe_disables_events 3
#define VGCF_failsafe_disables_events (1<<_VGCF_failsafe_disables_events)
#define _VGCF_syscall_disables_events 4
#define VGCF_syscall_disables_events (1<<_VGCF_syscall_disables_events)
#define _VGCF_online 5
#define VGCF_online (1<<_VGCF_online)
unsigned long flags; /* VGCF_* flags */
struct cpu_user_regs user_regs; /* User-level CPU registers */
struct trap_info trap_ctxt[256]; /* Virtual IDT */
unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */
unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */
unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */
/* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */
unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */
unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */
#ifdef __i386__
unsigned long event_callback_cs; /* CS:EIP of event callback */
unsigned long event_callback_eip;
unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */
unsigned long failsafe_callback_eip;
#else
unsigned long event_callback_eip;
unsigned long failsafe_callback_eip;
#ifdef __XEN__
union {
unsigned long syscall_callback_eip;
struct {
unsigned int event_callback_cs; /* compat CS of event cb */
unsigned int failsafe_callback_cs; /* compat CS of failsafe cb */
};
};
#else
unsigned long syscall_callback_eip;
#endif
#endif
unsigned long vm_assist; /* VMASST_TYPE_* bitmap */
#ifdef __x86_64__
/* Segment base addresses. */
uint64_t fs_base;
uint64_t gs_base_kernel;
uint64_t gs_base_user;
#endif
};
typedef struct vcpu_guest_context vcpu_guest_context_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_guest_context_t);
struct arch_shared_info {
/*
* Number of valid entries in the p2m table(s) anchored at
* pfn_to_mfn_frame_list_list and/or p2m_vaddr.
*/
unsigned long max_pfn;
/*
* Frame containing list of mfns containing list of mfns containing p2m.
* A value of 0 indicates it has not yet been set up, ~0 indicates it has
* been set to invalid e.g. due to the p2m being too large for the 3-level
* p2m tree. In this case the linear mapper p2m list anchored at p2m_vaddr
* is to be used.
*/
xen_pfn_t pfn_to_mfn_frame_list_list;
unsigned long nmi_reason;
/*
* Following three fields are valid if p2m_cr3 contains a value different
* from 0.
* p2m_cr3 is the root of the address space where p2m_vaddr is valid.
* p2m_cr3 is in the same format as a cr3 value in the vcpu register state
* and holds the folded machine frame number (via xen_pfn_to_cr3) of a
* L3 or L4 page table.
* p2m_vaddr holds the virtual address of the linear p2m list. All entries
* in the range [0...max_pfn[ are accessible via this pointer.
* p2m_generation will be incremented by the guest before and after each
* change of the mappings of the p2m list. p2m_generation starts at 0 and
* a value with the least significant bit set indicates that a mapping
* update is in progress. This allows guest external software (e.g. in Dom0)
* to verify that read mappings are consistent and whether they have changed
* since the last check.
* Modifying a p2m element in the linear p2m list is allowed via an atomic
* write only.
*/
unsigned long p2m_cr3; /* cr3 value of the p2m address space */
unsigned long p2m_vaddr; /* virtual address of the p2m list */
unsigned long p2m_generation; /* generation count of p2m mapping */
#ifdef __i386__
/* There's no room for this field in the generic structure. */
uint32_t wc_sec_hi;
#endif
};
typedef struct arch_shared_info arch_shared_info_t;
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/*
* struct xen_arch_domainconfig's ABI is covered by
* XEN_DOMCTL_INTERFACE_VERSION.
*/
struct xen_arch_domainconfig {
#define _XEN_X86_EMU_LAPIC 0
#define XEN_X86_EMU_LAPIC (1U<<_XEN_X86_EMU_LAPIC)
#define _XEN_X86_EMU_HPET 1
#define XEN_X86_EMU_HPET (1U<<_XEN_X86_EMU_HPET)
#define _XEN_X86_EMU_PM 2
#define XEN_X86_EMU_PM (1U<<_XEN_X86_EMU_PM)
#define _XEN_X86_EMU_RTC 3
#define XEN_X86_EMU_RTC (1U<<_XEN_X86_EMU_RTC)
#define _XEN_X86_EMU_IOAPIC 4
#define XEN_X86_EMU_IOAPIC (1U<<_XEN_X86_EMU_IOAPIC)
#define _XEN_X86_EMU_PIC 5
#define XEN_X86_EMU_PIC (1U<<_XEN_X86_EMU_PIC)
#define _XEN_X86_EMU_VGA 6
#define XEN_X86_EMU_VGA (1U<<_XEN_X86_EMU_VGA)
#define _XEN_X86_EMU_IOMMU 7
#define XEN_X86_EMU_IOMMU (1U<<_XEN_X86_EMU_IOMMU)
#define _XEN_X86_EMU_PIT 8
#define XEN_X86_EMU_PIT (1U<<_XEN_X86_EMU_PIT)
#define _XEN_X86_EMU_USE_PIRQ 9
#define XEN_X86_EMU_USE_PIRQ (1U<<_XEN_X86_EMU_USE_PIRQ)
#define _XEN_X86_EMU_VPCI 10
#define XEN_X86_EMU_VPCI (1U<<_XEN_X86_EMU_VPCI)
#define XEN_X86_EMU_ALL (XEN_X86_EMU_LAPIC | XEN_X86_EMU_HPET | \
XEN_X86_EMU_PM | XEN_X86_EMU_RTC | \
XEN_X86_EMU_IOAPIC | XEN_X86_EMU_PIC | \
XEN_X86_EMU_VGA | XEN_X86_EMU_IOMMU | \
XEN_X86_EMU_PIT | XEN_X86_EMU_USE_PIRQ |\
XEN_X86_EMU_VPCI)
uint32_t emulation_flags;
/*
* Select whether to use a relaxed behavior for accesses to MSRs not explicitly
* handled by Xen instead of injecting a #GP to the guest. Note this option
* doesn't allow the guest to read or write to the underlying MSR.
*/
#define XEN_X86_MSR_RELAXED (1u << 0)
uint32_t misc_flags;
};
/* Location of online VCPU bitmap. */
#define XEN_ACPI_CPU_MAP 0xaf00
#define XEN_ACPI_CPU_MAP_LEN ((HVM_MAX_VCPUS + 7) / 8)
/* GPE0 bit set during CPU hotplug */
#define XEN_ACPI_GPE0_CPUHP_BIT 2
#endif
/*
* Representations of architectural CPUID and MSR information. Used as the
* serialised version of Xen's internal representation.
*/
typedef struct xen_cpuid_leaf {
#define XEN_CPUID_NO_SUBLEAF 0xffffffffu
uint32_t leaf, subleaf;
uint32_t a, b, c, d;
} xen_cpuid_leaf_t;
DEFINE_XEN_GUEST_HANDLE(xen_cpuid_leaf_t);
typedef struct xen_msr_entry {
uint32_t idx;
uint32_t flags; /* Reserved MBZ. */
uint64_t val;
} xen_msr_entry_t;
DEFINE_XEN_GUEST_HANDLE(xen_msr_entry_t);
#endif /* !__ASSEMBLY__ */
/*
* ` enum neg_errnoval
* ` HYPERVISOR_fpu_taskswitch(int set);
* `
* Sets (if set!=0) or clears (if set==0) CR0.TS.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_set_debugreg(int regno, unsigned long value);
*
* ` unsigned long
* ` HYPERVISOR_get_debugreg(int regno);
* For 0<=reg<=7, returns the debug register value.
* For other values of reg, returns ((unsigned long)-EINVAL).
* (Unfortunately, this interface is defective.)
*/
/*
* Prefix forces emulation of some non-trapping instructions.
* Currently only CPUID.
*/
#ifdef __ASSEMBLY__
#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ;
#define XEN_CPUID XEN_EMULATE_PREFIX cpuid
#else
#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; "
#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid"
#endif
/*
* Debug console IO port, also called "port E9 hack". Each character written
* to this IO port will be printed on the hypervisor console, subject to log
* level restrictions.
*/
#define XEN_HVM_DEBUGCONS_IOPORT 0xe9
#endif /* __XEN_PUBLIC_ARCH_X86_XEN_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* event_channel.h
*
* Event channels between domains.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2003-2004, K A Fraser.
*/
#ifndef __XEN_PUBLIC_EVENT_CHANNEL_H__
#define __XEN_PUBLIC_EVENT_CHANNEL_H__
#include "xen.h"
/*
* `incontents 150 evtchn Event Channels
*
* Event channels are the basic primitive provided by Xen for event
* notifications. An event is the Xen equivalent of a hardware
* interrupt. They essentially store one bit of information, the event
* of interest is signalled by transitioning this bit from 0 to 1.
*
* Notifications are received by a guest via an upcall from Xen,
* indicating when an event arrives (setting the bit). Further
* notifications are masked until the bit is cleared again (therefore,
* guests must check the value of the bit after re-enabling event
* delivery to ensure no missed notifications).
*
* Event notifications can be masked by setting a flag; this is
* equivalent to disabling interrupts and can be used to ensure
* atomicity of certain operations in the guest kernel.
*
* Event channels are represented by the evtchn_* fields in
* struct shared_info and struct vcpu_info.
*/
/*
* ` enum neg_errnoval
* ` HYPERVISOR_event_channel_op(enum event_channel_op cmd, void *args)
* `
* @cmd == EVTCHNOP_* (event-channel operation).
* @args == struct evtchn_* Operation-specific extra arguments (NULL if none).
*/
/* ` enum event_channel_op { // EVTCHNOP_* => struct evtchn_* */
#define EVTCHNOP_bind_interdomain 0
#define EVTCHNOP_bind_virq 1
#define EVTCHNOP_bind_pirq 2
#define EVTCHNOP_close 3
#define EVTCHNOP_send 4
#define EVTCHNOP_status 5
#define EVTCHNOP_alloc_unbound 6
#define EVTCHNOP_bind_ipi 7
#define EVTCHNOP_bind_vcpu 8
#define EVTCHNOP_unmask 9
#define EVTCHNOP_reset 10
#define EVTCHNOP_init_control 11
#define EVTCHNOP_expand_array 12
#define EVTCHNOP_set_priority 13
#ifdef __XEN__
#define EVTCHNOP_reset_cont 14
#endif
/* ` } */
typedef uint32_t evtchn_port_t;
DEFINE_XEN_GUEST_HANDLE(evtchn_port_t);
/*
* EVTCHNOP_alloc_unbound: Allocate a port in domain <dom> and mark as
* accepting interdomain bindings from domain <remote_dom>. A fresh port
* is allocated in <dom> and returned as <port>.
* NOTES:
* 1. If the caller is unprivileged then <dom> must be DOMID_SELF.
* 2. <remote_dom> may be DOMID_SELF, allowing loopback connections.
*/
struct evtchn_alloc_unbound {
/* IN parameters */
domid_t dom, remote_dom;
/* OUT parameters */
evtchn_port_t port;
};
typedef struct evtchn_alloc_unbound evtchn_alloc_unbound_t;
/*
* EVTCHNOP_bind_interdomain: Construct an interdomain event channel between
* the calling domain and <remote_dom>. <remote_dom,remote_port> must identify
* a port that is unbound and marked as accepting bindings from the calling
* domain. A fresh port is allocated in the calling domain and returned as
* <local_port>.
*
* In case the peer domain has already tried to set our event channel
* pending, before it was bound, EVTCHNOP_bind_interdomain always sets
* the local event channel pending.
*
* The usual pattern of use, in the guest's upcall (or subsequent
* handler) is as follows: (Re-enable the event channel for subsequent
* signalling and then) check for the existence of whatever condition
* is being waited for by other means, and take whatever action is
* needed (if any).
*
* NOTES:
* 1. <remote_dom> may be DOMID_SELF, allowing loopback connections.
*/
struct evtchn_bind_interdomain {
/* IN parameters. */
domid_t remote_dom;
evtchn_port_t remote_port;
/* OUT parameters. */
evtchn_port_t local_port;
};
typedef struct evtchn_bind_interdomain evtchn_bind_interdomain_t;
/*
* EVTCHNOP_bind_virq: Bind a local event channel to VIRQ <irq> on specified
* vcpu.
* NOTES:
* 1. Virtual IRQs are classified as per-vcpu or global. See the VIRQ list
* in xen.h for the classification of each VIRQ.
* 2. Global VIRQs must be allocated on VCPU0 but can subsequently be
* re-bound via EVTCHNOP_bind_vcpu.
* 3. Per-vcpu VIRQs may be bound to at most one event channel per vcpu.
* The allocated event channel is bound to the specified vcpu and the
* binding cannot be changed.
*/
struct evtchn_bind_virq {
/* IN parameters. */
uint32_t virq; /* enum virq */
uint32_t vcpu;
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_virq evtchn_bind_virq_t;
/*
* EVTCHNOP_bind_pirq: Bind a local event channel to a real IRQ (PIRQ <irq>).
* NOTES:
* 1. A physical IRQ may be bound to at most one event channel per domain.
* 2. Only a sufficiently-privileged domain may bind to a physical IRQ.
*/
struct evtchn_bind_pirq {
/* IN parameters. */
uint32_t pirq;
#define BIND_PIRQ__WILL_SHARE 1
uint32_t flags; /* BIND_PIRQ__* */
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_pirq evtchn_bind_pirq_t;
/*
* EVTCHNOP_bind_ipi: Bind a local event channel to receive events.
* NOTES:
* 1. The allocated event channel is bound to the specified vcpu. The binding
* may not be changed.
*/
struct evtchn_bind_ipi {
uint32_t vcpu;
/* OUT parameters. */
evtchn_port_t port;
};
typedef struct evtchn_bind_ipi evtchn_bind_ipi_t;
/*
* EVTCHNOP_close: Close a local event channel <port>. If the channel is
* interdomain then the remote end is placed in the unbound state
* (EVTCHNSTAT_unbound), awaiting a new connection.
*/
struct evtchn_close {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_close evtchn_close_t;
/*
* EVTCHNOP_send: Send an event to the remote end of the channel whose local
* endpoint is <port>.
*/
struct evtchn_send {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_send evtchn_send_t;
/*
* EVTCHNOP_status: Get the current status of the communication channel which
* has an endpoint at <dom, port>.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may obtain the status of an event
* channel for which <dom> is not DOMID_SELF.
*/
struct evtchn_status {
/* IN parameters */
domid_t dom;
evtchn_port_t port;
/* OUT parameters */
#define EVTCHNSTAT_closed 0 /* Channel is not in use. */
#define EVTCHNSTAT_unbound 1 /* Channel is waiting interdom connection.*/
#define EVTCHNSTAT_interdomain 2 /* Channel is connected to remote domain. */
#define EVTCHNSTAT_pirq 3 /* Channel is bound to a phys IRQ line. */
#define EVTCHNSTAT_virq 4 /* Channel is bound to a virtual IRQ line */
#define EVTCHNSTAT_ipi 5 /* Channel is bound to a virtual IPI line */
uint32_t status;
uint32_t vcpu; /* VCPU to which this channel is bound. */
union {
struct {
domid_t dom;
} unbound; /* EVTCHNSTAT_unbound */
struct {
domid_t dom;
evtchn_port_t port;
} interdomain; /* EVTCHNSTAT_interdomain */
uint32_t pirq; /* EVTCHNSTAT_pirq */
uint32_t virq; /* EVTCHNSTAT_virq */
} u;
};
typedef struct evtchn_status evtchn_status_t;
/*
* EVTCHNOP_bind_vcpu: Specify which vcpu a channel should notify when an
* event is pending.
* NOTES:
* 1. IPI-bound channels always notify the vcpu specified at bind time.
* This binding cannot be changed.
* 2. Per-VCPU VIRQ channels always notify the vcpu specified at bind time.
* This binding cannot be changed.
* 3. All other channels notify vcpu0 by default. This default is set when
* the channel is allocated (a port that is freed and subsequently reused
* has its binding reset to vcpu0).
*/
struct evtchn_bind_vcpu {
/* IN parameters. */
evtchn_port_t port;
uint32_t vcpu;
};
typedef struct evtchn_bind_vcpu evtchn_bind_vcpu_t;
/*
* EVTCHNOP_unmask: Unmask the specified local event-channel port and deliver
* a notification to the appropriate VCPU if an event is pending.
*/
struct evtchn_unmask {
/* IN parameters. */
evtchn_port_t port;
};
typedef struct evtchn_unmask evtchn_unmask_t;
/*
* EVTCHNOP_reset: Close all event channels associated with specified domain.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify other than DOMID_SELF.
* 3. Destroys all control blocks and event array, resets event channel
* operations to 2-level ABI if called with <dom> == DOMID_SELF and FIFO
* ABI was used. Guests should not bind events during EVTCHNOP_reset call
* as these events are likely to be lost.
*/
struct evtchn_reset {
/* IN parameters. */
domid_t dom;
};
typedef struct evtchn_reset evtchn_reset_t;
/*
* EVTCHNOP_init_control: initialize the control block for the FIFO ABI.
*
* Note: any events that are currently pending will not be resent and
* will be lost. Guests should call this before binding any event to
* avoid losing any events.
*/
struct evtchn_init_control {
/* IN parameters. */
uint64_t control_gfn;
uint32_t offset;
uint32_t vcpu;
/* OUT parameters. */
uint8_t link_bits;
uint8_t _pad[7];
};
typedef struct evtchn_init_control evtchn_init_control_t;
/*
* EVTCHNOP_expand_array: add an additional page to the event array.
*/
struct evtchn_expand_array {
/* IN parameters. */
uint64_t array_gfn;
};
typedef struct evtchn_expand_array evtchn_expand_array_t;
/*
* EVTCHNOP_set_priority: set the priority for an event channel.
*/
struct evtchn_set_priority {
/* IN parameters. */
evtchn_port_t port;
uint32_t priority;
};
typedef struct evtchn_set_priority evtchn_set_priority_t;
/*
* ` enum neg_errnoval
* ` HYPERVISOR_event_channel_op_compat(struct evtchn_op *op)
* `
* Superceded by new event_channel_op() hypercall since 0x00030202.
*/
struct evtchn_op {
uint32_t cmd; /* enum event_channel_op */
union {
evtchn_alloc_unbound_t alloc_unbound;
evtchn_bind_interdomain_t bind_interdomain;
evtchn_bind_virq_t bind_virq;
evtchn_bind_pirq_t bind_pirq;
evtchn_bind_ipi_t bind_ipi;
evtchn_close_t close;
evtchn_send_t send;
evtchn_status_t status;
evtchn_bind_vcpu_t bind_vcpu;
evtchn_unmask_t unmask;
} u;
};
typedef struct evtchn_op evtchn_op_t;
DEFINE_XEN_GUEST_HANDLE(evtchn_op_t);
/*
* 2-level ABI
*/
#define EVTCHN_2L_NR_CHANNELS (sizeof(xen_ulong_t) * sizeof(xen_ulong_t) * 64)
/*
* FIFO ABI
*/
/* Events may have priorities from 0 (highest) to 15 (lowest). */
#define EVTCHN_FIFO_PRIORITY_MAX 0
#define EVTCHN_FIFO_PRIORITY_DEFAULT 7
#define EVTCHN_FIFO_PRIORITY_MIN 15
#define EVTCHN_FIFO_MAX_QUEUES (EVTCHN_FIFO_PRIORITY_MIN + 1)
typedef uint32_t event_word_t;
#define EVTCHN_FIFO_PENDING 31
#define EVTCHN_FIFO_MASKED 30
#define EVTCHN_FIFO_LINKED 29
#define EVTCHN_FIFO_BUSY 28
#define EVTCHN_FIFO_LINK_BITS 17
#define EVTCHN_FIFO_LINK_MASK ((1 << EVTCHN_FIFO_LINK_BITS) - 1)
#define EVTCHN_FIFO_NR_CHANNELS (1 << EVTCHN_FIFO_LINK_BITS)
struct evtchn_fifo_control_block {
uint32_t ready;
uint32_t _rsvd;
uint32_t head[EVTCHN_FIFO_MAX_QUEUES];
};
typedef struct evtchn_fifo_control_block evtchn_fifo_control_block_t;
#endif /* __XEN_PUBLIC_EVENT_CHANNEL_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* features.h
*
* Feature flags, reported by XENVER_get_features.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_FEATURES_H__
#define __XEN_PUBLIC_FEATURES_H__
/*
* `incontents 200 elfnotes_features XEN_ELFNOTE_FEATURES
*
* The list of all the features the guest supports. They are set by
* parsing the XEN_ELFNOTE_FEATURES and XEN_ELFNOTE_SUPPORTED_FEATURES
* string. The format is the feature names (as given here without the
* "XENFEAT_" prefix) separated by '|' characters.
* If a feature is required for the kernel to function then the feature name
* must be preceded by a '!' character.
*
* Note that if XEN_ELFNOTE_SUPPORTED_FEATURES is used, then in the
* XENFEAT_dom0 MUST be set if the guest is to be booted as dom0,
*/
/*
* If set, the guest does not need to write-protect its pagetables, and can
* update them via direct writes.
*/
#define XENFEAT_writable_page_tables 0
/*
* If set, the guest does not need to write-protect its segment descriptor
* tables, and can update them via direct writes.
*/
#define XENFEAT_writable_descriptor_tables 1
/*
* If set, translation between the guest's 'pseudo-physical' address space
* and the host's machine address space are handled by the hypervisor. In this
* mode the guest does not need to perform phys-to/from-machine translations
* when performing page table operations.
*/
#define XENFEAT_auto_translated_physmap 2
/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
#define XENFEAT_supervisor_mode_kernel 3
/*
* If set, the guest does not need to allocate x86 PAE page directories
* below 4GB. This flag is usually implied by auto_translated_physmap.
*/
#define XENFEAT_pae_pgdir_above_4gb 4
/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
#define XENFEAT_mmu_pt_update_preserve_ad 5
/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
#define XENFEAT_highmem_assist 6
/*
* If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
* available pte bits.
*/
#define XENFEAT_gnttab_map_avail_bits 7
/* x86: Does this Xen host support the HVM callback vector type? */
#define XENFEAT_hvm_callback_vector 8
/* x86: pvclock algorithm is safe to use on HVM */
#define XENFEAT_hvm_safe_pvclock 9
/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs 10
/* operation as Dom0 is supported */
#define XENFEAT_dom0 11
/* Xen also maps grant references at pfn = mfn.
* This feature flag is deprecated and should not be used.
#define XENFEAT_grant_map_identity 12
*/
/* Guest can use XENMEMF_vnode to specify virtual node for memory op. */
#define XENFEAT_memory_op_vnode_supported 13
/* arm: Hypervisor supports ARM SMC calling convention. */
#define XENFEAT_ARM_SMCCC_supported 14
/*
* x86/PVH: If set, ACPI RSDP can be placed at any address. Otherwise RSDP
* must be located in lower 1MB, as required by ACPI Specification for IA-PC
* systems.
* This feature flag is only consulted if XEN_ELFNOTE_GUEST_OS contains
* the "linux" string.
*/
#define XENFEAT_linux_rsdp_unrestricted 15
/*
* A direct-mapped (or 1:1 mapped) domain is a domain for which its
* local pages have gfn == mfn. If a domain is direct-mapped,
* XENFEAT_direct_mapped is set; otherwise XENFEAT_not_direct_mapped
* is set.
*
* If neither flag is set (e.g. older Xen releases) the assumptions are:
* - not auto_translated domains (x86 only) are always direct-mapped
* - on x86, auto_translated domains are not direct-mapped
* - on ARM, Dom0 is direct-mapped, DomUs are not
*/
#define XENFEAT_not_direct_mapped 16
#define XENFEAT_direct_mapped 17
#define XENFEAT_NR_SUBMAPS 1
#endif /* __XEN_PUBLIC_FEATURES_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

650
include/hw/xen/interface/grant_table.h
View File

@ -28,9 +28,659 @@
#ifndef __XEN_PUBLIC_GRANT_TABLE_H__
#define __XEN_PUBLIC_GRANT_TABLE_H__
#include "xen.h"
/*
* `incontents 150 gnttab Grant Tables
*
* Xen's grant tables provide a generic mechanism to memory sharing
* between domains. This shared memory interface underpins the split
* device drivers for block and network IO.
*
* Each domain has its own grant table. This is a data structure that
* is shared with Xen; it allows the domain to tell Xen what kind of
* permissions other domains have on its pages. Entries in the grant
* table are identified by grant references. A grant reference is an
* integer, which indexes into the grant table. It acts as a
* capability which the grantee can use to perform operations on the
* granter's memory.
*
* This capability-based system allows shared-memory communications
* between unprivileged domains. A grant reference also encapsulates
* the details of a shared page, removing the need for a domain to
* know the real machine address of a page it is sharing. This makes
* it possible to share memory correctly with domains running in
* fully virtualised memory.
*/
/***********************************
* GRANT TABLE REPRESENTATION
*/
/* Some rough guidelines on accessing and updating grant-table entries
* in a concurrency-safe manner. For more information, Linux contains a
* reference implementation for guest OSes (drivers/xen/grant_table.c, see
* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=drivers/xen/grant-table.c;hb=HEAD
*
* NB. WMB is a no-op on current-generation x86 processors. However, a
* compiler barrier will still be required.
*
* Introducing a valid entry into the grant table:
* 1. Write ent->domid.
* 2. Write ent->frame:
* GTF_permit_access: Frame to which access is permitted.
* GTF_accept_transfer: Pseudo-phys frame slot being filled by new
* frame, or zero if none.
* 3. Write memory barrier (WMB).
* 4. Write ent->flags, inc. valid type.
*
* Invalidating an unused GTF_permit_access entry:
* 1. flags = ent->flags.
* 2. Observe that !(flags & (GTF_reading|GTF_writing)).
* 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0).
* NB. No need for WMB as reuse of entry is control-dependent on success of
* step 3, and all architectures guarantee ordering of ctrl-dep writes.
*
* Invalidating an in-use GTF_permit_access entry:
* This cannot be done directly. Request assistance from the domain controller
* which can set a timeout on the use of a grant entry and take necessary
* action. (NB. This is not yet implemented!).
*
* Invalidating an unused GTF_accept_transfer entry:
* 1. flags = ent->flags.
* 2. Observe that !(flags & GTF_transfer_committed). [*]
* 3. Check result of SMP-safe CMPXCHG(&ent->flags, flags, 0).
* NB. No need for WMB as reuse of entry is control-dependent on success of
* step 3, and all architectures guarantee ordering of ctrl-dep writes.
* [*] If GTF_transfer_committed is set then the grant entry is 'committed'.
* The guest must /not/ modify the grant entry until the address of the
* transferred frame is written. It is safe for the guest to spin waiting
* for this to occur (detect by observing GTF_transfer_completed in
* ent->flags).
*
* Invalidating a committed GTF_accept_transfer entry:
* 1. Wait for (ent->flags & GTF_transfer_completed).
*
* Changing a GTF_permit_access from writable to read-only:
* Use SMP-safe CMPXCHG to set GTF_readonly, while checking !GTF_writing.
*
* Changing a GTF_permit_access from read-only to writable:
* Use SMP-safe bit-setting instruction.
*/
/*
* Reference to a grant entry in a specified domain's grant table.
*/
typedef uint32_t grant_ref_t;
/*
* A grant table comprises a packed array of grant entries in one or more
* page frames shared between Xen and a guest.
* [XEN]: This field is written by Xen and read by the sharing guest.
* [GST]: This field is written by the guest and read by Xen.
*/
/*
* Version 1 of the grant table entry structure is maintained largely for
* backwards compatibility. New guests are recommended to support using
* version 2 to overcome version 1 limitations, but to default to version 1.
*/
#if __XEN_INTERFACE_VERSION__ < 0x0003020a
#define grant_entry_v1 grant_entry
#define grant_entry_v1_t grant_entry_t
#endif
struct grant_entry_v1 {
/* GTF_xxx: various type and flag information. [XEN,GST] */
uint16_t flags;
/* The domain being granted foreign privileges. [GST] */
domid_t domid;
/*
* GTF_permit_access: GFN that @domid is allowed to map and access. [GST]
* GTF_accept_transfer: GFN that @domid is allowed to transfer into. [GST]
* GTF_transfer_completed: MFN whose ownership transferred by @domid
* (non-translated guests only). [XEN]
*/
uint32_t frame;
};
typedef struct grant_entry_v1 grant_entry_v1_t;
/* The first few grant table entries will be preserved across grant table
* version changes and may be pre-populated at domain creation by tools.
*/
#define GNTTAB_NR_RESERVED_ENTRIES 8
#define GNTTAB_RESERVED_CONSOLE 0
#define GNTTAB_RESERVED_XENSTORE 1
/*
* Type of grant entry.
* GTF_invalid: This grant entry grants no privileges.
* GTF_permit_access: Allow @domid to map/access @frame.
* GTF_accept_transfer: Allow @domid to transfer ownership of one page frame
* to this guest. Xen writes the page number to @frame.
* GTF_transitive: Allow @domid to transitively access a subrange of
* @trans_grant in @trans_domid. No mappings are allowed.
*/
#define GTF_invalid (0U<<0)
#define GTF_permit_access (1U<<0)
#define GTF_accept_transfer (2U<<0)
#define GTF_transitive (3U<<0)
#define GTF_type_mask (3U<<0)
/*
* Subflags for GTF_permit_access and GTF_transitive.
* GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST]
* GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
* GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
* Further subflags for GTF_permit_access only.
* GTF_PAT, GTF_PWT, GTF_PCD: (x86) cache attribute flags to be used for
* mappings of the grant [GST]
* GTF_sub_page: Grant access to only a subrange of the page. @domid
* will only be allowed to copy from the grant, and not
* map it. [GST]
*/
#define _GTF_readonly (2)
#define GTF_readonly (1U<<_GTF_readonly)
#define _GTF_reading (3)
#define GTF_reading (1U<<_GTF_reading)
#define _GTF_writing (4)
#define GTF_writing (1U<<_GTF_writing)
#define _GTF_PWT (5)
#define GTF_PWT (1U<<_GTF_PWT)
#define _GTF_PCD (6)
#define GTF_PCD (1U<<_GTF_PCD)
#define _GTF_PAT (7)
#define GTF_PAT (1U<<_GTF_PAT)
#define _GTF_sub_page (8)
#define GTF_sub_page (1U<<_GTF_sub_page)
/*
* Subflags for GTF_accept_transfer:
* GTF_transfer_committed: Xen sets this flag to indicate that it is committed
* to transferring ownership of a page frame. When a guest sees this flag
* it must /not/ modify the grant entry until GTF_transfer_completed is
* set by Xen.
* GTF_transfer_completed: It is safe for the guest to spin-wait on this flag
* after reading GTF_transfer_committed. Xen will always write the frame
* address, followed by ORing this flag, in a timely manner.
*/
#define _GTF_transfer_committed (2)
#define GTF_transfer_committed (1U<<_GTF_transfer_committed)
#define _GTF_transfer_completed (3)
#define GTF_transfer_completed (1U<<_GTF_transfer_completed)
/*
* Version 2 grant table entries. These fulfil the same role as
* version 1 entries, but can represent more complicated operations.
* Any given domain will have either a version 1 or a version 2 table,
* and every entry in the table will be the same version.
*
* The interface by which domains use grant references does not depend
* on the grant table version in use by the other domain.
*/
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
/*
* Version 1 and version 2 grant entries share a common prefix. The
* fields of the prefix are documented as part of struct
* grant_entry_v1.
*/
struct grant_entry_header {
uint16_t flags;
domid_t domid;
};
typedef struct grant_entry_header grant_entry_header_t;
/*
* Version 2 of the grant entry structure.
*/
union grant_entry_v2 {
grant_entry_header_t hdr;
/*
* This member is used for V1-style full page grants, where either:
*
* -- hdr.type is GTF_accept_transfer, or
* -- hdr.type is GTF_permit_access and GTF_sub_page is not set.
*
* In that case, the frame field has the same semantics as the
* field of the same name in the V1 entry structure.
*/
struct {
grant_entry_header_t hdr;
uint32_t pad0;
uint64_t frame;
} full_page;
/*
* If the grant type is GTF_grant_access and GTF_sub_page is set,
* @domid is allowed to access bytes [@page_off,@page_off+@length)
* in frame @frame.
*/
struct {
grant_entry_header_t hdr;
uint16_t page_off;
uint16_t length;
uint64_t frame;
} sub_page;
/*
* If the grant is GTF_transitive, @domid is allowed to use the
* grant @gref in domain @trans_domid, as if it was the local
* domain. Obviously, the transitive access must be compatible
* with the original grant.
*
* The current version of Xen does not allow transitive grants
* to be mapped.
*/
struct {
grant_entry_header_t hdr;
domid_t trans_domid;
uint16_t pad0;
grant_ref_t gref;
} transitive;
uint32_t __spacer[4]; /* Pad to a power of two */
};
typedef union grant_entry_v2 grant_entry_v2_t;
typedef uint16_t grant_status_t;
#endif /* __XEN_INTERFACE_VERSION__ */
/***********************************
* GRANT TABLE QUERIES AND USES
*/
/* ` enum neg_errnoval
* ` HYPERVISOR_grant_table_op(enum grant_table_op cmd,
* ` void *args,
* ` unsigned int count)
* `
*
* @args points to an array of a per-command data structure. The array
* has @count members
*/
/* ` enum grant_table_op { // GNTTABOP_* => struct gnttab_* */
#define GNTTABOP_map_grant_ref 0
#define GNTTABOP_unmap_grant_ref 1
#define GNTTABOP_setup_table 2
#define GNTTABOP_dump_table 3
#define GNTTABOP_transfer 4
#define GNTTABOP_copy 5
#define GNTTABOP_query_size 6
#define GNTTABOP_unmap_and_replace 7
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
#define GNTTABOP_set_version 8
#define GNTTABOP_get_status_frames 9
#define GNTTABOP_get_version 10
#define GNTTABOP_swap_grant_ref 11
#define GNTTABOP_cache_flush 12
#endif /* __XEN_INTERFACE_VERSION__ */
/* ` } */
/*
* Handle to track a mapping created via a grant reference.
*/
typedef uint32_t grant_handle_t;
/*
* GNTTABOP_map_grant_ref: Map the grant entry (<dom>,<ref>) for access
* by devices and/or host CPUs. If successful, <handle> is a tracking number
* that must be presented later to destroy the mapping(s). On error, <status>
* is a negative status code.
* NOTES:
* 1. If GNTMAP_device_map is specified then <dev_bus_addr> is the address
* via which I/O devices may access the granted frame.
* 2. If GNTMAP_host_map is specified then a mapping will be added at
* either a host virtual address in the current address space, or at
* a PTE at the specified machine address. The type of mapping to
* perform is selected through the GNTMAP_contains_pte flag, and the
* address is specified in <host_addr>.
* 3. Mappings should only be destroyed via GNTTABOP_unmap_grant_ref. If a
* host mapping is destroyed by other means then it is *NOT* guaranteed
* to be accounted to the correct grant reference!
*/
struct gnttab_map_grant_ref {
/* IN parameters. */
uint64_t host_addr;
uint32_t flags; /* GNTMAP_* */
grant_ref_t ref;
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
grant_handle_t handle;
uint64_t dev_bus_addr;
};
typedef struct gnttab_map_grant_ref gnttab_map_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_map_grant_ref_t);
/*
* GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings
* tracked by <handle>. If <host_addr> or <dev_bus_addr> is zero, that
* field is ignored. If non-zero, they must refer to a device/host mapping
* that is tracked by <handle>
* NOTES:
* 1. The call may fail in an undefined manner if either mapping is not
* tracked by <handle>.
* 3. After executing a batch of unmaps, it is guaranteed that no stale
* mappings will remain in the device or host TLBs.
*/
struct gnttab_unmap_grant_ref {
/* IN parameters. */
uint64_t host_addr;
uint64_t dev_bus_addr;
grant_handle_t handle;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_unmap_grant_ref gnttab_unmap_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_unmap_grant_ref_t);
/*
* GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least
* <nr_frames> pages. The frame addresses are written to the <frame_list>.
* Only <nr_frames> addresses are written, even if the table is larger.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
* 3. Xen may not support more than a single grant-table page per domain.
*/
struct gnttab_setup_table {
/* IN parameters. */
domid_t dom;
uint32_t nr_frames;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
#if __XEN_INTERFACE_VERSION__ < 0x00040300
XEN_GUEST_HANDLE(ulong) frame_list;
#else
XEN_GUEST_HANDLE(xen_pfn_t) frame_list;
#endif
};
typedef struct gnttab_setup_table gnttab_setup_table_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_setup_table_t);
/*
* GNTTABOP_dump_table: Dump the contents of the grant table to the
* xen console. Debugging use only.
*/
struct gnttab_dump_table {
/* IN parameters. */
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_dump_table gnttab_dump_table_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_dump_table_t);
/*
* GNTTABOP_transfer: Transfer <frame> to a foreign domain. The foreign domain
* has previously registered its interest in the transfer via <domid, ref>.
*
* Note that, even if the transfer fails, the specified page no longer belongs
* to the calling domain *unless* the error is GNTST_bad_page.
*
* Note further that only PV guests can use this operation.
*/
struct gnttab_transfer {
/* IN parameters. */
xen_pfn_t mfn;
domid_t domid;
grant_ref_t ref;
/* OUT parameters. */
int16_t status;
};
typedef struct gnttab_transfer gnttab_transfer_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_transfer_t);
/*
* GNTTABOP_copy: Hypervisor based copy
* source and destinations can be eithers MFNs or, for foreign domains,
* grant references. the foreign domain has to grant read/write access
* in its grant table.
*
* The flags specify what type source and destinations are (either MFN
* or grant reference).
*
* Note that this can also be used to copy data between two domains
* via a third party if the source and destination domains had previously
* grant appropriate access to their pages to the third party.
*
* source_offset specifies an offset in the source frame, dest_offset
* the offset in the target frame and len specifies the number of
* bytes to be copied.
*/
#define _GNTCOPY_source_gref (0)
#define GNTCOPY_source_gref (1<<_GNTCOPY_source_gref)
#define _GNTCOPY_dest_gref (1)
#define GNTCOPY_dest_gref (1<<_GNTCOPY_dest_gref)
struct gnttab_copy {
/* IN parameters. */
struct gnttab_copy_ptr {
union {
grant_ref_t ref;
xen_pfn_t gmfn;
} u;
domid_t domid;
uint16_t offset;
} source, dest;
uint16_t len;
uint16_t flags; /* GNTCOPY_* */
/* OUT parameters. */
int16_t status;
};
typedef struct gnttab_copy gnttab_copy_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_copy_t);
/*
* GNTTABOP_query_size: Query the current and maximum sizes of the shared
* grant table.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
*/
struct gnttab_query_size {
/* IN parameters. */
domid_t dom;
/* OUT parameters. */
uint32_t nr_frames;
uint32_t max_nr_frames;
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_query_size gnttab_query_size_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_query_size_t);
/*
* GNTTABOP_unmap_and_replace: Destroy one or more grant-reference mappings
* tracked by <handle> but atomically replace the page table entry with one
* pointing to the machine address under <new_addr>. <new_addr> will be
* redirected to the null entry.
* NOTES:
* 1. The call may fail in an undefined manner if either mapping is not
* tracked by <handle>.
* 2. After executing a batch of unmaps, it is guaranteed that no stale
* mappings will remain in the device or host TLBs.
*/
struct gnttab_unmap_and_replace {
/* IN parameters. */
uint64_t host_addr;
uint64_t new_addr;
grant_handle_t handle;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_unmap_and_replace gnttab_unmap_and_replace_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_unmap_and_replace_t);
#if __XEN_INTERFACE_VERSION__ >= 0x0003020a
/*
* GNTTABOP_set_version: Request a particular version of the grant
* table shared table structure. This operation may be used to toggle
* between different versions, but must be performed while no grants
* are active. The only defined versions are 1 and 2.
*/
struct gnttab_set_version {
/* IN/OUT parameters */
uint32_t version;
};
typedef struct gnttab_set_version gnttab_set_version_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_set_version_t);
/*
* GNTTABOP_get_status_frames: Get the list of frames used to store grant
* status for <dom>. In grant format version 2, the status is separated
* from the other shared grant fields to allow more efficient synchronization
* using barriers instead of atomic cmpexch operations.
* <nr_frames> specify the size of vector <frame_list>.
* The frame addresses are returned in the <frame_list>.
* Only <nr_frames> addresses are returned, even if the table is larger.
* NOTES:
* 1. <dom> may be specified as DOMID_SELF.
* 2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
*/
struct gnttab_get_status_frames {
/* IN parameters. */
uint32_t nr_frames;
domid_t dom;
/* OUT parameters. */
int16_t status; /* => enum grant_status */
XEN_GUEST_HANDLE(uint64_t) frame_list;
};
typedef struct gnttab_get_status_frames gnttab_get_status_frames_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_get_status_frames_t);
/*
* GNTTABOP_get_version: Get the grant table version which is in
* effect for domain <dom>.
*/
struct gnttab_get_version {
/* IN parameters */
domid_t dom;
uint16_t pad;
/* OUT parameters */
uint32_t version;
};
typedef struct gnttab_get_version gnttab_get_version_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_get_version_t);
/*
* GNTTABOP_swap_grant_ref: Swap the contents of two grant entries.
*/
struct gnttab_swap_grant_ref {
/* IN parameters */
grant_ref_t ref_a;
grant_ref_t ref_b;
/* OUT parameters */
int16_t status; /* => enum grant_status */
};
typedef struct gnttab_swap_grant_ref gnttab_swap_grant_ref_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_swap_grant_ref_t);
/*
* Issue one or more cache maintenance operations on a portion of a
* page granted to the calling domain by a foreign domain.
*/
struct gnttab_cache_flush {
union {
uint64_t dev_bus_addr;
grant_ref_t ref;
} a;
uint16_t offset; /* offset from start of grant */
uint16_t length; /* size within the grant */
#define GNTTAB_CACHE_CLEAN (1u<<0)
#define GNTTAB_CACHE_INVAL (1u<<1)
#define GNTTAB_CACHE_SOURCE_GREF (1u<<31)
uint32_t op;
};
typedef struct gnttab_cache_flush gnttab_cache_flush_t;
DEFINE_XEN_GUEST_HANDLE(gnttab_cache_flush_t);
#endif /* __XEN_INTERFACE_VERSION__ */
/*
* Bitfield values for gnttab_map_grant_ref.flags.
*/
/* Map the grant entry for access by I/O devices. */
#define _GNTMAP_device_map (0)
#define GNTMAP_device_map (1<<_GNTMAP_device_map)
/* Map the grant entry for access by host CPUs. */
#define _GNTMAP_host_map (1)
#define GNTMAP_host_map (1<<_GNTMAP_host_map)
/* Accesses to the granted frame will be restricted to read-only access. */
#define _GNTMAP_readonly (2)
#define GNTMAP_readonly (1<<_GNTMAP_readonly)
/*
* GNTMAP_host_map subflag:
* 0 => The host mapping is usable only by the guest OS.
* 1 => The host mapping is usable by guest OS + current application.
*/
#define _GNTMAP_application_map (3)
#define GNTMAP_application_map (1<<_GNTMAP_application_map)
/*
* GNTMAP_contains_pte subflag:
* 0 => This map request contains a host virtual address.
* 1 => This map request contains the machine addess of the PTE to update.
*/
#define _GNTMAP_contains_pte (4)
#define GNTMAP_contains_pte (1<<_GNTMAP_contains_pte)
/*
* Bits to be placed in guest kernel available PTE bits (architecture
* dependent; only supported when XENFEAT_gnttab_map_avail_bits is set).
*/
#define _GNTMAP_guest_avail0 (16)
#define GNTMAP_guest_avail_mask ((uint32_t)~0 << _GNTMAP_guest_avail0)
/*
* Values for error status returns. All errors are -ve.
*/
/* ` enum grant_status { */
#define GNTST_okay (0) /* Normal return. */
#define GNTST_general_error (-1) /* General undefined error. */
#define GNTST_bad_domain (-2) /* Unrecognsed domain id. */
#define GNTST_bad_gntref (-3) /* Unrecognised or inappropriate gntref. */
#define GNTST_bad_handle (-4) /* Unrecognised or inappropriate handle. */
#define GNTST_bad_virt_addr (-5) /* Inappropriate virtual address to map. */
#define GNTST_bad_dev_addr (-6) /* Inappropriate device address to unmap.*/
#define GNTST_no_device_space (-7) /* Out of space in I/O MMU. */
#define GNTST_permission_denied (-8) /* Not enough privilege for operation. */
#define GNTST_bad_page (-9) /* Specified page was invalid for op. */
#define GNTST_bad_copy_arg (-10) /* copy arguments cross page boundary. */
#define GNTST_address_too_big (-11) /* transfer page address too large. */
#define GNTST_eagain (-12) /* Operation not done; try again. */
#define GNTST_no_space (-13) /* Out of space (handles etc). */
/* ` } */
#define GNTTABOP_error_msgs { \
"okay", \
"undefined error", \
"unrecognised domain id", \
"invalid grant reference", \
"invalid mapping handle", \
"invalid virtual address", \
"invalid device address", \
"no spare translation slot in the I/O MMU", \
"permission denied", \
"bad page", \
"copy arguments cross page boundary", \
"page address size too large", \
"operation not done; try again", \
"out of space", \
}
#endif /* __XEN_PUBLIC_GRANT_TABLE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2007, Keir Fraser
*/
#ifndef __XEN_PUBLIC_HVM_HVM_OP_H__
#define __XEN_PUBLIC_HVM_HVM_OP_H__
#include "../xen.h"
#include "../trace.h"
#include "../event_channel.h"
/* Get/set subcommands: extra argument == pointer to xen_hvm_param struct. */
#define HVMOP_set_param 0
#define HVMOP_get_param 1
struct xen_hvm_param {
domid_t domid; /* IN */
uint16_t pad;
uint32_t index; /* IN */
uint64_t value; /* IN/OUT */
};
typedef struct xen_hvm_param xen_hvm_param_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_param_t);
struct xen_hvm_altp2m_suppress_ve {
uint16_t view;
uint8_t suppress_ve; /* Boolean type. */
uint8_t pad1;
uint32_t pad2;
uint64_t gfn;
};
struct xen_hvm_altp2m_suppress_ve_multi {
uint16_t view;
uint8_t suppress_ve; /* Boolean type. */
uint8_t pad1;
int32_t first_error; /* Should be set to 0. */
uint64_t first_gfn; /* Value may be updated. */
uint64_t last_gfn;
uint64_t first_error_gfn; /* Gfn of the first error. */
};
#if __XEN_INTERFACE_VERSION__ < 0x00040900
/* Set the logical level of one of a domain's PCI INTx wires. */
#define HVMOP_set_pci_intx_level 2
struct xen_hvm_set_pci_intx_level {
/* Domain to be updated. */
domid_t domid;
/* PCI INTx identification in PCI topology (domain:bus:device:intx). */
uint8_t domain, bus, device, intx;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_pci_intx_level xen_hvm_set_pci_intx_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_intx_level_t);
/* Set the logical level of one of a domain's ISA IRQ wires. */
#define HVMOP_set_isa_irq_level 3
struct xen_hvm_set_isa_irq_level {
/* Domain to be updated. */
domid_t domid;
/* ISA device identification, by ISA IRQ (0-15). */
uint8_t isa_irq;
/* Assertion level (0 = unasserted, 1 = asserted). */
uint8_t level;
};
typedef struct xen_hvm_set_isa_irq_level xen_hvm_set_isa_irq_level_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_isa_irq_level_t);
#define HVMOP_set_pci_link_route 4
struct xen_hvm_set_pci_link_route {
/* Domain to be updated. */
domid_t domid;
/* PCI link identifier (0-3). */
uint8_t link;
/* ISA IRQ (1-15), or 0 (disable link). */
uint8_t isa_irq;
};
typedef struct xen_hvm_set_pci_link_route xen_hvm_set_pci_link_route_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_set_pci_link_route_t);
#endif /* __XEN_INTERFACE_VERSION__ < 0x00040900 */
/* Flushes all VCPU TLBs: @arg must be NULL. */
#define HVMOP_flush_tlbs 5
/*
* hvmmem_type_t should not be defined when generating the corresponding
* compat header. This will ensure that the improperly named HVMMEM_(*)
* values are defined only once.
*/
#ifndef XEN_GENERATING_COMPAT_HEADERS
typedef enum {
HVMMEM_ram_rw, /* Normal read/write guest RAM */
HVMMEM_ram_ro, /* Read-only; writes are discarded */
HVMMEM_mmio_dm, /* Reads and write go to the device model */
#if __XEN_INTERFACE_VERSION__ < 0x00040700
HVMMEM_mmio_write_dm, /* Read-only; writes go to the device model */
#else
HVMMEM_unused, /* Placeholder; setting memory to this type
will fail for code after 4.7.0 */
#endif
HVMMEM_ioreq_server /* Memory type claimed by an ioreq server; type
changes to this value are only allowed after
an ioreq server has claimed its ownership.
Only pages with HVMMEM_ram_rw are allowed to
change to this type; conversely, pages with
this type are only allowed to be changed back
to HVMMEM_ram_rw. */
} hvmmem_type_t;
#endif /* XEN_GENERATING_COMPAT_HEADERS */
/* Hint from PV drivers for pagetable destruction. */
#define HVMOP_pagetable_dying 9
struct xen_hvm_pagetable_dying {
/* Domain with a pagetable about to be destroyed. */
domid_t domid;
uint16_t pad[3]; /* align next field on 8-byte boundary */
/* guest physical address of the toplevel pagetable dying */
uint64_t gpa;
};
typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_pagetable_dying_t);
/* Get the current Xen time, in nanoseconds since system boot. */
#define HVMOP_get_time 10
struct xen_hvm_get_time {
uint64_t now; /* OUT */
};
typedef struct xen_hvm_get_time xen_hvm_get_time_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_time_t);
#define HVMOP_xentrace 11
struct xen_hvm_xentrace {
uint16_t event, extra_bytes;
uint8_t extra[TRACE_EXTRA_MAX * sizeof(uint32_t)];
};
typedef struct xen_hvm_xentrace xen_hvm_xentrace_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_xentrace_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Deprecated by XENMEM_access_op_set_access */
#define HVMOP_set_mem_access 12
/* Deprecated by XENMEM_access_op_get_access */
#define HVMOP_get_mem_access 13
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#define HVMOP_get_mem_type 15
/* Return hvmmem_type_t for the specified pfn. */
struct xen_hvm_get_mem_type {
/* Domain to be queried. */
domid_t domid;
/* OUT variable. */
uint16_t mem_type;
uint16_t pad[2]; /* align next field on 8-byte boundary */
/* IN variable. */
uint64_t pfn;
};
typedef struct xen_hvm_get_mem_type xen_hvm_get_mem_type_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_get_mem_type_t);
/* Following tools-only interfaces may change in future. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/*
* Definitions relating to DMOP_create_ioreq_server. (Defined here for
* backwards compatibility).
*/
#define HVM_IOREQSRV_BUFIOREQ_OFF 0
#define HVM_IOREQSRV_BUFIOREQ_LEGACY 1
/*
* Use this when read_pointer gets updated atomically and
* the pointer pair gets read atomically:
*/
#define HVM_IOREQSRV_BUFIOREQ_ATOMIC 2
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
#if defined(__i386__) || defined(__x86_64__)
/*
* HVMOP_set_evtchn_upcall_vector: Set a <vector> that should be used for event
* channel upcalls on the specified <vcpu>. If set,
* this vector will be used in preference to the
* domain global callback via (see
* HVM_PARAM_CALLBACK_IRQ).
*/
#define HVMOP_set_evtchn_upcall_vector 23
struct xen_hvm_evtchn_upcall_vector {
uint32_t vcpu;
uint8_t vector;
};
typedef struct xen_hvm_evtchn_upcall_vector xen_hvm_evtchn_upcall_vector_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_evtchn_upcall_vector_t);
#endif /* defined(__i386__) || defined(__x86_64__) */
#define HVMOP_guest_request_vm_event 24
/* HVMOP_altp2m: perform altp2m state operations */
#define HVMOP_altp2m 25
#define HVMOP_ALTP2M_INTERFACE_VERSION 0x00000001
struct xen_hvm_altp2m_domain_state {
/* IN or OUT variable on/off */
uint8_t state;
};
typedef struct xen_hvm_altp2m_domain_state xen_hvm_altp2m_domain_state_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_domain_state_t);
struct xen_hvm_altp2m_vcpu_enable_notify {
uint32_t vcpu_id;
uint32_t pad;
/* #VE info area gfn */
uint64_t gfn;
};
typedef struct xen_hvm_altp2m_vcpu_enable_notify xen_hvm_altp2m_vcpu_enable_notify_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_vcpu_enable_notify_t);
struct xen_hvm_altp2m_vcpu_disable_notify {
uint32_t vcpu_id;
};
typedef struct xen_hvm_altp2m_vcpu_disable_notify xen_hvm_altp2m_vcpu_disable_notify_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_vcpu_disable_notify_t);
struct xen_hvm_altp2m_view {
/* IN/OUT variable */
uint16_t view;
uint16_t hvmmem_default_access; /* xenmem_access_t */
};
typedef struct xen_hvm_altp2m_view xen_hvm_altp2m_view_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_view_t);
#if __XEN_INTERFACE_VERSION__ < 0x00040a00
struct xen_hvm_altp2m_set_mem_access {
/* view */
uint16_t view;
/* Memory type */
uint16_t access; /* xenmem_access_t */
uint32_t pad;
/* gfn */
uint64_t gfn;
};
typedef struct xen_hvm_altp2m_set_mem_access xen_hvm_altp2m_set_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_set_mem_access_t);
#endif /* __XEN_INTERFACE_VERSION__ < 0x00040a00 */
struct xen_hvm_altp2m_mem_access {
/* view */
uint16_t view;
/* Memory type */
uint16_t access; /* xenmem_access_t */
uint32_t pad;
/* gfn */
uint64_t gfn;
};
typedef struct xen_hvm_altp2m_mem_access xen_hvm_altp2m_mem_access_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_mem_access_t);
struct xen_hvm_altp2m_set_mem_access_multi {
/* view */
uint16_t view;
uint16_t pad;
/* Number of pages */
uint32_t nr;
/*
* Used for continuation purposes.
* Must be set to zero upon initial invocation.
*/
uint64_t opaque;
/* List of pfns to set access for */
XEN_GUEST_HANDLE(const_uint64) pfn_list;
/* Corresponding list of access settings for pfn_list */
XEN_GUEST_HANDLE(const_uint8) access_list;
};
struct xen_hvm_altp2m_change_gfn {
/* view */
uint16_t view;
uint16_t pad1;
uint32_t pad2;
/* old gfn */
uint64_t old_gfn;
/* new gfn, INVALID_GFN (~0UL) means revert */
uint64_t new_gfn;
};
typedef struct xen_hvm_altp2m_change_gfn xen_hvm_altp2m_change_gfn_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_change_gfn_t);
struct xen_hvm_altp2m_get_vcpu_p2m_idx {
uint32_t vcpu_id;
uint16_t altp2m_idx;
};
struct xen_hvm_altp2m_set_visibility {
uint16_t altp2m_idx;
uint8_t visible;
uint8_t pad;
};
struct xen_hvm_altp2m_op {
uint32_t version; /* HVMOP_ALTP2M_INTERFACE_VERSION */
uint32_t cmd;
/* Get/set the altp2m state for a domain */
#define HVMOP_altp2m_get_domain_state 1
#define HVMOP_altp2m_set_domain_state 2
/* Set a given VCPU to receive altp2m event notifications */
#define HVMOP_altp2m_vcpu_enable_notify 3
/* Create a new view */
#define HVMOP_altp2m_create_p2m 4
/* Destroy a view */
#define HVMOP_altp2m_destroy_p2m 5
/* Switch view for an entire domain */
#define HVMOP_altp2m_switch_p2m 6
/* Notify that a page of memory is to have specific access types */
#define HVMOP_altp2m_set_mem_access 7
/* Change a p2m entry to have a different gfn->mfn mapping */
#define HVMOP_altp2m_change_gfn 8
/* Set access for an array of pages */
#define HVMOP_altp2m_set_mem_access_multi 9
/* Set the "Suppress #VE" bit on a page */
#define HVMOP_altp2m_set_suppress_ve 10
/* Get the "Suppress #VE" bit of a page */
#define HVMOP_altp2m_get_suppress_ve 11
/* Get the access of a page of memory from a certain view */
#define HVMOP_altp2m_get_mem_access 12
/* Disable altp2m event notifications for a given VCPU */
#define HVMOP_altp2m_vcpu_disable_notify 13
/* Get the active vcpu p2m index */
#define HVMOP_altp2m_get_p2m_idx 14
/* Set the "Supress #VE" bit for a range of pages */
#define HVMOP_altp2m_set_suppress_ve_multi 15
/* Set visibility for a given altp2m view */
#define HVMOP_altp2m_set_visibility 16
domid_t domain;
uint16_t pad1;
uint32_t pad2;
union {
struct xen_hvm_altp2m_domain_state domain_state;
struct xen_hvm_altp2m_vcpu_enable_notify enable_notify;
struct xen_hvm_altp2m_view view;
#if __XEN_INTERFACE_VERSION__ < 0x00040a00
struct xen_hvm_altp2m_set_mem_access set_mem_access;
#endif /* __XEN_INTERFACE_VERSION__ < 0x00040a00 */
struct xen_hvm_altp2m_mem_access mem_access;
struct xen_hvm_altp2m_change_gfn change_gfn;
struct xen_hvm_altp2m_set_mem_access_multi set_mem_access_multi;
struct xen_hvm_altp2m_suppress_ve suppress_ve;
struct xen_hvm_altp2m_suppress_ve_multi suppress_ve_multi;
struct xen_hvm_altp2m_vcpu_disable_notify disable_notify;
struct xen_hvm_altp2m_get_vcpu_p2m_idx get_vcpu_p2m_idx;
struct xen_hvm_altp2m_set_visibility set_visibility;
uint8_t pad[64];
} u;
};
typedef struct xen_hvm_altp2m_op xen_hvm_altp2m_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_hvm_altp2m_op_t);
#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2007, Keir Fraser
*/
#ifndef __XEN_PUBLIC_HVM_PARAMS_H__
#define __XEN_PUBLIC_HVM_PARAMS_H__
#include "hvm_op.h"
/* These parameters are deprecated and their meaning is undefined. */
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#define HVM_PARAM_PAE_ENABLED 4
#define HVM_PARAM_DM_DOMAIN 13
#define HVM_PARAM_MEMORY_EVENT_CR0 20
#define HVM_PARAM_MEMORY_EVENT_CR3 21
#define HVM_PARAM_MEMORY_EVENT_CR4 22
#define HVM_PARAM_MEMORY_EVENT_INT3 23
#define HVM_PARAM_NESTEDHVM 24
#define HVM_PARAM_MEMORY_EVENT_SINGLE_STEP 25
#define HVM_PARAM_BUFIOREQ_EVTCHN 26
#define HVM_PARAM_MEMORY_EVENT_MSR 30
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
/*
* Parameter space for HVMOP_{set,get}_param.
*/
#define HVM_PARAM_CALLBACK_IRQ 0
#define HVM_PARAM_CALLBACK_IRQ_TYPE_MASK xen_mk_ullong(0xFF00000000000000)
/*
* How should CPU0 event-channel notifications be delivered?
*
* If val == 0 then CPU0 event-channel notifications are not delivered.
* If val != 0, val[63:56] encodes the type, as follows:
*/
#define HVM_PARAM_CALLBACK_TYPE_GSI 0
/*
* val[55:0] is a delivery GSI. GSI 0 cannot be used, as it aliases val == 0,
* and disables all notifications.
*/
#define HVM_PARAM_CALLBACK_TYPE_PCI_INTX 1
/*
* val[55:0] is a delivery PCI INTx line:
* Domain = val[47:32], Bus = val[31:16] DevFn = val[15:8], IntX = val[1:0]
*/
#if defined(__i386__) || defined(__x86_64__)
#define HVM_PARAM_CALLBACK_TYPE_VECTOR 2
/*
* val[7:0] is a vector number. Check for XENFEAT_hvm_callback_vector to know
* if this delivery method is available.
*/
#elif defined(__arm__) || defined(__aarch64__)
#define HVM_PARAM_CALLBACK_TYPE_PPI 2
/*
* val[55:16] needs to be zero.
* val[15:8] is interrupt flag of the PPI used by event-channel:
* bit 8: the PPI is edge(1) or level(0) triggered
* bit 9: the PPI is active low(1) or high(0)
* val[7:0] is a PPI number used by event-channel.
* This is only used by ARM/ARM64 and masking/eoi the interrupt associated to
* the notification is handled by the interrupt controller.
*/
#define HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_MASK 0xFF00
#define HVM_PARAM_CALLBACK_TYPE_PPI_FLAG_LOW_LEVEL 2
#endif
/*
* These are not used by Xen. They are here for convenience of HVM-guest
* xenbus implementations.
*/
#define HVM_PARAM_STORE_PFN 1
#define HVM_PARAM_STORE_EVTCHN 2
#define HVM_PARAM_IOREQ_PFN 5
#define HVM_PARAM_BUFIOREQ_PFN 6
#if defined(__i386__) || defined(__x86_64__)
/*
* Viridian enlightenments
*
* (See http://download.microsoft.com/download/A/B/4/AB43A34E-BDD0-4FA6-BDEF-79EEF16E880B/Hypervisor%20Top%20Level%20Functional%20Specification%20v4.0.docx)
*
* To expose viridian enlightenments to the guest set this parameter
* to the desired feature mask. The base feature set must be present
* in any valid feature mask.
*/
#define HVM_PARAM_VIRIDIAN 9
/* Base+Freq viridian feature sets:
*
* - Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL)
* - APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
* - Virtual Processor index MSR (HV_X64_MSR_VP_INDEX)
* - Timer frequency MSRs (HV_X64_MSR_TSC_FREQUENCY and
* HV_X64_MSR_APIC_FREQUENCY)
*/
#define _HVMPV_base_freq 0
#define HVMPV_base_freq (1 << _HVMPV_base_freq)
/* Feature set modifications */
/* Disable timer frequency MSRs (HV_X64_MSR_TSC_FREQUENCY and
* HV_X64_MSR_APIC_FREQUENCY).
* This modification restores the viridian feature set to the
* original 'base' set exposed in releases prior to Xen 4.4.
*/
#define _HVMPV_no_freq 1
#define HVMPV_no_freq (1 << _HVMPV_no_freq)
/* Enable Partition Time Reference Counter (HV_X64_MSR_TIME_REF_COUNT) */
#define _HVMPV_time_ref_count 2
#define HVMPV_time_ref_count (1 << _HVMPV_time_ref_count)
/* Enable Reference TSC Page (HV_X64_MSR_REFERENCE_TSC) */
#define _HVMPV_reference_tsc 3
#define HVMPV_reference_tsc (1 << _HVMPV_reference_tsc)
/* Use Hypercall for remote TLB flush */
#define _HVMPV_hcall_remote_tlb_flush 4
#define HVMPV_hcall_remote_tlb_flush (1 << _HVMPV_hcall_remote_tlb_flush)
/* Use APIC assist */
#define _HVMPV_apic_assist 5
#define HVMPV_apic_assist (1 << _HVMPV_apic_assist)
/* Enable crash MSRs */
#define _HVMPV_crash_ctl 6
#define HVMPV_crash_ctl (1 << _HVMPV_crash_ctl)
/* Enable SYNIC MSRs */
#define _HVMPV_synic 7
#define HVMPV_synic (1 << _HVMPV_synic)
/* Enable STIMER MSRs */
#define _HVMPV_stimer 8
#define HVMPV_stimer (1 << _HVMPV_stimer)
/* Use Synthetic Cluster IPI Hypercall */
#define _HVMPV_hcall_ipi 9
#define HVMPV_hcall_ipi (1 << _HVMPV_hcall_ipi)
/* Enable ExProcessorMasks */
#define _HVMPV_ex_processor_masks 10
#define HVMPV_ex_processor_masks (1 << _HVMPV_ex_processor_masks)
/* Allow more than 64 VPs */
#define _HVMPV_no_vp_limit 11
#define HVMPV_no_vp_limit (1 << _HVMPV_no_vp_limit)
/* Enable vCPU hotplug */
#define _HVMPV_cpu_hotplug 12
#define HVMPV_cpu_hotplug (1 << _HVMPV_cpu_hotplug)
#define HVMPV_feature_mask \
(HVMPV_base_freq | \
HVMPV_no_freq | \
HVMPV_time_ref_count | \
HVMPV_reference_tsc | \
HVMPV_hcall_remote_tlb_flush | \
HVMPV_apic_assist | \
HVMPV_crash_ctl | \
HVMPV_synic | \
HVMPV_stimer | \
HVMPV_hcall_ipi | \
HVMPV_ex_processor_masks | \
HVMPV_no_vp_limit | \
HVMPV_cpu_hotplug)
#endif
/*
* Set mode for virtual timers (currently x86 only):
* delay_for_missed_ticks (default):
* Do not advance a vcpu's time beyond the correct delivery time for
* interrupts that have been missed due to preemption. Deliver missed
* interrupts when the vcpu is rescheduled and advance the vcpu's virtual
* time stepwise for each one.
* no_delay_for_missed_ticks:
* As above, missed interrupts are delivered, but guest time always tracks
* wallclock (i.e., real) time while doing so.
* no_missed_ticks_pending:
* No missed interrupts are held pending. Instead, to ensure ticks are
* delivered at some non-zero rate, if we detect missed ticks then the
* internal tick alarm is not disabled if the VCPU is preempted during the
* next tick period.
* one_missed_tick_pending:
* Missed interrupts are collapsed together and delivered as one 'late tick'.
* Guest time always tracks wallclock (i.e., real) time.
*/
#define HVM_PARAM_TIMER_MODE 10
#define HVMPTM_delay_for_missed_ticks 0
#define HVMPTM_no_delay_for_missed_ticks 1
#define HVMPTM_no_missed_ticks_pending 2
#define HVMPTM_one_missed_tick_pending 3
/* Boolean: Enable virtual HPET (high-precision event timer)? (x86-only) */
#define HVM_PARAM_HPET_ENABLED 11
/* Identity-map page directory used by Intel EPT when CR0.PG=0. */
#define HVM_PARAM_IDENT_PT 12
/* ACPI S state: currently support S0 and S3 on x86. */
#define HVM_PARAM_ACPI_S_STATE 14
/* TSS used on Intel when CR0.PE=0. */
#define HVM_PARAM_VM86_TSS 15
/* Boolean: Enable aligning all periodic vpts to reduce interrupts */
#define HVM_PARAM_VPT_ALIGN 16
/* Console debug shared memory ring and event channel */
#define HVM_PARAM_CONSOLE_PFN 17
#define HVM_PARAM_CONSOLE_EVTCHN 18
/*
* Select location of ACPI PM1a and TMR control blocks. Currently two locations
* are supported, specified by version 0 or 1 in this parameter:
* - 0: default, use the old addresses
* PM1A_EVT == 0x1f40; PM1A_CNT == 0x1f44; PM_TMR == 0x1f48
* - 1: use the new default qemu addresses
* PM1A_EVT == 0xb000; PM1A_CNT == 0xb004; PM_TMR == 0xb008
* You can find these address definitions in <hvm/ioreq.h>
*/
#define HVM_PARAM_ACPI_IOPORTS_LOCATION 19
/* Params for the mem event rings */
#define HVM_PARAM_PAGING_RING_PFN 27
#define HVM_PARAM_MONITOR_RING_PFN 28
#define HVM_PARAM_SHARING_RING_PFN 29
/* SHUTDOWN_* action in case of a triple fault */
#define HVM_PARAM_TRIPLE_FAULT_REASON 31
#define HVM_PARAM_IOREQ_SERVER_PFN 32
#define HVM_PARAM_NR_IOREQ_SERVER_PAGES 33
/* Location of the VM Generation ID in guest physical address space. */
#define HVM_PARAM_VM_GENERATION_ID_ADDR 34
/*
* Set mode for altp2m:
* disabled: don't activate altp2m (default)
* mixed: allow access to all altp2m ops for both in-guest and external tools
* external: allow access to external privileged tools only
* limited: guest only has limited access (ie. control VMFUNC and #VE)
*
* Note that 'mixed' mode has not been evaluated for safety from a
* security perspective. Before using this mode in a
* security-critical environment, each subop should be evaluated for
* safety, with unsafe subops blacklisted in XSM.
*/
#define HVM_PARAM_ALTP2M 35
#define XEN_ALTP2M_disabled 0
#define XEN_ALTP2M_mixed 1
#define XEN_ALTP2M_external 2
#define XEN_ALTP2M_limited 3
/*
* Size of the x87 FPU FIP/FDP registers that the hypervisor needs to
* save/restore. This is a workaround for a hardware limitation that
* does not allow the full FIP/FDP and FCS/FDS to be restored.
*
* Valid values are:
*
* 8: save/restore 64-bit FIP/FDP and clear FCS/FDS (default if CPU
* has FPCSDS feature).
*
* 4: save/restore 32-bit FIP/FDP, FCS/FDS, and clear upper 32-bits of
* FIP/FDP.
*
* 0: allow hypervisor to choose based on the value of FIP/FDP
* (default if CPU does not have FPCSDS).
*
* If FPCSDS (bit 13 in CPUID leaf 0x7, subleaf 0x0) is set, the CPU
* never saves FCS/FDS and this parameter should be left at the
* default of 8.
*/
#define HVM_PARAM_X87_FIP_WIDTH 36
/*
* TSS (and its size) used on Intel when CR0.PE=0. The address occupies
* the low 32 bits, while the size is in the high 32 ones.
*/
#define HVM_PARAM_VM86_TSS_SIZED 37
/* Enable MCA capabilities. */
#define HVM_PARAM_MCA_CAP 38
#define XEN_HVM_MCA_CAP_LMCE (xen_mk_ullong(1) << 0)
#define XEN_HVM_MCA_CAP_MASK XEN_HVM_MCA_CAP_LMCE
#define HVM_NR_PARAMS 39
#endif /* __XEN_PUBLIC_HVM_PARAMS_H__ */

14
include/hw/xen/interface/io/blkif.h
View File

@ -118,7 +118,7 @@
*
* The underlying storage is not affected by the direct IO memory
* lifetime bug. See:
* http://lists.xen.org/archives/html/xen-devel/2012-12/msg01154.html
* https://lists.xen.org/archives/html/xen-devel/2012-12/msg01154.html
*
* Therefore this option gives the backend permission to use
* O_DIRECT, notwithstanding that bug.
@ -341,7 +341,7 @@
* access (even when it should be read-only). If the frontend hits the
* maximum number of allowed persistently mapped grants, it can fallback
* to non persistent mode. This will cause a performance degradation,
* since the backend driver will still try to map those grants
* since the the backend driver will still try to map those grants
* persistently. Since the persistent grants protocol is compatible with
* the previous protocol, a frontend driver can choose to work in
* persistent mode even when the backend doesn't support it.
@ -710,3 +710,13 @@ DEFINE_RING_TYPES(blkif, struct blkif_request, struct blkif_response);
#define VDISK_READONLY 0x4
#endif /* __XEN_PUBLIC_IO_BLKIF_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

10
include/hw/xen/interface/io/console.h
View File

@ -44,3 +44,13 @@ DEFINE_XEN_FLEX_RING(xencons);
#endif
#endif /* __XEN_PUBLIC_IO_CONSOLE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

20
include/hw/xen/interface/io/fbif.h
View File

@ -153,4 +153,24 @@ struct xenfb_page
unsigned long pd[256];
};
/*
* Wart: xenkbd needs to know default resolution. Put it here until a
* better solution is found, but don't leak it to the backend.
*/
#ifdef __KERNEL__
#define XENFB_WIDTH 800
#define XENFB_HEIGHT 600
#define XENFB_DEPTH 32
#endif
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

10
include/hw/xen/interface/io/kbdif.h
View File

@ -564,3 +564,13 @@ struct xenkbd_page
};
#endif /* __XEN_PUBLIC_IO_KBDIF_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

94
include/hw/xen/interface/io/netif.h
View File

@ -171,7 +171,7 @@
* The ability of the backend to use a control ring is advertised by
* setting:
*
* /local/domain/X/backend/<domid>/<vif>/feature-ctrl-ring = "1"
* /local/domain/X/backend/vif/<domid>/<vif>/feature-ctrl-ring = "1"
*
* The frontend provides a control ring to the backend by setting:
*
@ -190,6 +190,32 @@
* order as requests.
*/
/*
* Link state
* ==========
*
* The backend can advertise its current link (carrier) state to the
* frontend using the /local/domain/X/backend/vif/<domid>/<vif>/carrier
* node. If this node is not present, then the frontend should assume that
* the link is up (for compatibility with backends that do not implement
* this feature). If this node is present, then a value of "0" should be
* interpreted by the frontend as the link being down (no carrier) and a
* value of "1" should be interpreted as the link being up (carrier
* present).
*/
/*
* MTU
* ===
*
* The toolstack may set a value of MTU for the frontend by setting the
* /local/domain/<domid>/device/vif/<vif>/mtu node with the MTU value in
* octets. If this node is absent the frontend should assume an MTU value
* of 1500 octets. A frontend is also at liberty to ignore this value so
* it is only suitable for informing the frontend that a packet payload
* >1500 octets is permitted.
*/
/*
* Hash types
* ==========
@ -267,6 +293,62 @@
#define XEN_NETIF_CTRL_HASH_ALGORITHM_TOEPLITZ 1
/*
* This algorithm uses a 'key' as well as the data buffer itself.
* (Buffer[] and Key[] are treated as shift-registers where the MSB of
* Buffer/Key[0] is considered 'left-most' and the LSB of Buffer/Key[N-1]
* is the 'right-most').
*
* Value = 0
* For number of bits in Buffer[]
* If (left-most bit of Buffer[] is 1)
* Value ^= left-most 32 bits of Key[]
* Key[] << 1
* Buffer[] << 1
*
* The code below is provided for convenience where an operating system
* does not already provide an implementation.
*/
#ifdef XEN_NETIF_DEFINE_TOEPLITZ
static uint32_t xen_netif_toeplitz_hash(const uint8_t *key,
unsigned int keylen,
const uint8_t *buf,
unsigned int buflen)
{
unsigned int keyi, bufi;
uint64_t prefix = 0;
uint64_t hash = 0;
/* Pre-load prefix with the first 8 bytes of the key */
for (keyi = 0; keyi < 8; keyi++) {
prefix <<= 8;
prefix |= (keyi < keylen) ? key[keyi] : 0;
}
for (bufi = 0; bufi < buflen; bufi++) {
uint8_t byte = buf[bufi];
unsigned int bit;
for (bit = 0; bit < 8; bit++) {
if (byte & 0x80)
hash ^= prefix;
prefix <<= 1;
byte <<=1;
}
/*
* 'prefix' has now been left-shifted by 8, so
* OR in the next byte.
*/
prefix |= (keyi < keylen) ? key[keyi] : 0;
keyi++;
}
/* The valid part of the hash is in the upper 32 bits. */
return hash >> 32;
}
#endif /* XEN_NETIF_DEFINE_TOEPLITZ */
/*
* Control requests (struct xen_netif_ctrl_request)
* ================================================
@ -1008,3 +1090,13 @@ DEFINE_RING_TYPES(netif_rx, struct netif_rx_request, struct netif_rx_response);
#define NETIF_RSP_NULL 1
#endif
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

99
include/hw/xen/interface/io/ring.h
View File

@ -1,6 +1,6 @@
/******************************************************************************
* ring.h
*
*
* Shared producer-consumer ring macros.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
@ -33,13 +33,6 @@
* - standard integers types (uint8_t, uint16_t, etc)
* They are provided by stdint.h of the standard headers.
*
* Before using the different macros, you need to provide the following
* macros:
* - xen_mb() a memory barrier
* - xen_rmb() a read memory barrier
* - xen_wmb() a write memory barrier
* Example of those can be found in xenctrl.h.
*
* In addition, if you intend to use the FLEX macros, you also need to
* provide the following, before invoking the FLEX macros:
* - size_t
@ -49,6 +42,14 @@
* and grant_table.h from the Xen public headers.
*/
#include "../xen-compat.h"
#if __XEN_INTERFACE_VERSION__ < 0x00030208
#define xen_mb() mb()
#define xen_rmb() rmb()
#define xen_wmb() wmb()
#endif
typedef unsigned int RING_IDX;
/* Round a 32-bit unsigned constant down to the nearest power of two. */
@ -61,12 +62,12 @@ typedef unsigned int RING_IDX;
/*
* Calculate size of a shared ring, given the total available space for the
* ring and indexes (_sz), and the name tag of the request/response structure.
* A ring contains as many entries as will fit, rounded down to the nearest
* A ring contains as many entries as will fit, rounded down to the nearest
* power of two (so we can mask with (size-1) to loop around).
*/
#define __CONST_RING_SIZE(_s, _sz) \
(__RD32(((_sz) - offsetof(struct _s##_sring, ring)) / \
sizeof_field(struct _s##_sring, ring[0])))
sizeof(((struct _s##_sring *)0)->ring[0])))
/*
* The same for passing in an actual pointer instead of a name tag.
*/
@ -75,7 +76,7 @@ typedef unsigned int RING_IDX;
/*
* Macros to make the correct C datatypes for a new kind of ring.
*
*
* To make a new ring datatype, you need to have two message structures,
* let's say request_t, and response_t already defined.
*
@ -85,7 +86,7 @@ typedef unsigned int RING_IDX;
*
* These expand out to give you a set of types, as you can see below.
* The most important of these are:
*
*
* mytag_sring_t - The shared ring.
* mytag_front_ring_t - The 'front' half of the ring.
* mytag_back_ring_t - The 'back' half of the ring.
@ -153,15 +154,15 @@ typedef struct __name##_back_ring __name##_back_ring_t
/*
* Macros for manipulating rings.
*
* FRONT_RING_whatever works on the "front end" of a ring: here
*
* FRONT_RING_whatever works on the "front end" of a ring: here
* requests are pushed on to the ring and responses taken off it.
*
* BACK_RING_whatever works on the "back end" of a ring: here
*
* BACK_RING_whatever works on the "back end" of a ring: here
* requests are taken off the ring and responses put on.
*
* N.B. these macros do NO INTERLOCKS OR FLOW CONTROL.
* This is OK in 1-for-1 request-response situations where the
*
* N.B. these macros do NO INTERLOCKS OR FLOW CONTROL.
* This is OK in 1-for-1 request-response situations where the
* requestor (front end) never has more than RING_SIZE()-1
* outstanding requests.
*/
@ -174,20 +175,24 @@ typedef struct __name##_back_ring __name##_back_ring_t
(void)memset((_s)->__pad, 0, sizeof((_s)->__pad)); \
} while(0)
#define FRONT_RING_INIT(_r, _s, __size) do { \
(_r)->req_prod_pvt = 0; \
(_r)->rsp_cons = 0; \
#define FRONT_RING_ATTACH(_r, _s, _i, __size) do { \
(_r)->req_prod_pvt = (_i); \
(_r)->rsp_cons = (_i); \
(_r)->nr_ents = __RING_SIZE(_s, __size); \
(_r)->sring = (_s); \
} while (0)
#define BACK_RING_INIT(_r, _s, __size) do { \
(_r)->rsp_prod_pvt = 0; \
(_r)->req_cons = 0; \
#define FRONT_RING_INIT(_r, _s, __size) FRONT_RING_ATTACH(_r, _s, 0, __size)
#define BACK_RING_ATTACH(_r, _s, _i, __size) do { \
(_r)->rsp_prod_pvt = (_i); \
(_r)->req_cons = (_i); \
(_r)->nr_ents = __RING_SIZE(_s, __size); \
(_r)->sring = (_s); \
} while (0)
#define BACK_RING_INIT(_r, _s, __size) BACK_RING_ATTACH(_r, _s, 0, __size)
/* How big is this ring? */
#define RING_SIZE(_r) \
((_r)->nr_ents)
@ -206,33 +211,45 @@ typedef struct __name##_back_ring __name##_back_ring_t
#define RING_HAS_UNCONSUMED_RESPONSES(_r) \
((_r)->sring->rsp_prod - (_r)->rsp_cons)
#ifdef __GNUC__
#define RING_HAS_UNCONSUMED_REQUESTS(_r) ({ \
unsigned int req = (_r)->sring->req_prod - (_r)->req_cons; \
unsigned int rsp = RING_SIZE(_r) - \
((_r)->req_cons - (_r)->rsp_prod_pvt); \
req < rsp ? req : rsp; \
})
#else
/* Same as above, but without the nice GCC ({ ... }) syntax. */
#define RING_HAS_UNCONSUMED_REQUESTS(_r) \
((((_r)->sring->req_prod - (_r)->req_cons) < \
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt))) ? \
((_r)->sring->req_prod - (_r)->req_cons) : \
(RING_SIZE(_r) - ((_r)->req_cons - (_r)->rsp_prod_pvt)))
#endif
/* Direct access to individual ring elements, by index. */
#define RING_GET_REQUEST(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].req))
#define RING_GET_RESPONSE(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
/*
* Get a local copy of a request.
* Get a local copy of a request/response.
*
* Use this in preference to RING_GET_REQUEST() so all processing is
* Use this in preference to RING_GET_{REQUEST,RESPONSE}() so all processing is
* done on a local copy that cannot be modified by the other end.
*
* Note that https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 may cause this
* to be ineffective where _req is a struct which consists of only bitfields.
* to be ineffective where dest is a struct which consists of only bitfields.
*/
#define RING_COPY_REQUEST(_r, _idx, _req) do { \
/* Use volatile to force the copy into _req. */ \
*(_req) = *(volatile typeof(_req))RING_GET_REQUEST(_r, _idx); \
#define RING_COPY_(type, r, idx, dest) do { \
/* Use volatile to force the copy into dest. */ \
*(dest) = *(volatile __typeof__(dest))RING_GET_##type(r, idx); \
} while (0)
#define RING_GET_RESPONSE(_r, _idx) \
(&((_r)->sring->ring[((_idx) & (RING_SIZE(_r) - 1))].rsp))
#define RING_COPY_REQUEST(r, idx, req) RING_COPY_(REQUEST, r, idx, req)
#define RING_COPY_RESPONSE(r, idx, rsp) RING_COPY_(RESPONSE, r, idx, rsp)
/* Loop termination condition: Would the specified index overflow the ring? */
#define RING_REQUEST_CONS_OVERFLOW(_r, _cons) \
@ -242,6 +259,10 @@ typedef struct __name##_back_ring __name##_back_ring_t
#define RING_REQUEST_PROD_OVERFLOW(_r, _prod) \
(((_prod) - (_r)->rsp_prod_pvt) > RING_SIZE(_r))
/* Ill-behaved backend determination: Can there be this many responses? */
#define RING_RESPONSE_PROD_OVERFLOW(_r, _prod) \
(((_prod) - (_r)->rsp_cons) > RING_SIZE(_r))
#define RING_PUSH_REQUESTS(_r) do { \
xen_wmb(); /* back sees requests /before/ updated producer index */ \
(_r)->sring->req_prod = (_r)->req_prod_pvt; \
@ -254,26 +275,26 @@ typedef struct __name##_back_ring __name##_back_ring_t
/*
* Notification hold-off (req_event and rsp_event):
*
*
* When queueing requests or responses on a shared ring, it may not always be
* necessary to notify the remote end. For example, if requests are in flight
* in a backend, the front may be able to queue further requests without
* notifying the back (if the back checks for new requests when it queues
* responses).
*
*
* When enqueuing requests or responses:
*
*
* Use RING_PUSH_{REQUESTS,RESPONSES}_AND_CHECK_NOTIFY(). The second argument
* is a boolean return value. True indicates that the receiver requires an
* asynchronous notification.
*
*
* After dequeuing requests or responses (before sleeping the connection):
*
*
* Use RING_FINAL_CHECK_FOR_REQUESTS() or RING_FINAL_CHECK_FOR_RESPONSES().
* The second argument is a boolean return value. True indicates that there
* are pending messages on the ring (i.e., the connection should not be put
* to sleep).
*
*
* These macros will set the req_event/rsp_event field to trigger a
* notification on the very next message that is enqueued. If you want to
* create batches of work (i.e., only receive a notification after several

353
include/hw/xen/interface/io/usbif.h
View File

@ -32,6 +32,34 @@
#include "../grant_table.h"
/*
* Detailed Interface Description
* ==============================
* The pvUSB interface is using a split driver design: a frontend driver in
* the guest and a backend driver in a driver domain (normally dom0) having
* access to the physical USB device(s) being passed to the guest.
*
* The frontend and backend drivers use XenStore to initiate the connection
* between them, the I/O activity is handled via two shared ring pages and an
* event channel. As the interface between frontend and backend is at the USB
* host connector level, multiple (up to 31) physical USB devices can be
* handled by a single connection.
*
* The Xen pvUSB device name is "qusb", so the frontend's XenStore entries are
* to be found under "device/qusb", while the backend's XenStore entries are
* under "backend/<guest-dom-id>/qusb".
*
* When a new pvUSB connection is established, the frontend needs to setup the
* two shared ring pages for communication and the event channel. The ring
* pages need to be made available to the backend via the grant table
* interface.
*
* One of the shared ring pages is used by the backend to inform the frontend
* about USB device plug events (device to be added or removed). This is the
* "conn-ring".
*
* The other ring page is used for USB I/O communication (requests and
* responses). This is the "urb-ring".
*
* Feature and Parameter Negotiation
* =================================
* The two halves of a Xen pvUSB driver utilize nodes within the XenStore to
@ -99,130 +127,273 @@
* The machine ABI rules governing the format of all ring request and
* response structures.
*
* Protocol Description
* ====================
*
*-------------------------- USB device plug events --------------------------
*
* USB device plug events are send via the "conn-ring" shared page. As only
* events are being sent, the respective requests from the frontend to the
* backend are just dummy ones.
* The events sent to the frontend have the following layout:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | id | portnum | speed | 4
* +----------------+----------------+----------------+----------------+
* id - uint16_t, event id (taken from the actual frontend dummy request)
* portnum - uint8_t, port number (1 ... 31)
* speed - uint8_t, device USBIF_SPEED_*, USBIF_SPEED_NONE == unplug
*
* The dummy request:
* 0 1 octet
* +----------------+----------------+
* | id | 2
* +----------------+----------------+
* id - uint16_t, guest supplied value (no need for being unique)
*
*-------------------------- USB I/O request ---------------------------------
*
* A single USB I/O request on the "urb-ring" has the following layout:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | id | nr_buffer_segs | 4
* +----------------+----------------+----------------+----------------+
* | pipe | 8
* +----------------+----------------+----------------+----------------+
* | transfer_flags | buffer_length | 12
* +----------------+----------------+----------------+----------------+
* | request type specific | 16
* | data | 20
* +----------------+----------------+----------------+----------------+
* | seg[0] | 24
* | data | 28
* +----------------+----------------+----------------+----------------+
* |/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/|
* +----------------+----------------+----------------+----------------+
* | seg[USBIF_MAX_SEGMENTS_PER_REQUEST - 1] | 144
* | data | 148
* +----------------+----------------+----------------+----------------+
* Bit field bit number 0 is always least significant bit, undefined bits must
* be zero.
* id - uint16_t, guest supplied value
* nr_buffer_segs - uint16_t, number of segment entries in seg[] array
* pipe - uint32_t, bit field with multiple information:
* bits 0-4: port request to send to
* bit 5: unlink request with specified id (cancel I/O) if set (see below)
* bit 7: direction (1 = read from device)
* bits 8-14: device number on port
* bits 15-18: endpoint of device
* bits 30-31: request type: 00 = isochronous, 01 = interrupt,
* 10 = control, 11 = bulk
* transfer_flags - uint16_t, bit field with processing flags:
* bit 0: less data than specified allowed
* buffer_length - uint16_t, total length of data
* request type specific data - 8 bytes, see below
* seg[] - array with 8 byte elements, see below
*
* Request type specific data for isochronous request:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | interval | start_frame | 4
* +----------------+----------------+----------------+----------------+
* | number_of_packets | nr_frame_desc_segs | 8
* +----------------+----------------+----------------+----------------+
* interval - uint16_t, time interval in msecs between frames
* start_frame - uint16_t, start frame number
* number_of_packets - uint16_t, number of packets to transfer
* nr_frame_desc_segs - uint16_t number of seg[] frame descriptors elements
*
* Request type specific data for interrupt request:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | interval | 0 | 4
* +----------------+----------------+----------------+----------------+
* | 0 | 8
* +----------------+----------------+----------------+----------------+
* interval - uint16_t, time in msecs until interruption
*
* Request type specific data for control request:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | data of setup packet | 4
* | | 8
* +----------------+----------------+----------------+----------------+
*
* Request type specific data for bulk request:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | 0 | 4
* | 0 | 8
* +----------------+----------------+----------------+----------------+
*
* Request type specific data for unlink request:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | unlink_id | 0 | 4
* +----------------+----------------+----------------+----------------+
* | 0 | 8
* +----------------+----------------+----------------+----------------+
* unlink_id - uint16_t, request id of request to terminate
*
* seg[] array element layout:
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | gref | 4
* +----------------+----------------+----------------+----------------+
* | offset | length | 8
* +----------------+----------------+----------------+----------------+
* gref - uint32_t, grant reference of buffer page
* offset - uint16_t, offset of buffer start in page
* length - uint16_t, length of buffer in page
*
*-------------------------- USB I/O response --------------------------------
*
* 0 1 2 3 octet
* +----------------+----------------+----------------+----------------+
* | id | start_frame | 4
* +----------------+----------------+----------------+----------------+
* | status | 8
* +----------------+----------------+----------------+----------------+
* | actual_length | 12
* +----------------+----------------+----------------+----------------+
* | error_count | 16
* +----------------+----------------+----------------+----------------+
* id - uint16_t, id of the request this response belongs to
* start_frame - uint16_t, start_frame this response (iso requests only)
* status - int32_t, USBIF_STATUS_* (non-iso requests)
* actual_length - uint32_t, actual size of data transferred
* error_count - uint32_t, number of errors (iso requests)
*/
enum usb_spec_version {
USB_VER_UNKNOWN = 0,
USB_VER_USB11,
USB_VER_USB20,
USB_VER_USB30, /* not supported yet */
USB_VER_UNKNOWN = 0,
USB_VER_USB11,
USB_VER_USB20,
USB_VER_USB30, /* not supported yet */
};
/*
* USB pipe in usbif_request
*
* - port number: bits 0-4
* (USB_MAXCHILDREN is 31)
* - port number: bits 0-4
* (USB_MAXCHILDREN is 31)
*
* - operation flag: bit 5
* (0 = submit urb,
* 1 = unlink urb)
* - operation flag: bit 5
* (0 = submit urb,
* 1 = unlink urb)
*
* - direction: bit 7
* (0 = Host-to-Device [Out]
* 1 = Device-to-Host [In])
* - direction: bit 7
* (0 = Host-to-Device [Out]
* 1 = Device-to-Host [In])
*
* - device address: bits 8-14
* - device address: bits 8-14
*
* - endpoint: bits 15-18
* - endpoint: bits 15-18
*
* - pipe type: bits 30-31
* (00 = isochronous, 01 = interrupt,
* 10 = control, 11 = bulk)
* - pipe type: bits 30-31
* (00 = isochronous, 01 = interrupt,
* 10 = control, 11 = bulk)
*/
#define USBIF_PIPE_PORT_MASK 0x0000001f
#define USBIF_PIPE_UNLINK 0x00000020
#define USBIF_PIPE_DIR 0x00000080
#define USBIF_PIPE_DEV_MASK 0x0000007f
#define USBIF_PIPE_DEV_SHIFT 8
#define USBIF_PIPE_EP_MASK 0x0000000f
#define USBIF_PIPE_EP_SHIFT 15
#define USBIF_PIPE_TYPE_MASK 0x00000003
#define USBIF_PIPE_TYPE_SHIFT 30
#define USBIF_PIPE_TYPE_ISOC 0
#define USBIF_PIPE_TYPE_INT 1
#define USBIF_PIPE_TYPE_CTRL 2
#define USBIF_PIPE_TYPE_BULK 3
#define USBIF_PIPE_PORT_MASK 0x0000001f
#define USBIF_PIPE_UNLINK 0x00000020
#define USBIF_PIPE_DIR 0x00000080
#define USBIF_PIPE_DEV_MASK 0x0000007f
#define USBIF_PIPE_DEV_SHIFT 8
#define USBIF_PIPE_EP_MASK 0x0000000f
#define USBIF_PIPE_EP_SHIFT 15
#define USBIF_PIPE_TYPE_MASK 0x00000003
#define USBIF_PIPE_TYPE_SHIFT 30
#define USBIF_PIPE_TYPE_ISOC 0
#define USBIF_PIPE_TYPE_INT 1
#define USBIF_PIPE_TYPE_CTRL 2
#define USBIF_PIPE_TYPE_BULK 3
#define usbif_pipeportnum(pipe) ((pipe) & USBIF_PIPE_PORT_MASK)
#define usbif_setportnum_pipe(pipe, portnum) ((pipe) | (portnum))
#define usbif_pipeportnum(pipe) ((pipe) & USBIF_PIPE_PORT_MASK)
#define usbif_setportnum_pipe(pipe, portnum) ((pipe) | (portnum))
#define usbif_pipeunlink(pipe) ((pipe) & USBIF_PIPE_UNLINK)
#define usbif_pipesubmit(pipe) (!usbif_pipeunlink(pipe))
#define usbif_setunlink_pipe(pipe) ((pipe) | USBIF_PIPE_UNLINK)
#define usbif_pipeunlink(pipe) ((pipe) & USBIF_PIPE_UNLINK)
#define usbif_pipesubmit(pipe) (!usbif_pipeunlink(pipe))
#define usbif_setunlink_pipe(pipe) ((pipe) | USBIF_PIPE_UNLINK)
#define usbif_pipein(pipe) ((pipe) & USBIF_PIPE_DIR)
#define usbif_pipeout(pipe) (!usbif_pipein(pipe))
#define usbif_pipein(pipe) ((pipe) & USBIF_PIPE_DIR)
#define usbif_pipeout(pipe) (!usbif_pipein(pipe))
#define usbif_pipedevice(pipe) \
(((pipe) >> USBIF_PIPE_DEV_SHIFT) & USBIF_PIPE_DEV_MASK)
#define usbif_pipedevice(pipe) \
(((pipe) >> USBIF_PIPE_DEV_SHIFT) & USBIF_PIPE_DEV_MASK)
#define usbif_pipeendpoint(pipe) \
(((pipe) >> USBIF_PIPE_EP_SHIFT) & USBIF_PIPE_EP_MASK)
#define usbif_pipeendpoint(pipe) \
(((pipe) >> USBIF_PIPE_EP_SHIFT) & USBIF_PIPE_EP_MASK)
#define usbif_pipetype(pipe) \
(((pipe) >> USBIF_PIPE_TYPE_SHIFT) & USBIF_PIPE_TYPE_MASK)
#define usbif_pipeisoc(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_ISOC)
#define usbif_pipeint(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_INT)
#define usbif_pipectrl(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_CTRL)
#define usbif_pipebulk(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_BULK)
#define usbif_pipetype(pipe) \
(((pipe) >> USBIF_PIPE_TYPE_SHIFT) & USBIF_PIPE_TYPE_MASK)
#define usbif_pipeisoc(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_ISOC)
#define usbif_pipeint(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_INT)
#define usbif_pipectrl(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_CTRL)
#define usbif_pipebulk(pipe) (usbif_pipetype(pipe) == USBIF_PIPE_TYPE_BULK)
#define USBIF_MAX_SEGMENTS_PER_REQUEST (16)
#define USBIF_MAX_PORTNR 31
#define USBIF_RING_SIZE 4096
#define USBIF_MAX_PORTNR 31
#define USBIF_RING_SIZE 4096
/*
* RING for transferring urbs.
*/
struct usbif_request_segment {
grant_ref_t gref;
uint16_t offset;
uint16_t length;
grant_ref_t gref;
uint16_t offset;
uint16_t length;
};
struct usbif_urb_request {
uint16_t id; /* request id */
uint16_t nr_buffer_segs; /* number of urb->transfer_buffer segments */
uint16_t id; /* request id */
uint16_t nr_buffer_segs; /* number of urb->transfer_buffer segments */
/* basic urb parameter */
uint32_t pipe;
uint16_t transfer_flags;
#define USBIF_SHORT_NOT_OK 0x0001
uint16_t buffer_length;
union {
uint8_t ctrl[8]; /* setup_packet (Ctrl) */
/* basic urb parameter */
uint32_t pipe;
uint16_t transfer_flags;
#define USBIF_SHORT_NOT_OK 0x0001
uint16_t buffer_length;
union {
uint8_t ctrl[8]; /* setup_packet (Ctrl) */
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t start_frame; /* start frame */
uint16_t number_of_packets; /* number of ISO packet */
uint16_t nr_frame_desc_segs; /* number of iso_frame_desc segments */
} isoc;
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t start_frame; /* start frame */
uint16_t number_of_packets; /* number of ISO packet */
uint16_t nr_frame_desc_segs; /* number of iso_frame_desc segments */
} isoc;
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t pad[3];
} intr;
struct {
uint16_t interval; /* maximum (1024*8) in usb core */
uint16_t pad[3];
} intr;
struct {
uint16_t unlink_id; /* unlink request id */
uint16_t pad[3];
} unlink;
struct {
uint16_t unlink_id; /* unlink request id */
uint16_t pad[3];
} unlink;
} u;
} u;
/* urb data segments */
struct usbif_request_segment seg[USBIF_MAX_SEGMENTS_PER_REQUEST];
/* urb data segments */
struct usbif_request_segment seg[USBIF_MAX_SEGMENTS_PER_REQUEST];
};
typedef struct usbif_urb_request usbif_urb_request_t;
struct usbif_urb_response {
uint16_t id; /* request id */
uint16_t start_frame; /* start frame (ISO) */
int32_t status; /* status (non-ISO) */
int32_t actual_length; /* actual transfer length */
int32_t error_count; /* number of ISO errors */
uint16_t id; /* request id */
uint16_t start_frame; /* start frame (ISO) */
int32_t status; /* status (non-ISO) */
#define USBIF_STATUS_OK 0
#define USBIF_STATUS_NODEV (-19)
#define USBIF_STATUS_INVAL (-22)
#define USBIF_STATUS_STALL (-32)
#define USBIF_STATUS_IOERROR (-71)
#define USBIF_STATUS_BABBLE (-75)
#define USBIF_STATUS_SHUTDOWN (-108)
int32_t actual_length; /* actual transfer length */
int32_t error_count; /* number of ISO errors */
};
typedef struct usbif_urb_response usbif_urb_response_t;
@ -233,18 +404,18 @@ DEFINE_RING_TYPES(usbif_urb, struct usbif_urb_request, struct usbif_urb_response
* RING for notifying connect/disconnect events to frontend
*/
struct usbif_conn_request {
uint16_t id;
uint16_t id;
};
typedef struct usbif_conn_request usbif_conn_request_t;
struct usbif_conn_response {
uint16_t id; /* request id */
uint8_t portnum; /* port number */
uint8_t speed; /* usb_device_speed */
#define USBIF_SPEED_NONE 0
#define USBIF_SPEED_LOW 1
#define USBIF_SPEED_FULL 2
#define USBIF_SPEED_HIGH 3
uint16_t id; /* request id */
uint8_t portnum; /* port number */
uint8_t speed; /* usb_device_speed */
#define USBIF_SPEED_NONE 0
#define USBIF_SPEED_LOW 1
#define USBIF_SPEED_FULL 2
#define USBIF_SPEED_HIGH 3
};
typedef struct usbif_conn_response usbif_conn_response_t;

10
include/hw/xen/interface/io/xenbus.h
View File

@ -68,3 +68,13 @@ enum xenbus_state {
typedef enum xenbus_state XenbusState;
#endif /* _XEN_PUBLIC_IO_XENBUS_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

153
include/hw/xen/interface/io/xs_wire.h Normal file
View File

@ -0,0 +1,153 @@
/*
* Details of the "wire" protocol between Xen Store Daemon and client
* library or guest kernel.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (C) 2005 Rusty Russell IBM Corporation
*/
#ifndef _XS_WIRE_H
#define _XS_WIRE_H
enum xsd_sockmsg_type
{
XS_CONTROL,
#define XS_DEBUG XS_CONTROL
XS_DIRECTORY,
XS_READ,
XS_GET_PERMS,
XS_WATCH,
XS_UNWATCH,
XS_TRANSACTION_START,
XS_TRANSACTION_END,
XS_INTRODUCE,
XS_RELEASE,
XS_GET_DOMAIN_PATH,
XS_WRITE,
XS_MKDIR,
XS_RM,
XS_SET_PERMS,
XS_WATCH_EVENT,
XS_ERROR,
XS_IS_DOMAIN_INTRODUCED,
XS_RESUME,
XS_SET_TARGET,
/* XS_RESTRICT has been removed */
XS_RESET_WATCHES = XS_SET_TARGET + 2,
XS_DIRECTORY_PART,
XS_TYPE_COUNT, /* Number of valid types. */
XS_INVALID = 0xffff /* Guaranteed to remain an invalid type */
};
#define XS_WRITE_NONE "NONE"
#define XS_WRITE_CREATE "CREATE"
#define XS_WRITE_CREATE_EXCL "CREATE|EXCL"
/* We hand errors as strings, for portability. */
struct xsd_errors
{
int errnum;
const char *errstring;
};
#ifdef EINVAL
#define XSD_ERROR(x) { x, #x }
/* LINTED: static unused */
static struct xsd_errors xsd_errors[]
#if defined(__GNUC__)
__attribute__((unused))
#endif
= {
XSD_ERROR(EINVAL),
XSD_ERROR(EACCES),
XSD_ERROR(EEXIST),
XSD_ERROR(EISDIR),
XSD_ERROR(ENOENT),
XSD_ERROR(ENOMEM),
XSD_ERROR(ENOSPC),
XSD_ERROR(EIO),
XSD_ERROR(ENOTEMPTY),
XSD_ERROR(ENOSYS),
XSD_ERROR(EROFS),
XSD_ERROR(EBUSY),
XSD_ERROR(EAGAIN),
XSD_ERROR(EISCONN),
XSD_ERROR(E2BIG)
};
#endif
struct xsd_sockmsg
{
uint32_t type; /* XS_??? */
uint32_t req_id;/* Request identifier, echoed in daemon's response. */
uint32_t tx_id; /* Transaction id (0 if not related to a transaction). */
uint32_t len; /* Length of data following this. */
/* Generally followed by nul-terminated string(s). */
};
enum xs_watch_type
{
XS_WATCH_PATH = 0,
XS_WATCH_TOKEN
};
/*
* `incontents 150 xenstore_struct XenStore wire protocol.
*
* Inter-domain shared memory communications. */
#define XENSTORE_RING_SIZE 1024
typedef uint32_t XENSTORE_RING_IDX;
#define MASK_XENSTORE_IDX(idx) ((idx) & (XENSTORE_RING_SIZE-1))
struct xenstore_domain_interface {
char req[XENSTORE_RING_SIZE]; /* Requests to xenstore daemon. */
char rsp[XENSTORE_RING_SIZE]; /* Replies and async watch events. */
XENSTORE_RING_IDX req_cons, req_prod;
XENSTORE_RING_IDX rsp_cons, rsp_prod;
uint32_t server_features; /* Bitmap of features supported by the server */
uint32_t connection;
};
/* Violating this is very bad. See docs/misc/xenstore.txt. */
#define XENSTORE_PAYLOAD_MAX 4096
/* Violating these just gets you an error back */
#define XENSTORE_ABS_PATH_MAX 3072
#define XENSTORE_REL_PATH_MAX 2048
/* The ability to reconnect a ring */
#define XENSTORE_SERVER_FEATURE_RECONNECTION 1
/* Valid values for the connection field */
#define XENSTORE_CONNECTED 0 /* the steady-state */
#define XENSTORE_RECONNECT 1 /* guest has initiated a reconnect */
#endif /* _XS_WIRE_H */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

754
include/hw/xen/interface/memory.h Normal file
View File

@ -0,0 +1,754 @@
/******************************************************************************
* memory.h
*
* Memory reservation and information.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_MEMORY_H__
#define __XEN_PUBLIC_MEMORY_H__
#include "xen.h"
#include "physdev.h"
/*
* Increase or decrease the specified domain's memory reservation. Returns the
* number of extents successfully allocated or freed.
* arg == addr of struct xen_memory_reservation.
*/
#define XENMEM_increase_reservation 0
#define XENMEM_decrease_reservation 1
#define XENMEM_populate_physmap 6
#if __XEN_INTERFACE_VERSION__ >= 0x00030209
/*
* Maximum # bits addressable by the user of the allocated region (e.g., I/O
* devices often have a 32-bit limitation even in 64-bit systems). If zero
* then the user has no addressing restriction. This field is not used by
* XENMEM_decrease_reservation.
*/
#define XENMEMF_address_bits(x) (x)
#define XENMEMF_get_address_bits(x) ((x) & 0xffu)
/* NUMA node to allocate from. */
#define XENMEMF_node(x) (((x) + 1) << 8)
#define XENMEMF_get_node(x) ((((x) >> 8) - 1) & 0xffu)
/* Flag to populate physmap with populate-on-demand entries */
#define XENMEMF_populate_on_demand (1<<16)
/* Flag to request allocation only from the node specified */
#define XENMEMF_exact_node_request (1<<17)
#define XENMEMF_exact_node(n) (XENMEMF_node(n) | XENMEMF_exact_node_request)
/* Flag to indicate the node specified is virtual node */
#define XENMEMF_vnode (1<<18)
#endif
struct xen_memory_reservation {
/*
* XENMEM_increase_reservation:
* OUT: MFN (*not* GMFN) bases of extents that were allocated
* XENMEM_decrease_reservation:
* IN: GMFN bases of extents to free
* XENMEM_populate_physmap:
* IN: GPFN bases of extents to populate with memory
* OUT: GMFN bases of extents that were allocated
* (NB. This command also updates the mach_to_phys translation table)
* XENMEM_claim_pages:
* IN: must be zero
*/
XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
/* Number of extents, and size/alignment of each (2^extent_order pages). */
xen_ulong_t nr_extents;
unsigned int extent_order;
#if __XEN_INTERFACE_VERSION__ >= 0x00030209
/* XENMEMF flags. */
unsigned int mem_flags;
#else
unsigned int address_bits;
#endif
/*
* Domain whose reservation is being changed.
* Unprivileged domains can specify only DOMID_SELF.
*/
domid_t domid;
};
typedef struct xen_memory_reservation xen_memory_reservation_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_reservation_t);
/*
* An atomic exchange of memory pages. If return code is zero then
* @out.extent_list provides GMFNs of the newly-allocated memory.
* Returns zero on complete success, otherwise a negative error code.
* On complete success then always @nr_exchanged == @in.nr_extents.
* On partial success @nr_exchanged indicates how much work was done.
*
* Note that only PV guests can use this operation.
*/
#define XENMEM_exchange 11
struct xen_memory_exchange {
/*
* [IN] Details of memory extents to be exchanged (GMFN bases).
* Note that @in.address_bits is ignored and unused.
*/
struct xen_memory_reservation in;
/*
* [IN/OUT] Details of new memory extents.
* We require that:
* 1. @in.domid == @out.domid
* 2. @in.nr_extents << @in.extent_order ==
* @out.nr_extents << @out.extent_order
* 3. @in.extent_start and @out.extent_start lists must not overlap
* 4. @out.extent_start lists GPFN bases to be populated
* 5. @out.extent_start is overwritten with allocated GMFN bases
*/
struct xen_memory_reservation out;
/*
* [OUT] Number of input extents that were successfully exchanged:
* 1. The first @nr_exchanged input extents were successfully
* deallocated.
* 2. The corresponding first entries in the output extent list correctly
* indicate the GMFNs that were successfully exchanged.
* 3. All other input and output extents are untouched.
* 4. If not all input exents are exchanged then the return code of this
* command will be non-zero.
* 5. THIS FIELD MUST BE INITIALISED TO ZERO BY THE CALLER!
*/
xen_ulong_t nr_exchanged;
};
typedef struct xen_memory_exchange xen_memory_exchange_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_exchange_t);
/*
* Returns the maximum machine frame number of mapped RAM in this system.
* This command always succeeds (it never returns an error code).
* arg == NULL.
*/
#define XENMEM_maximum_ram_page 2
struct xen_memory_domain {
/* [IN] Domain information is being queried for. */
domid_t domid;
};
/*
* Returns the current or maximum memory reservation, in pages, of the
* specified domain (may be DOMID_SELF). Returns -ve errcode on failure.
* arg == addr of struct xen_memory_domain.
*/
#define XENMEM_current_reservation 3
#define XENMEM_maximum_reservation 4
/*
* Returns the maximum GFN in use by the specified domain (may be DOMID_SELF).
* Returns -ve errcode on failure.
* arg == addr of struct xen_memory_domain.
*/
#define XENMEM_maximum_gpfn 14
/*
* Returns a list of MFN bases of 2MB extents comprising the machine_to_phys
* mapping table. Architectures which do not have a m2p table do not implement
* this command.
* arg == addr of xen_machphys_mfn_list_t.
*/
#define XENMEM_machphys_mfn_list 5
struct xen_machphys_mfn_list {
/*
* Size of the 'extent_start' array. Fewer entries will be filled if the
* machphys table is smaller than max_extents * 2MB.
*/
unsigned int max_extents;
/*
* Pointer to buffer to fill with list of extent starts. If there are
* any large discontiguities in the machine address space, 2MB gaps in
* the machphys table will be represented by an MFN base of zero.
*/
XEN_GUEST_HANDLE(xen_pfn_t) extent_start;
/*
* Number of extents written to the above array. This will be smaller
* than 'max_extents' if the machphys table is smaller than max_e * 2MB.
*/
unsigned int nr_extents;
};
typedef struct xen_machphys_mfn_list xen_machphys_mfn_list_t;
DEFINE_XEN_GUEST_HANDLE(xen_machphys_mfn_list_t);
/*
* For a compat caller, this is identical to XENMEM_machphys_mfn_list.
*
* For a non compat caller, this functions similarly to
* XENMEM_machphys_mfn_list, but returns the mfns making up the compatibility
* m2p table.
*/
#define XENMEM_machphys_compat_mfn_list 25
/*
* Returns the location in virtual address space of the machine_to_phys
* mapping table. Architectures which do not have a m2p table, or which do not
* map it by default into guest address space, do not implement this command.
* arg == addr of xen_machphys_mapping_t.
*/
#define XENMEM_machphys_mapping 12
struct xen_machphys_mapping {
xen_ulong_t v_start, v_end; /* Start and end virtual addresses. */
xen_ulong_t max_mfn; /* Maximum MFN that can be looked up. */
};
typedef struct xen_machphys_mapping xen_machphys_mapping_t;
DEFINE_XEN_GUEST_HANDLE(xen_machphys_mapping_t);
/* Source mapping space. */
/* ` enum phys_map_space { */
#define XENMAPSPACE_shared_info 0 /* shared info page */
#define XENMAPSPACE_grant_table 1 /* grant table page */
#define XENMAPSPACE_gmfn 2 /* GMFN */
#define XENMAPSPACE_gmfn_range 3 /* GMFN range, XENMEM_add_to_physmap only. */
#define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom,
* XENMEM_add_to_physmap_batch only. */
#define XENMAPSPACE_dev_mmio 5 /* device mmio region
ARM only; the region is mapped in
Stage-2 using the Normal Memory
Inner/Outer Write-Back Cacheable
memory attribute. */
/* ` } */
/*
* Sets the GPFN at which a particular page appears in the specified guest's
* physical address space (translated guests only).
* arg == addr of xen_add_to_physmap_t.
*/
#define XENMEM_add_to_physmap 7
struct xen_add_to_physmap {
/* Which domain to change the mapping for. */
domid_t domid;
/* Number of pages to go through for gmfn_range */
uint16_t size;
unsigned int space; /* => enum phys_map_space */
#define XENMAPIDX_grant_table_status 0x80000000
/* Index into space being mapped. */
xen_ulong_t idx;
/* GPFN in domid where the source mapping page should appear. */
xen_pfn_t gpfn;
};
typedef struct xen_add_to_physmap xen_add_to_physmap_t;
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_t);
/* A batched version of add_to_physmap. */
#define XENMEM_add_to_physmap_batch 23
struct xen_add_to_physmap_batch {
/* IN */
/* Which domain to change the mapping for. */
domid_t domid;
uint16_t space; /* => enum phys_map_space */
/* Number of pages to go through */
uint16_t size;
#if __XEN_INTERFACE_VERSION__ < 0x00040700
domid_t foreign_domid; /* IFF gmfn_foreign. Should be 0 for other spaces. */
#else
union xen_add_to_physmap_batch_extra {
domid_t foreign_domid; /* gmfn_foreign */
uint16_t res0; /* All the other spaces. Should be 0 */
} u;
#endif
/* Indexes into space being mapped. */
XEN_GUEST_HANDLE(xen_ulong_t) idxs;
/* GPFN in domid where the source mapping page should appear. */
XEN_GUEST_HANDLE(xen_pfn_t) gpfns;
/* OUT */
/* Per index error code. */
XEN_GUEST_HANDLE(int) errs;
};
typedef struct xen_add_to_physmap_batch xen_add_to_physmap_batch_t;
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_batch_t);
#if __XEN_INTERFACE_VERSION__ < 0x00040400
#define XENMEM_add_to_physmap_range XENMEM_add_to_physmap_batch
#define xen_add_to_physmap_range xen_add_to_physmap_batch
typedef struct xen_add_to_physmap_batch xen_add_to_physmap_range_t;
DEFINE_XEN_GUEST_HANDLE(xen_add_to_physmap_range_t);
#endif
/*
* Unmaps the page appearing at a particular GPFN from the specified guest's
* physical address space (translated guests only).
* arg == addr of xen_remove_from_physmap_t.
*/
#define XENMEM_remove_from_physmap 15
struct xen_remove_from_physmap {
/* Which domain to change the mapping for. */
domid_t domid;
/* GPFN of the current mapping of the page. */
xen_pfn_t gpfn;
};
typedef struct xen_remove_from_physmap xen_remove_from_physmap_t;
DEFINE_XEN_GUEST_HANDLE(xen_remove_from_physmap_t);
/*** REMOVED ***/
/*#define XENMEM_translate_gpfn_list 8*/
/*
* Returns the pseudo-physical memory map as it was when the domain
* was started (specified by XENMEM_set_memory_map).
* arg == addr of xen_memory_map_t.
*/
#define XENMEM_memory_map 9
struct xen_memory_map {
/*
* On call the number of entries which can be stored in buffer. On
* return the number of entries which have been stored in
* buffer.
*/
unsigned int nr_entries;
/*
* Entries in the buffer are in the same format as returned by the
* BIOS INT 0x15 EAX=0xE820 call.
*/
XEN_GUEST_HANDLE(void) buffer;
};
typedef struct xen_memory_map xen_memory_map_t;
DEFINE_XEN_GUEST_HANDLE(xen_memory_map_t);
/*
* Returns the real physical memory map. Passes the same structure as
* XENMEM_memory_map.
* Specifying buffer as NULL will return the number of entries required
* to store the complete memory map.
* arg == addr of xen_memory_map_t.
*/
#define XENMEM_machine_memory_map 10
/*
* Set the pseudo-physical memory map of a domain, as returned by
* XENMEM_memory_map.
* arg == addr of xen_foreign_memory_map_t.
*/
#define XENMEM_set_memory_map 13
struct xen_foreign_memory_map {
domid_t domid;
struct xen_memory_map map;
};
typedef struct xen_foreign_memory_map xen_foreign_memory_map_t;
DEFINE_XEN_GUEST_HANDLE(xen_foreign_memory_map_t);
#define XENMEM_set_pod_target 16
#define XENMEM_get_pod_target 17
struct xen_pod_target {
/* IN */
uint64_t target_pages;
/* OUT */
uint64_t tot_pages;
uint64_t pod_cache_pages;
uint64_t pod_entries;
/* IN */
domid_t domid;
};
typedef struct xen_pod_target xen_pod_target_t;
#if defined(__XEN__) || defined(__XEN_TOOLS__)
#ifndef uint64_aligned_t
#define uint64_aligned_t uint64_t
#endif
/*
* Get the number of MFNs saved through memory sharing.
* The call never fails.
*/
#define XENMEM_get_sharing_freed_pages 18
#define XENMEM_get_sharing_shared_pages 19
#define XENMEM_paging_op 20
#define XENMEM_paging_op_nominate 0
#define XENMEM_paging_op_evict 1
#define XENMEM_paging_op_prep 2
struct xen_mem_paging_op {
uint8_t op; /* XENMEM_paging_op_* */
domid_t domain;
/* IN: (XENMEM_paging_op_prep) buffer to immediately fill page from */
XEN_GUEST_HANDLE_64(const_uint8) buffer;
/* IN: gfn of page being operated on */
uint64_aligned_t gfn;
};
typedef struct xen_mem_paging_op xen_mem_paging_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_paging_op_t);
#define XENMEM_access_op 21
#define XENMEM_access_op_set_access 0
#define XENMEM_access_op_get_access 1
/*
* XENMEM_access_op_enable_emulate and XENMEM_access_op_disable_emulate are
* currently unused, but since they have been in use please do not reuse them.
*
* #define XENMEM_access_op_enable_emulate 2
* #define XENMEM_access_op_disable_emulate 3
*/
#define XENMEM_access_op_set_access_multi 4
typedef enum {
XENMEM_access_n,
XENMEM_access_r,
XENMEM_access_w,
XENMEM_access_rw,
XENMEM_access_x,
XENMEM_access_rx,
XENMEM_access_wx,
XENMEM_access_rwx,
/*
* Page starts off as r-x, but automatically
* change to r-w on a write
*/
XENMEM_access_rx2rw,
/*
* Log access: starts off as n, automatically
* goes to rwx, generating an event without
* pausing the vcpu
*/
XENMEM_access_n2rwx,
/* Take the domain default */
XENMEM_access_default
} xenmem_access_t;
struct xen_mem_access_op {
/* XENMEM_access_op_* */
uint8_t op;
/* xenmem_access_t */
uint8_t access;
domid_t domid;
/*
* Number of pages for set op (or size of pfn_list for
* XENMEM_access_op_set_access_multi)
* Ignored on setting default access and other ops
*/
uint32_t nr;
/*
* First pfn for set op
* pfn for get op
* ~0ull is used to set and get the default access for pages
*/
uint64_aligned_t pfn;
/*
* List of pfns to set access for
* Used only with XENMEM_access_op_set_access_multi
*/
XEN_GUEST_HANDLE(const_uint64) pfn_list;
/*
* Corresponding list of access settings for pfn_list
* Used only with XENMEM_access_op_set_access_multi
*/
XEN_GUEST_HANDLE(const_uint8) access_list;
};
typedef struct xen_mem_access_op xen_mem_access_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_access_op_t);
#define XENMEM_sharing_op 22
#define XENMEM_sharing_op_nominate_gfn 0
#define XENMEM_sharing_op_nominate_gref 1
#define XENMEM_sharing_op_share 2
#define XENMEM_sharing_op_debug_gfn 3
#define XENMEM_sharing_op_debug_mfn 4
#define XENMEM_sharing_op_debug_gref 5
#define XENMEM_sharing_op_add_physmap 6
#define XENMEM_sharing_op_audit 7
#define XENMEM_sharing_op_range_share 8
#define XENMEM_sharing_op_fork 9
#define XENMEM_sharing_op_fork_reset 10
#define XENMEM_SHARING_OP_S_HANDLE_INVALID (-10)
#define XENMEM_SHARING_OP_C_HANDLE_INVALID (-9)
/* The following allows sharing of grant refs. This is useful
* for sharing utilities sitting as "filters" in IO backends
* (e.g. memshr + blktap(2)). The IO backend is only exposed
* to grant references, and this allows sharing of the grefs */
#define XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG (xen_mk_ullong(1) << 62)
#define XENMEM_SHARING_OP_FIELD_MAKE_GREF(field, val) \
(field) = (XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG | val)
#define XENMEM_SHARING_OP_FIELD_IS_GREF(field) \
((field) & XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG)
#define XENMEM_SHARING_OP_FIELD_GET_GREF(field) \
((field) & (~XENMEM_SHARING_OP_FIELD_IS_GREF_FLAG))
struct xen_mem_sharing_op {
uint8_t op; /* XENMEM_sharing_op_* */
domid_t domain;
union {
struct mem_sharing_op_nominate { /* OP_NOMINATE_xxx */
union {
uint64_aligned_t gfn; /* IN: gfn to nominate */
uint32_t grant_ref; /* IN: grant ref to nominate */
} u;
uint64_aligned_t handle; /* OUT: the handle */
} nominate;
struct mem_sharing_op_share { /* OP_SHARE/ADD_PHYSMAP */
uint64_aligned_t source_gfn; /* IN: the gfn of the source page */
uint64_aligned_t source_handle; /* IN: handle to the source page */
uint64_aligned_t client_gfn; /* IN: the client gfn */
uint64_aligned_t client_handle; /* IN: handle to the client page */
domid_t client_domain; /* IN: the client domain id */
} share;
struct mem_sharing_op_range { /* OP_RANGE_SHARE */
uint64_aligned_t first_gfn; /* IN: the first gfn */
uint64_aligned_t last_gfn; /* IN: the last gfn */
uint64_aligned_t opaque; /* Must be set to 0 */
domid_t client_domain; /* IN: the client domain id */
uint16_t _pad[3]; /* Must be set to 0 */
} range;
struct mem_sharing_op_debug { /* OP_DEBUG_xxx */
union {
uint64_aligned_t gfn; /* IN: gfn to debug */
uint64_aligned_t mfn; /* IN: mfn to debug */
uint32_t gref; /* IN: gref to debug */
} u;
} debug;
struct mem_sharing_op_fork { /* OP_FORK */
domid_t parent_domain; /* IN: parent's domain id */
/* Only makes sense for short-lived forks */
#define XENMEM_FORK_WITH_IOMMU_ALLOWED (1u << 0)
/* Only makes sense for short-lived forks */
#define XENMEM_FORK_BLOCK_INTERRUPTS (1u << 1)
uint16_t flags; /* IN: optional settings */
uint32_t pad; /* Must be set to 0 */
} fork;
} u;
};
typedef struct xen_mem_sharing_op xen_mem_sharing_op_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_sharing_op_t);
/*
* Attempt to stake a claim for a domain on a quantity of pages
* of system RAM, but _not_ assign specific pageframes. Only
* arithmetic is performed so the hypercall is very fast and need
* not be preemptible, thus sidestepping time-of-check-time-of-use
* races for memory allocation. Returns 0 if the hypervisor page
* allocator has atomically and successfully claimed the requested
* number of pages, else non-zero.
*
* Any domain may have only one active claim. When sufficient memory
* has been allocated to resolve the claim, the claim silently expires.
* Claiming zero pages effectively resets any outstanding claim and
* is always successful.
*
* Note that a valid claim may be staked even after memory has been
* allocated for a domain. In this case, the claim is not incremental,
* i.e. if the domain's total page count is 3, and a claim is staked
* for 10, only 7 additional pages are claimed.
*
* Caller must be privileged or the hypercall fails.
*/
#define XENMEM_claim_pages 24
/*
* XENMEM_claim_pages flags - the are no flags at this time.
* The zero value is appropriate.
*/
/*
* With some legacy devices, certain guest-physical addresses cannot safely
* be used for other purposes, e.g. to map guest RAM. This hypercall
* enumerates those regions so the toolstack can avoid using them.
*/
#define XENMEM_reserved_device_memory_map 27
struct xen_reserved_device_memory {
xen_pfn_t start_pfn;
xen_ulong_t nr_pages;
};
typedef struct xen_reserved_device_memory xen_reserved_device_memory_t;
DEFINE_XEN_GUEST_HANDLE(xen_reserved_device_memory_t);
struct xen_reserved_device_memory_map {
#define XENMEM_RDM_ALL 1 /* Request all regions (ignore dev union). */
/* IN */
uint32_t flags;
/*
* IN/OUT
*
* Gets set to the required number of entries when too low,
* signaled by error code -ERANGE.
*/
unsigned int nr_entries;
/* OUT */
XEN_GUEST_HANDLE(xen_reserved_device_memory_t) buffer;
/* IN */
union {
physdev_pci_device_t pci;
} dev;
};
typedef struct xen_reserved_device_memory_map xen_reserved_device_memory_map_t;
DEFINE_XEN_GUEST_HANDLE(xen_reserved_device_memory_map_t);
#endif /* defined(__XEN__) || defined(__XEN_TOOLS__) */
/*
* Get the pages for a particular guest resource, so that they can be
* mapped directly by a tools domain.
*/
#define XENMEM_acquire_resource 28
struct xen_mem_acquire_resource {
/* IN - The domain whose resource is to be mapped */
domid_t domid;
/* IN - the type of resource */
uint16_t type;
#define XENMEM_resource_ioreq_server 0
#define XENMEM_resource_grant_table 1
#define XENMEM_resource_vmtrace_buf 2
/*
* IN - a type-specific resource identifier, which must be zero
* unless stated otherwise.
*
* type == XENMEM_resource_ioreq_server -> id == ioreq server id
* type == XENMEM_resource_grant_table -> id defined below
*/
uint32_t id;
#define XENMEM_resource_grant_table_id_shared 0
#define XENMEM_resource_grant_table_id_status 1
/*
* IN/OUT
*
* As an IN parameter number of frames of the resource to be mapped.
* This value may be updated over the course of the operation.
*
* When frame_list is NULL and nr_frames is 0, this is interpreted as a
* request for the size of the resource, which shall be returned in the
* nr_frames field.
*
* The size of a resource will never be zero, but a nonzero result doesn't
* guarantee that a subsequent mapping request will be successful. There
* are further type/id specific constraints which may change between the
* two calls.
*/
uint32_t nr_frames;
uint32_t pad;
/*
* IN - the index of the initial frame to be mapped. This parameter
* is ignored if nr_frames is 0. This value may be updated
* over the course of the operation.
*/
uint64_t frame;
#define XENMEM_resource_ioreq_server_frame_bufioreq 0
#define XENMEM_resource_ioreq_server_frame_ioreq(n) (1 + (n))
/*
* IN/OUT - If the tools domain is PV then, upon return, frame_list
* will be populated with the MFNs of the resource.
* If the tools domain is HVM then it is expected that, on
* entry, frame_list will be populated with a list of GFNs
* that will be mapped to the MFNs of the resource.
* If -EIO is returned then the frame_list has only been
* partially mapped and it is up to the caller to unmap all
* the GFNs.
* This parameter may be NULL if nr_frames is 0. This
* value may be updated over the course of the operation.
*/
XEN_GUEST_HANDLE(xen_pfn_t) frame_list;
};
typedef struct xen_mem_acquire_resource xen_mem_acquire_resource_t;
DEFINE_XEN_GUEST_HANDLE(xen_mem_acquire_resource_t);
/*
* XENMEM_get_vnumainfo used by guest to get
* vNUMA topology from hypervisor.
*/
#define XENMEM_get_vnumainfo 26
/* vNUMA node memory ranges */
struct xen_vmemrange {
uint64_t start, end;
unsigned int flags;
unsigned int nid;
};
typedef struct xen_vmemrange xen_vmemrange_t;
DEFINE_XEN_GUEST_HANDLE(xen_vmemrange_t);
/*
* vNUMA topology specifies vNUMA node number, distance table,
* memory ranges and vcpu mapping provided for guests.
* XENMEM_get_vnumainfo hypercall expects to see from guest
* nr_vnodes, nr_vmemranges and nr_vcpus to indicate available memory.
* After filling guests structures, nr_vnodes, nr_vmemranges and nr_vcpus
* copied back to guest. Domain returns expected values of nr_vnodes,
* nr_vmemranges and nr_vcpus to guest if the values where incorrect.
*/
struct xen_vnuma_topology_info {
/* IN */
domid_t domid;
uint16_t pad;
/* IN/OUT */
unsigned int nr_vnodes;
unsigned int nr_vcpus;
unsigned int nr_vmemranges;
/* OUT */
union {
XEN_GUEST_HANDLE(uint) h;
uint64_t pad;
} vdistance;
union {
XEN_GUEST_HANDLE(uint) h;
uint64_t pad;
} vcpu_to_vnode;
union {
XEN_GUEST_HANDLE(xen_vmemrange_t) h;
uint64_t pad;
} vmemrange;
};
typedef struct xen_vnuma_topology_info xen_vnuma_topology_info_t;
DEFINE_XEN_GUEST_HANDLE(xen_vnuma_topology_info_t);
/* Next available subop number is 29 */
#endif /* __XEN_PUBLIC_MEMORY_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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include/hw/xen/interface/physdev.h Normal file
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/*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Keir Fraser
*/
#ifndef __XEN_PUBLIC_PHYSDEV_H__
#define __XEN_PUBLIC_PHYSDEV_H__
#include "xen.h"
/*
* Prototype for this hypercall is:
* int physdev_op(int cmd, void *args)
* @cmd == PHYSDEVOP_??? (physdev operation).
* @args == Operation-specific extra arguments (NULL if none).
*/
/*
* Notify end-of-interrupt (EOI) for the specified IRQ.
* @arg == pointer to physdev_eoi structure.
*/
#define PHYSDEVOP_eoi 12
struct physdev_eoi {
/* IN */
uint32_t irq;
};
typedef struct physdev_eoi physdev_eoi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t);
/*
* Register a shared page for the hypervisor to indicate whether the guest
* must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly
* once the guest used this function in that the associated event channel
* will automatically get unmasked. The page registered is used as a bit
* array indexed by Xen's PIRQ value.
*/
#define PHYSDEVOP_pirq_eoi_gmfn_v1 17
/*
* Register a shared page for the hypervisor to indicate whether the
* guest must issue PHYSDEVOP_eoi. This hypercall is very similar to
* PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of
* PHYSDEVOP_eoi. The page registered is used as a bit array indexed by
* Xen's PIRQ value.
*/
#define PHYSDEVOP_pirq_eoi_gmfn_v2 28
struct physdev_pirq_eoi_gmfn {
/* IN */
xen_pfn_t gmfn;
};
typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t);
/*
* Query the status of an IRQ line.
* @arg == pointer to physdev_irq_status_query structure.
*/
#define PHYSDEVOP_irq_status_query 5
struct physdev_irq_status_query {
/* IN */
uint32_t irq;
/* OUT */
uint32_t flags; /* XENIRQSTAT_* */
};
typedef struct physdev_irq_status_query physdev_irq_status_query_t;
DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t);
/* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */
#define _XENIRQSTAT_needs_eoi (0)
#define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi)
/* IRQ shared by multiple guests? */
#define _XENIRQSTAT_shared (1)
#define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared)
/*
* Set the current VCPU's I/O privilege level.
* @arg == pointer to physdev_set_iopl structure.
*/
#define PHYSDEVOP_set_iopl 6
struct physdev_set_iopl {
/* IN */
uint32_t iopl;
};
typedef struct physdev_set_iopl physdev_set_iopl_t;
DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t);
/*
* Set the current VCPU's I/O-port permissions bitmap.
* @arg == pointer to physdev_set_iobitmap structure.
*/
#define PHYSDEVOP_set_iobitmap 7
struct physdev_set_iobitmap {
/* IN */
#if __XEN_INTERFACE_VERSION__ >= 0x00030205
XEN_GUEST_HANDLE(uint8) bitmap;
#else
uint8_t *bitmap;
#endif
uint32_t nr_ports;
};
typedef struct physdev_set_iobitmap physdev_set_iobitmap_t;
DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t);
/*
* Read or write an IO-APIC register.
* @arg == pointer to physdev_apic structure.
*/
#define PHYSDEVOP_apic_read 8
#define PHYSDEVOP_apic_write 9
struct physdev_apic {
/* IN */
unsigned long apic_physbase;
uint32_t reg;
/* IN or OUT */
uint32_t value;
};
typedef struct physdev_apic physdev_apic_t;
DEFINE_XEN_GUEST_HANDLE(physdev_apic_t);
/*
* Allocate or free a physical upcall vector for the specified IRQ line.
* @arg == pointer to physdev_irq structure.
*/
#define PHYSDEVOP_alloc_irq_vector 10
#define PHYSDEVOP_free_irq_vector 11
struct physdev_irq {
/* IN */
uint32_t irq;
/* IN or OUT */
uint32_t vector;
};
typedef struct physdev_irq physdev_irq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_irq_t);
#define MAP_PIRQ_TYPE_MSI 0x0
#define MAP_PIRQ_TYPE_GSI 0x1
#define MAP_PIRQ_TYPE_UNKNOWN 0x2
#define MAP_PIRQ_TYPE_MSI_SEG 0x3
#define MAP_PIRQ_TYPE_MULTI_MSI 0x4
#define PHYSDEVOP_map_pirq 13
struct physdev_map_pirq {
domid_t domid;
/* IN */
int type;
/* IN (ignored for ..._MULTI_MSI) */
int index;
/* IN or OUT */
int pirq;
/* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */
int bus;
/* IN */
int devfn;
/* IN (also OUT for ..._MULTI_MSI) */
int entry_nr;
/* IN */
uint64_t table_base;
};
typedef struct physdev_map_pirq physdev_map_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t);
#define PHYSDEVOP_unmap_pirq 14
struct physdev_unmap_pirq {
domid_t domid;
/* IN */
int pirq;
};
typedef struct physdev_unmap_pirq physdev_unmap_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t);
#define PHYSDEVOP_manage_pci_add 15
#define PHYSDEVOP_manage_pci_remove 16
struct physdev_manage_pci {
/* IN */
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_manage_pci physdev_manage_pci_t;
DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t);
#define PHYSDEVOP_restore_msi 19
struct physdev_restore_msi {
/* IN */
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_restore_msi physdev_restore_msi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t);
#define PHYSDEVOP_manage_pci_add_ext 20
struct physdev_manage_pci_ext {
/* IN */
uint8_t bus;
uint8_t devfn;
unsigned is_extfn;
unsigned is_virtfn;
struct {
uint8_t bus;
uint8_t devfn;
} physfn;
};
typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t;
DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t);
/*
* Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
* hypercall since 0x00030202.
*/
struct physdev_op {
uint32_t cmd;
union {
physdev_irq_status_query_t irq_status_query;
physdev_set_iopl_t set_iopl;
physdev_set_iobitmap_t set_iobitmap;
physdev_apic_t apic_op;
physdev_irq_t irq_op;
} u;
};
typedef struct physdev_op physdev_op_t;
DEFINE_XEN_GUEST_HANDLE(physdev_op_t);
#define PHYSDEVOP_setup_gsi 21
struct physdev_setup_gsi {
int gsi;
/* IN */
uint8_t triggering;
/* IN */
uint8_t polarity;
/* IN */
};
typedef struct physdev_setup_gsi physdev_setup_gsi_t;
DEFINE_XEN_GUEST_HANDLE(physdev_setup_gsi_t);
/* leave PHYSDEVOP 22 free */
/* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI
* the hypercall returns a free pirq */
#define PHYSDEVOP_get_free_pirq 23
struct physdev_get_free_pirq {
/* IN */
int type;
/* OUT */
uint32_t pirq;
};
typedef struct physdev_get_free_pirq physdev_get_free_pirq_t;
DEFINE_XEN_GUEST_HANDLE(physdev_get_free_pirq_t);
#define XEN_PCI_MMCFG_RESERVED 0x1
#define PHYSDEVOP_pci_mmcfg_reserved 24
struct physdev_pci_mmcfg_reserved {
uint64_t address;
uint16_t segment;
uint8_t start_bus;
uint8_t end_bus;
uint32_t flags;
};
typedef struct physdev_pci_mmcfg_reserved physdev_pci_mmcfg_reserved_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_mmcfg_reserved_t);
#define XEN_PCI_DEV_EXTFN 0x1
#define XEN_PCI_DEV_VIRTFN 0x2
#define XEN_PCI_DEV_PXM 0x4
#define PHYSDEVOP_pci_device_add 25
struct physdev_pci_device_add {
/* IN */
uint16_t seg;
uint8_t bus;
uint8_t devfn;
uint32_t flags;
struct {
uint8_t bus;
uint8_t devfn;
} physfn;
/*
* Optional parameters array.
* First element ([0]) is PXM domain associated with the device (if
* XEN_PCI_DEV_PXM is set)
*/
uint32_t optarr[XEN_FLEX_ARRAY_DIM];
};
typedef struct physdev_pci_device_add physdev_pci_device_add_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t);
#define PHYSDEVOP_pci_device_remove 26
#define PHYSDEVOP_restore_msi_ext 27
/*
* Dom0 should use these two to announce MMIO resources assigned to
* MSI-X capable devices won't (prepare) or may (release) change.
*/
#define PHYSDEVOP_prepare_msix 30
#define PHYSDEVOP_release_msix 31
struct physdev_pci_device {
/* IN */
uint16_t seg;
uint8_t bus;
uint8_t devfn;
};
typedef struct physdev_pci_device physdev_pci_device_t;
DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_t);
#define PHYSDEVOP_DBGP_RESET_PREPARE 1
#define PHYSDEVOP_DBGP_RESET_DONE 2
#define PHYSDEVOP_DBGP_BUS_UNKNOWN 0
#define PHYSDEVOP_DBGP_BUS_PCI 1
#define PHYSDEVOP_dbgp_op 29
struct physdev_dbgp_op {
/* IN */
uint8_t op;
uint8_t bus;
union {
physdev_pci_device_t pci;
} u;
};
typedef struct physdev_dbgp_op physdev_dbgp_op_t;
DEFINE_XEN_GUEST_HANDLE(physdev_dbgp_op_t);
/*
* Notify that some PIRQ-bound event channels have been unmasked.
* ** This command is obsolete since interface version 0x00030202 and is **
* ** unsupported by newer versions of Xen. **
*/
#define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4
#if __XEN_INTERFACE_VERSION__ < 0x00040600
/*
* These all-capitals physdev operation names are superceded by the new names
* (defined above) since interface version 0x00030202. The guard above was
* added post-4.5 only though and hence shouldn't check for 0x00030202.
*/
#define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query
#define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl
#define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap
#define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read
#define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write
#define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector
#define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector
#define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi
#define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared
#endif
#if __XEN_INTERFACE_VERSION__ < 0x00040200
#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v1
#else
#define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v2
#endif
#endif /* __XEN_PUBLIC_PHYSDEV_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* sched.h
*
* Scheduler state interactions
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_SCHED_H__
#define __XEN_PUBLIC_SCHED_H__
#include "event_channel.h"
/*
* `incontents 150 sched Guest Scheduler Operations
*
* The SCHEDOP interface provides mechanisms for a guest to interact
* with the scheduler, including yield, blocking and shutting itself
* down.
*/
/*
* The prototype for this hypercall is:
* ` long HYPERVISOR_sched_op(enum sched_op cmd, void *arg, ...)
*
* @cmd == SCHEDOP_??? (scheduler operation).
* @arg == Operation-specific extra argument(s), as described below.
* ... == Additional Operation-specific extra arguments, described below.
*
* Versions of Xen prior to 3.0.2 provided only the following legacy version
* of this hypercall, supporting only the commands yield, block and shutdown:
* long sched_op(int cmd, unsigned long arg)
* @cmd == SCHEDOP_??? (scheduler operation).
* @arg == 0 (SCHEDOP_yield and SCHEDOP_block)
* == SHUTDOWN_* code (SCHEDOP_shutdown)
*
* This legacy version is available to new guests as:
* ` long HYPERVISOR_sched_op_compat(enum sched_op cmd, unsigned long arg)
*/
/* ` enum sched_op { // SCHEDOP_* => struct sched_* */
/*
* Voluntarily yield the CPU.
* @arg == NULL.
*/
#define SCHEDOP_yield 0
/*
* Block execution of this VCPU until an event is received for processing.
* If called with event upcalls masked, this operation will atomically
* reenable event delivery and check for pending events before blocking the
* VCPU. This avoids a "wakeup waiting" race.
* @arg == NULL.
*/
#define SCHEDOP_block 1
/*
* Halt execution of this domain (all VCPUs) and notify the system controller.
* @arg == pointer to sched_shutdown_t structure.
*
* If the sched_shutdown_t reason is SHUTDOWN_suspend then
* x86 PV guests must also set RDX (EDX for 32-bit guests) to the MFN
* of the guest's start info page. RDX/EDX is the third hypercall
* argument.
*
* In addition, which reason is SHUTDOWN_suspend this hypercall
* returns 1 if suspend was cancelled or the domain was merely
* checkpointed, and 0 if it is resuming in a new domain.
*/
#define SCHEDOP_shutdown 2
/*
* Poll a set of event-channel ports. Return when one or more are pending. An
* optional timeout may be specified.
* @arg == pointer to sched_poll_t structure.
*/
#define SCHEDOP_poll 3
/*
* Declare a shutdown for another domain. The main use of this function is
* in interpreting shutdown requests and reasons for fully-virtualized
* domains. A para-virtualized domain may use SCHEDOP_shutdown directly.
* @arg == pointer to sched_remote_shutdown_t structure.
*/
#define SCHEDOP_remote_shutdown 4
/*
* Latch a shutdown code, so that when the domain later shuts down it
* reports this code to the control tools.
* @arg == sched_shutdown_t, as for SCHEDOP_shutdown.
*/
#define SCHEDOP_shutdown_code 5
/*
* Setup, poke and destroy a domain watchdog timer.
* @arg == pointer to sched_watchdog_t structure.
* With id == 0, setup a domain watchdog timer to cause domain shutdown
* after timeout, returns watchdog id.
* With id != 0 and timeout == 0, destroy domain watchdog timer.
* With id != 0 and timeout != 0, poke watchdog timer and set new timeout.
*/
#define SCHEDOP_watchdog 6
/*
* Override the current vcpu affinity by pinning it to one physical cpu or
* undo this override restoring the previous affinity.
* @arg == pointer to sched_pin_override_t structure.
*
* A negative pcpu value will undo a previous pin override and restore the
* previous cpu affinity.
* This call is allowed for the hardware domain only and requires the cpu
* to be part of the domain's cpupool.
*/
#define SCHEDOP_pin_override 7
/* ` } */
struct sched_shutdown {
unsigned int reason; /* SHUTDOWN_* => enum sched_shutdown_reason */
};
typedef struct sched_shutdown sched_shutdown_t;
DEFINE_XEN_GUEST_HANDLE(sched_shutdown_t);
struct sched_poll {
XEN_GUEST_HANDLE(evtchn_port_t) ports;
unsigned int nr_ports;
uint64_t timeout;
};
typedef struct sched_poll sched_poll_t;
DEFINE_XEN_GUEST_HANDLE(sched_poll_t);
struct sched_remote_shutdown {
domid_t domain_id; /* Remote domain ID */
unsigned int reason; /* SHUTDOWN_* => enum sched_shutdown_reason */
};
typedef struct sched_remote_shutdown sched_remote_shutdown_t;
DEFINE_XEN_GUEST_HANDLE(sched_remote_shutdown_t);
struct sched_watchdog {
uint32_t id; /* watchdog ID */
uint32_t timeout; /* timeout */
};
typedef struct sched_watchdog sched_watchdog_t;
DEFINE_XEN_GUEST_HANDLE(sched_watchdog_t);
struct sched_pin_override {
int32_t pcpu;
};
typedef struct sched_pin_override sched_pin_override_t;
DEFINE_XEN_GUEST_HANDLE(sched_pin_override_t);
/*
* Reason codes for SCHEDOP_shutdown. These may be interpreted by control
* software to determine the appropriate action. For the most part, Xen does
* not care about the shutdown code.
*/
/* ` enum sched_shutdown_reason { */
#define SHUTDOWN_poweroff 0 /* Domain exited normally. Clean up and kill. */
#define SHUTDOWN_reboot 1 /* Clean up, kill, and then restart. */
#define SHUTDOWN_suspend 2 /* Clean up, save suspend info, kill. */
#define SHUTDOWN_crash 3 /* Tell controller we've crashed. */
#define SHUTDOWN_watchdog 4 /* Restart because watchdog time expired. */
/*
* Domain asked to perform 'soft reset' for it. The expected behavior is to
* reset internal Xen state for the domain returning it to the point where it
* was created but leaving the domain's memory contents and vCPU contexts
* intact. This will allow the domain to start over and set up all Xen specific
* interfaces again.
*/
#define SHUTDOWN_soft_reset 5
#define SHUTDOWN_MAX 5 /* Maximum valid shutdown reason. */
/* ` } */
#endif /* __XEN_PUBLIC_SCHED_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* include/public/trace.h
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Mark Williamson, (C) 2004 Intel Research Cambridge
* Copyright (C) 2005 Bin Ren
*/
#ifndef __XEN_PUBLIC_TRACE_H__
#define __XEN_PUBLIC_TRACE_H__
#define TRACE_EXTRA_MAX 7
#define TRACE_EXTRA_SHIFT 28
/* Trace classes */
#define TRC_CLS_SHIFT 16
#define TRC_GEN 0x0001f000 /* General trace */
#define TRC_SCHED 0x0002f000 /* Xen Scheduler trace */
#define TRC_DOM0OP 0x0004f000 /* Xen DOM0 operation trace */
#define TRC_HVM 0x0008f000 /* Xen HVM trace */
#define TRC_MEM 0x0010f000 /* Xen memory trace */
#define TRC_PV 0x0020f000 /* Xen PV traces */
#define TRC_SHADOW 0x0040f000 /* Xen shadow tracing */
#define TRC_HW 0x0080f000 /* Xen hardware-related traces */
#define TRC_GUEST 0x0800f000 /* Guest-generated traces */
#define TRC_ALL 0x0ffff000
#define TRC_HD_TO_EVENT(x) ((x)&0x0fffffff)
#define TRC_HD_CYCLE_FLAG (1UL<<31)
#define TRC_HD_INCLUDES_CYCLE_COUNT(x) ( !!( (x) & TRC_HD_CYCLE_FLAG ) )
#define TRC_HD_EXTRA(x) (((x)>>TRACE_EXTRA_SHIFT)&TRACE_EXTRA_MAX)
/* Trace subclasses */
#define TRC_SUBCLS_SHIFT 12
/* trace subclasses for SVM */
#define TRC_HVM_ENTRYEXIT 0x00081000 /* VMENTRY and #VMEXIT */
#define TRC_HVM_HANDLER 0x00082000 /* various HVM handlers */
#define TRC_HVM_EMUL 0x00084000 /* emulated devices */
#define TRC_SCHED_MIN 0x00021000 /* Just runstate changes */
#define TRC_SCHED_CLASS 0x00022000 /* Scheduler-specific */
#define TRC_SCHED_VERBOSE 0x00028000 /* More inclusive scheduling */
/*
* The highest 3 bits of the last 12 bits of TRC_SCHED_CLASS above are
* reserved for encoding what scheduler produced the information. The
* actual event is encoded in the last 9 bits.
*
* This means we have 8 scheduling IDs available (which means at most 8
* schedulers generating events) and, in each scheduler, up to 512
* different events.
*/
#define TRC_SCHED_ID_BITS 3
#define TRC_SCHED_ID_SHIFT (TRC_SUBCLS_SHIFT - TRC_SCHED_ID_BITS)
#define TRC_SCHED_ID_MASK (((1UL<<TRC_SCHED_ID_BITS) - 1) << TRC_SCHED_ID_SHIFT)
#define TRC_SCHED_EVT_MASK (~(TRC_SCHED_ID_MASK))
/* Per-scheduler IDs, to identify scheduler specific events */
#define TRC_SCHED_CSCHED 0
#define TRC_SCHED_CSCHED2 1
/* #define XEN_SCHEDULER_SEDF 2 (Removed) */
#define TRC_SCHED_ARINC653 3
#define TRC_SCHED_RTDS 4
#define TRC_SCHED_SNULL 5
/* Per-scheduler tracing */
#define TRC_SCHED_CLASS_EVT(_c, _e) \
( ( TRC_SCHED_CLASS | \
((TRC_SCHED_##_c << TRC_SCHED_ID_SHIFT) & TRC_SCHED_ID_MASK) ) + \
(_e & TRC_SCHED_EVT_MASK) )
/* Trace classes for DOM0 operations */
#define TRC_DOM0_DOMOPS 0x00041000 /* Domains manipulations */
/* Trace classes for Hardware */
#define TRC_HW_PM 0x00801000 /* Power management traces */
#define TRC_HW_IRQ 0x00802000 /* Traces relating to the handling of IRQs */
/* Trace events per class */
#define TRC_LOST_RECORDS (TRC_GEN + 1)
#define TRC_TRACE_WRAP_BUFFER (TRC_GEN + 2)
#define TRC_TRACE_CPU_CHANGE (TRC_GEN + 3)
#define TRC_SCHED_RUNSTATE_CHANGE (TRC_SCHED_MIN + 1)
#define TRC_SCHED_CONTINUE_RUNNING (TRC_SCHED_MIN + 2)
#define TRC_SCHED_DOM_ADD (TRC_SCHED_VERBOSE + 1)
#define TRC_SCHED_DOM_REM (TRC_SCHED_VERBOSE + 2)
#define TRC_SCHED_SLEEP (TRC_SCHED_VERBOSE + 3)
#define TRC_SCHED_WAKE (TRC_SCHED_VERBOSE + 4)
#define TRC_SCHED_YIELD (TRC_SCHED_VERBOSE + 5)
#define TRC_SCHED_BLOCK (TRC_SCHED_VERBOSE + 6)
#define TRC_SCHED_SHUTDOWN (TRC_SCHED_VERBOSE + 7)
#define TRC_SCHED_CTL (TRC_SCHED_VERBOSE + 8)
#define TRC_SCHED_ADJDOM (TRC_SCHED_VERBOSE + 9)
#define TRC_SCHED_SWITCH (TRC_SCHED_VERBOSE + 10)
#define TRC_SCHED_S_TIMER_FN (TRC_SCHED_VERBOSE + 11)
#define TRC_SCHED_T_TIMER_FN (TRC_SCHED_VERBOSE + 12)
#define TRC_SCHED_DOM_TIMER_FN (TRC_SCHED_VERBOSE + 13)
#define TRC_SCHED_SWITCH_INFPREV (TRC_SCHED_VERBOSE + 14)
#define TRC_SCHED_SWITCH_INFNEXT (TRC_SCHED_VERBOSE + 15)
#define TRC_SCHED_SHUTDOWN_CODE (TRC_SCHED_VERBOSE + 16)
#define TRC_SCHED_SWITCH_INFCONT (TRC_SCHED_VERBOSE + 17)
#define TRC_DOM0_DOM_ADD (TRC_DOM0_DOMOPS + 1)
#define TRC_DOM0_DOM_REM (TRC_DOM0_DOMOPS + 2)
#define TRC_MEM_PAGE_GRANT_MAP (TRC_MEM + 1)
#define TRC_MEM_PAGE_GRANT_UNMAP (TRC_MEM + 2)
#define TRC_MEM_PAGE_GRANT_TRANSFER (TRC_MEM + 3)
#define TRC_MEM_SET_P2M_ENTRY (TRC_MEM + 4)
#define TRC_MEM_DECREASE_RESERVATION (TRC_MEM + 5)
#define TRC_MEM_POD_POPULATE (TRC_MEM + 16)
#define TRC_MEM_POD_ZERO_RECLAIM (TRC_MEM + 17)
#define TRC_MEM_POD_SUPERPAGE_SPLINTER (TRC_MEM + 18)
#define TRC_PV_ENTRY 0x00201000 /* Hypervisor entry points for PV guests. */
#define TRC_PV_SUBCALL 0x00202000 /* Sub-call in a multicall hypercall */
#define TRC_PV_HYPERCALL (TRC_PV_ENTRY + 1)
#define TRC_PV_TRAP (TRC_PV_ENTRY + 3)
#define TRC_PV_PAGE_FAULT (TRC_PV_ENTRY + 4)
#define TRC_PV_FORCED_INVALID_OP (TRC_PV_ENTRY + 5)
#define TRC_PV_EMULATE_PRIVOP (TRC_PV_ENTRY + 6)
#define TRC_PV_EMULATE_4GB (TRC_PV_ENTRY + 7)
#define TRC_PV_MATH_STATE_RESTORE (TRC_PV_ENTRY + 8)
#define TRC_PV_PAGING_FIXUP (TRC_PV_ENTRY + 9)
#define TRC_PV_GDT_LDT_MAPPING_FAULT (TRC_PV_ENTRY + 10)
#define TRC_PV_PTWR_EMULATION (TRC_PV_ENTRY + 11)
#define TRC_PV_PTWR_EMULATION_PAE (TRC_PV_ENTRY + 12)
#define TRC_PV_HYPERCALL_V2 (TRC_PV_ENTRY + 13)
#define TRC_PV_HYPERCALL_SUBCALL (TRC_PV_SUBCALL + 14)
/*
* TRC_PV_HYPERCALL_V2 format
*
* Only some of the hypercall argument are recorded. Bit fields A0 to
* A5 in the first extra word are set if the argument is present and
* the arguments themselves are packed sequentially in the following
* words.
*
* The TRC_64_FLAG bit is not set for these events (even if there are
* 64-bit arguments in the record).
*
* Word
* 0 bit 31 30|29 28|27 26|25 24|23 22|21 20|19 ... 0
* A5 |A4 |A3 |A2 |A1 |A0 |Hypercall op
* 1 First 32 bit (or low word of first 64 bit) arg in record
* 2 Second 32 bit (or high word of first 64 bit) arg in record
* ...
*
* A0-A5 bitfield values:
*
* 00b Argument not present
* 01b 32-bit argument present
* 10b 64-bit argument present
* 11b Reserved
*/
#define TRC_PV_HYPERCALL_V2_ARG_32(i) (0x1 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_64(i) (0x2 << (20 + 2*(i)))
#define TRC_PV_HYPERCALL_V2_ARG_MASK (0xfff00000)
#define TRC_SHADOW_NOT_SHADOW (TRC_SHADOW + 1)
#define TRC_SHADOW_FAST_PROPAGATE (TRC_SHADOW + 2)
#define TRC_SHADOW_FAST_MMIO (TRC_SHADOW + 3)
#define TRC_SHADOW_FALSE_FAST_PATH (TRC_SHADOW + 4)
#define TRC_SHADOW_MMIO (TRC_SHADOW + 5)
#define TRC_SHADOW_FIXUP (TRC_SHADOW + 6)
#define TRC_SHADOW_DOMF_DYING (TRC_SHADOW + 7)
#define TRC_SHADOW_EMULATE (TRC_SHADOW + 8)
#define TRC_SHADOW_EMULATE_UNSHADOW_USER (TRC_SHADOW + 9)
#define TRC_SHADOW_EMULATE_UNSHADOW_EVTINJ (TRC_SHADOW + 10)
#define TRC_SHADOW_EMULATE_UNSHADOW_UNHANDLED (TRC_SHADOW + 11)
#define TRC_SHADOW_WRMAP_BF (TRC_SHADOW + 12)
#define TRC_SHADOW_PREALLOC_UNPIN (TRC_SHADOW + 13)
#define TRC_SHADOW_RESYNC_FULL (TRC_SHADOW + 14)
#define TRC_SHADOW_RESYNC_ONLY (TRC_SHADOW + 15)
/* trace events per subclass */
#define TRC_HVM_NESTEDFLAG (0x400)
#define TRC_HVM_VMENTRY (TRC_HVM_ENTRYEXIT + 0x01)
#define TRC_HVM_VMEXIT (TRC_HVM_ENTRYEXIT + 0x02)
#define TRC_HVM_VMEXIT64 (TRC_HVM_ENTRYEXIT + TRC_64_FLAG + 0x02)
#define TRC_HVM_PF_XEN (TRC_HVM_HANDLER + 0x01)
#define TRC_HVM_PF_XEN64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x01)
#define TRC_HVM_PF_INJECT (TRC_HVM_HANDLER + 0x02)
#define TRC_HVM_PF_INJECT64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x02)
#define TRC_HVM_INJ_EXC (TRC_HVM_HANDLER + 0x03)
#define TRC_HVM_INJ_VIRQ (TRC_HVM_HANDLER + 0x04)
#define TRC_HVM_REINJ_VIRQ (TRC_HVM_HANDLER + 0x05)
#define TRC_HVM_IO_READ (TRC_HVM_HANDLER + 0x06)
#define TRC_HVM_IO_WRITE (TRC_HVM_HANDLER + 0x07)
#define TRC_HVM_CR_READ (TRC_HVM_HANDLER + 0x08)
#define TRC_HVM_CR_READ64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x08)
#define TRC_HVM_CR_WRITE (TRC_HVM_HANDLER + 0x09)
#define TRC_HVM_CR_WRITE64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x09)
#define TRC_HVM_DR_READ (TRC_HVM_HANDLER + 0x0A)
#define TRC_HVM_DR_WRITE (TRC_HVM_HANDLER + 0x0B)
#define TRC_HVM_MSR_READ (TRC_HVM_HANDLER + 0x0C)
#define TRC_HVM_MSR_WRITE (TRC_HVM_HANDLER + 0x0D)
#define TRC_HVM_CPUID (TRC_HVM_HANDLER + 0x0E)
#define TRC_HVM_INTR (TRC_HVM_HANDLER + 0x0F)
#define TRC_HVM_NMI (TRC_HVM_HANDLER + 0x10)
#define TRC_HVM_SMI (TRC_HVM_HANDLER + 0x11)
#define TRC_HVM_VMMCALL (TRC_HVM_HANDLER + 0x12)
#define TRC_HVM_HLT (TRC_HVM_HANDLER + 0x13)
#define TRC_HVM_INVLPG (TRC_HVM_HANDLER + 0x14)
#define TRC_HVM_INVLPG64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x14)
#define TRC_HVM_MCE (TRC_HVM_HANDLER + 0x15)
#define TRC_HVM_IOPORT_READ (TRC_HVM_HANDLER + 0x16)
#define TRC_HVM_IOMEM_READ (TRC_HVM_HANDLER + 0x17)
#define TRC_HVM_CLTS (TRC_HVM_HANDLER + 0x18)
#define TRC_HVM_LMSW (TRC_HVM_HANDLER + 0x19)
#define TRC_HVM_LMSW64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x19)
#define TRC_HVM_RDTSC (TRC_HVM_HANDLER + 0x1a)
#define TRC_HVM_INTR_WINDOW (TRC_HVM_HANDLER + 0x20)
#define TRC_HVM_NPF (TRC_HVM_HANDLER + 0x21)
#define TRC_HVM_REALMODE_EMULATE (TRC_HVM_HANDLER + 0x22)
#define TRC_HVM_TRAP (TRC_HVM_HANDLER + 0x23)
#define TRC_HVM_TRAP_DEBUG (TRC_HVM_HANDLER + 0x24)
#define TRC_HVM_VLAPIC (TRC_HVM_HANDLER + 0x25)
#define TRC_HVM_XCR_READ64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x26)
#define TRC_HVM_XCR_WRITE64 (TRC_HVM_HANDLER + TRC_64_FLAG + 0x27)
#define TRC_HVM_IOPORT_WRITE (TRC_HVM_HANDLER + 0x216)
#define TRC_HVM_IOMEM_WRITE (TRC_HVM_HANDLER + 0x217)
/* Trace events for emulated devices */
#define TRC_HVM_EMUL_HPET_START_TIMER (TRC_HVM_EMUL + 0x1)
#define TRC_HVM_EMUL_PIT_START_TIMER (TRC_HVM_EMUL + 0x2)
#define TRC_HVM_EMUL_RTC_START_TIMER (TRC_HVM_EMUL + 0x3)
#define TRC_HVM_EMUL_LAPIC_START_TIMER (TRC_HVM_EMUL + 0x4)
#define TRC_HVM_EMUL_HPET_STOP_TIMER (TRC_HVM_EMUL + 0x5)
#define TRC_HVM_EMUL_PIT_STOP_TIMER (TRC_HVM_EMUL + 0x6)
#define TRC_HVM_EMUL_RTC_STOP_TIMER (TRC_HVM_EMUL + 0x7)
#define TRC_HVM_EMUL_LAPIC_STOP_TIMER (TRC_HVM_EMUL + 0x8)
#define TRC_HVM_EMUL_PIT_TIMER_CB (TRC_HVM_EMUL + 0x9)
#define TRC_HVM_EMUL_LAPIC_TIMER_CB (TRC_HVM_EMUL + 0xA)
#define TRC_HVM_EMUL_PIC_INT_OUTPUT (TRC_HVM_EMUL + 0xB)
#define TRC_HVM_EMUL_PIC_KICK (TRC_HVM_EMUL + 0xC)
#define TRC_HVM_EMUL_PIC_INTACK (TRC_HVM_EMUL + 0xD)
#define TRC_HVM_EMUL_PIC_POSEDGE (TRC_HVM_EMUL + 0xE)
#define TRC_HVM_EMUL_PIC_NEGEDGE (TRC_HVM_EMUL + 0xF)
#define TRC_HVM_EMUL_PIC_PEND_IRQ_CALL (TRC_HVM_EMUL + 0x10)
#define TRC_HVM_EMUL_LAPIC_PIC_INTR (TRC_HVM_EMUL + 0x11)
/* trace events for per class */
#define TRC_PM_FREQ_CHANGE (TRC_HW_PM + 0x01)
#define TRC_PM_IDLE_ENTRY (TRC_HW_PM + 0x02)
#define TRC_PM_IDLE_EXIT (TRC_HW_PM + 0x03)
/* Trace events for IRQs */
#define TRC_HW_IRQ_MOVE_CLEANUP_DELAY (TRC_HW_IRQ + 0x1)
#define TRC_HW_IRQ_MOVE_CLEANUP (TRC_HW_IRQ + 0x2)
#define TRC_HW_IRQ_BIND_VECTOR (TRC_HW_IRQ + 0x3)
#define TRC_HW_IRQ_CLEAR_VECTOR (TRC_HW_IRQ + 0x4)
#define TRC_HW_IRQ_MOVE_FINISH (TRC_HW_IRQ + 0x5)
#define TRC_HW_IRQ_ASSIGN_VECTOR (TRC_HW_IRQ + 0x6)
#define TRC_HW_IRQ_UNMAPPED_VECTOR (TRC_HW_IRQ + 0x7)
#define TRC_HW_IRQ_HANDLED (TRC_HW_IRQ + 0x8)
/*
* Event Flags
*
* Some events (e.g, TRC_PV_TRAP and TRC_HVM_IOMEM_READ) have multiple
* record formats. These event flags distinguish between the
* different formats.
*/
#define TRC_64_FLAG 0x100 /* Addresses are 64 bits (instead of 32 bits) */
/* This structure represents a single trace buffer record. */
struct t_rec {
uint32_t event:28;
uint32_t extra_u32:3; /* # entries in trailing extra_u32[] array */
uint32_t cycles_included:1; /* u.cycles or u.no_cycles? */
union {
struct {
uint32_t cycles_lo, cycles_hi; /* cycle counter timestamp */
uint32_t extra_u32[7]; /* event data items */
} cycles;
struct {
uint32_t extra_u32[7]; /* event data items */
} nocycles;
} u;
};
/*
* This structure contains the metadata for a single trace buffer. The head
* field, indexes into an array of struct t_rec's.
*/
struct t_buf {
/* Assume the data buffer size is X. X is generally not a power of 2.
* CONS and PROD are incremented modulo (2*X):
* 0 <= cons < 2*X
* 0 <= prod < 2*X
* This is done because addition modulo X breaks at 2^32 when X is not a
* power of 2:
* (((2^32 - 1) % X) + 1) % X != (2^32) % X
*/
uint32_t cons; /* Offset of next item to be consumed by control tools. */
uint32_t prod; /* Offset of next item to be produced by Xen. */
/* Records follow immediately after the meta-data header. */
};
/* Structure used to pass MFNs to the trace buffers back to trace consumers.
* Offset is an offset into the mapped structure where the mfn list will be held.
* MFNs will be at ((unsigned long *)(t_info))+(t_info->cpu_offset[cpu]).
*/
struct t_info {
uint16_t tbuf_size; /* Size in pages of each trace buffer */
uint16_t mfn_offset[]; /* Offset within t_info structure of the page list per cpu */
/* MFN lists immediately after the header */
};
#endif /* __XEN_PUBLIC_TRACE_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* vcpu.h
*
* VCPU initialisation, query, and hotplug.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_VCPU_H__
#define __XEN_PUBLIC_VCPU_H__
#include "xen.h"
/*
* Prototype for this hypercall is:
* long vcpu_op(int cmd, unsigned int vcpuid, void *extra_args)
* @cmd == VCPUOP_??? (VCPU operation).
* @vcpuid == VCPU to operate on.
* @extra_args == Operation-specific extra arguments (NULL if none).
*/
/*
* Initialise a VCPU. Each VCPU can be initialised only once. A
* newly-initialised VCPU will not run until it is brought up by VCPUOP_up.
*
* @extra_arg == For PV or ARM guests this is a pointer to a vcpu_guest_context
* structure containing the initial state for the VCPU. For x86
* HVM based guests this is a pointer to a vcpu_hvm_context
* structure.
*/
#define VCPUOP_initialise 0
/*
* Bring up a VCPU. This makes the VCPU runnable. This operation will fail
* if the VCPU has not been initialised (VCPUOP_initialise).
*/
#define VCPUOP_up 1
/*
* Bring down a VCPU (i.e., make it non-runnable).
* There are a few caveats that callers should observe:
* 1. This operation may return, and VCPU_is_up may return false, before the
* VCPU stops running (i.e., the command is asynchronous). It is a good
* idea to ensure that the VCPU has entered a non-critical loop before
* bringing it down. Alternatively, this operation is guaranteed
* synchronous if invoked by the VCPU itself.
* 2. After a VCPU is initialised, there is currently no way to drop all its
* references to domain memory. Even a VCPU that is down still holds
* memory references via its pagetable base pointer and GDT. It is good
* practise to move a VCPU onto an 'idle' or default page table, LDT and
* GDT before bringing it down.
*/
#define VCPUOP_down 2
/* Returns 1 if the given VCPU is up. */
#define VCPUOP_is_up 3
/*
* Return information about the state and running time of a VCPU.
* @extra_arg == pointer to vcpu_runstate_info structure.
*/
#define VCPUOP_get_runstate_info 4
struct vcpu_runstate_info {
/* VCPU's current state (RUNSTATE_*). */
int state;
/* When was current state entered (system time, ns)? */
uint64_t state_entry_time;
/*
* Update indicator set in state_entry_time:
* When activated via VMASST_TYPE_runstate_update_flag, set during
* updates in guest memory mapped copy of vcpu_runstate_info.
*/
#define XEN_RUNSTATE_UPDATE (xen_mk_ullong(1) << 63)
/*
* Time spent in each RUNSTATE_* (ns). The sum of these times is
* guaranteed not to drift from system time.
*/
uint64_t time[4];
};
typedef struct vcpu_runstate_info vcpu_runstate_info_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_runstate_info_t);
/* VCPU is currently running on a physical CPU. */
#define RUNSTATE_running 0
/* VCPU is runnable, but not currently scheduled on any physical CPU. */
#define RUNSTATE_runnable 1
/* VCPU is blocked (a.k.a. idle). It is therefore not runnable. */
#define RUNSTATE_blocked 2
/*
* VCPU is not runnable, but it is not blocked.
* This is a 'catch all' state for things like hotplug and pauses by the
* system administrator (or for critical sections in the hypervisor).
* RUNSTATE_blocked dominates this state (it is the preferred state).
*/
#define RUNSTATE_offline 3
/*
* Register a shared memory area from which the guest may obtain its own
* runstate information without needing to execute a hypercall.
* Notes:
* 1. The registered address may be virtual or physical or guest handle,
* depending on the platform. Virtual address or guest handle should be
* registered on x86 systems.
* 2. Only one shared area may be registered per VCPU. The shared area is
* updated by the hypervisor each time the VCPU is scheduled. Thus
* runstate.state will always be RUNSTATE_running and
* runstate.state_entry_time will indicate the system time at which the
* VCPU was last scheduled to run.
* @extra_arg == pointer to vcpu_register_runstate_memory_area structure.
*/
#define VCPUOP_register_runstate_memory_area 5
struct vcpu_register_runstate_memory_area {
union {
XEN_GUEST_HANDLE(vcpu_runstate_info_t) h;
struct vcpu_runstate_info *v;
uint64_t p;
} addr;
};
typedef struct vcpu_register_runstate_memory_area vcpu_register_runstate_memory_area_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_runstate_memory_area_t);
/*
* Set or stop a VCPU's periodic timer. Every VCPU has one periodic timer
* which can be set via these commands. Periods smaller than one millisecond
* may not be supported.
*/
#define VCPUOP_set_periodic_timer 6 /* arg == vcpu_set_periodic_timer_t */
#define VCPUOP_stop_periodic_timer 7 /* arg == NULL */
struct vcpu_set_periodic_timer {
uint64_t period_ns;
};
typedef struct vcpu_set_periodic_timer vcpu_set_periodic_timer_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_set_periodic_timer_t);
/*
* Set or stop a VCPU's single-shot timer. Every VCPU has one single-shot
* timer which can be set via these commands.
*/
#define VCPUOP_set_singleshot_timer 8 /* arg == vcpu_set_singleshot_timer_t */
#define VCPUOP_stop_singleshot_timer 9 /* arg == NULL */
struct vcpu_set_singleshot_timer {
uint64_t timeout_abs_ns; /* Absolute system time value in nanoseconds. */
uint32_t flags; /* VCPU_SSHOTTMR_??? */
};
typedef struct vcpu_set_singleshot_timer vcpu_set_singleshot_timer_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_set_singleshot_timer_t);
/* Flags to VCPUOP_set_singleshot_timer. */
/* Require the timeout to be in the future (return -ETIME if it's passed). */
#define _VCPU_SSHOTTMR_future (0)
#define VCPU_SSHOTTMR_future (1U << _VCPU_SSHOTTMR_future)
/*
* Register a memory location in the guest address space for the
* vcpu_info structure. This allows the guest to place the vcpu_info
* structure in a convenient place, such as in a per-cpu data area.
* The pointer need not be page aligned, but the structure must not
* cross a page boundary.
*
* This may be called only once per vcpu.
*/
#define VCPUOP_register_vcpu_info 10 /* arg == vcpu_register_vcpu_info_t */
struct vcpu_register_vcpu_info {
uint64_t mfn; /* mfn of page to place vcpu_info */
uint32_t offset; /* offset within page */
uint32_t rsvd; /* unused */
};
typedef struct vcpu_register_vcpu_info vcpu_register_vcpu_info_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_vcpu_info_t);
/* Send an NMI to the specified VCPU. @extra_arg == NULL. */
#define VCPUOP_send_nmi 11
/*
* Get the physical ID information for a pinned vcpu's underlying physical
* processor. The physical ID informmation is architecture-specific.
* On x86: id[31:0]=apic_id, id[63:32]=acpi_id.
* This command returns -EINVAL if it is not a valid operation for this VCPU.
*/
#define VCPUOP_get_physid 12 /* arg == vcpu_get_physid_t */
struct vcpu_get_physid {
uint64_t phys_id;
};
typedef struct vcpu_get_physid vcpu_get_physid_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_get_physid_t);
#define xen_vcpu_physid_to_x86_apicid(physid) ((uint32_t)(physid))
#define xen_vcpu_physid_to_x86_acpiid(physid) ((uint32_t)((physid) >> 32))
/*
* Register a memory location to get a secondary copy of the vcpu time
* parameters. The master copy still exists as part of the vcpu shared
* memory area, and this secondary copy is updated whenever the master copy
* is updated (and using the same versioning scheme for synchronisation).
*
* The intent is that this copy may be mapped (RO) into userspace so
* that usermode can compute system time using the time info and the
* tsc. Usermode will see an array of vcpu_time_info structures, one
* for each vcpu, and choose the right one by an existing mechanism
* which allows it to get the current vcpu number (such as via a
* segment limit). It can then apply the normal algorithm to compute
* system time from the tsc.
*
* @extra_arg == pointer to vcpu_register_time_info_memory_area structure.
*/
#define VCPUOP_register_vcpu_time_memory_area 13
DEFINE_XEN_GUEST_HANDLE(vcpu_time_info_t);
struct vcpu_register_time_memory_area {
union {
XEN_GUEST_HANDLE(vcpu_time_info_t) h;
struct vcpu_time_info *v;
uint64_t p;
} addr;
};
typedef struct vcpu_register_time_memory_area vcpu_register_time_memory_area_t;
DEFINE_XEN_GUEST_HANDLE(vcpu_register_time_memory_area_t);
#endif /* __XEN_PUBLIC_VCPU_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* version.h
*
* Xen version, type, and compile information.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2005, Nguyen Anh Quynh <aquynh@gmail.com>
* Copyright (c) 2005, Keir Fraser <keir@xensource.com>
*/
#ifndef __XEN_PUBLIC_VERSION_H__
#define __XEN_PUBLIC_VERSION_H__
#include "xen.h"
/* NB. All ops return zero on success, except XENVER_{version,pagesize}
* XENVER_{version,pagesize,build_id} */
/* arg == NULL; returns major:minor (16:16). */
#define XENVER_version 0
/* arg == xen_extraversion_t. */
#define XENVER_extraversion 1
typedef char xen_extraversion_t[16];
#define XEN_EXTRAVERSION_LEN (sizeof(xen_extraversion_t))
/* arg == xen_compile_info_t. */
#define XENVER_compile_info 2
struct xen_compile_info {
char compiler[64];
char compile_by[16];
char compile_domain[32];
char compile_date[32];
};
typedef struct xen_compile_info xen_compile_info_t;
#define XENVER_capabilities 3
typedef char xen_capabilities_info_t[1024];
#define XEN_CAPABILITIES_INFO_LEN (sizeof(xen_capabilities_info_t))
#define XENVER_changeset 4
typedef char xen_changeset_info_t[64];
#define XEN_CHANGESET_INFO_LEN (sizeof(xen_changeset_info_t))
#define XENVER_platform_parameters 5
struct xen_platform_parameters {
xen_ulong_t virt_start;
};
typedef struct xen_platform_parameters xen_platform_parameters_t;
#define XENVER_get_features 6
struct xen_feature_info {
unsigned int submap_idx; /* IN: which 32-bit submap to return */
uint32_t submap; /* OUT: 32-bit submap */
};
typedef struct xen_feature_info xen_feature_info_t;
/* Declares the features reported by XENVER_get_features. */
#include "features.h"
/* arg == NULL; returns host memory page size. */
#define XENVER_pagesize 7
/* arg == xen_domain_handle_t.
*
* The toolstack fills it out for guest consumption. It is intended to hold
* the UUID of the guest.
*/
#define XENVER_guest_handle 8
#define XENVER_commandline 9
typedef char xen_commandline_t[1024];
/*
* Return value is the number of bytes written, or XEN_Exx on error.
* Calling with empty parameter returns the size of build_id.
*/
#define XENVER_build_id 10
struct xen_build_id {
uint32_t len; /* IN: size of buf[]. */
unsigned char buf[XEN_FLEX_ARRAY_DIM];
/* OUT: Variable length buffer with build_id. */
};
typedef struct xen_build_id xen_build_id_t;
#endif /* __XEN_PUBLIC_VERSION_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/

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/******************************************************************************
* xen-compat.h
*
* Guest OS interface to Xen. Compatibility layer.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Copyright (c) 2006, Christian Limpach
*/
#ifndef __XEN_PUBLIC_XEN_COMPAT_H__
#define __XEN_PUBLIC_XEN_COMPAT_H__
#define __XEN_LATEST_INTERFACE_VERSION__ 0x00040e00
#if defined(__XEN__) || defined(__XEN_TOOLS__)
/* Xen is built with matching headers and implements the latest interface. */
#define __XEN_INTERFACE_VERSION__ __XEN_LATEST_INTERFACE_VERSION__
#elif !defined(__XEN_INTERFACE_VERSION__)
/* Guests which do not specify a version get the legacy interface. */
#define __XEN_INTERFACE_VERSION__ 0x00000000
#endif
#if __XEN_INTERFACE_VERSION__ > __XEN_LATEST_INTERFACE_VERSION__
#error "These header files do not support the requested interface version."
#endif
#define COMPAT_FLEX_ARRAY_DIM XEN_FLEX_ARRAY_DIM
#endif /* __XEN_PUBLIC_XEN_COMPAT_H__ */

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#ifndef QEMU_HW_XEN_H
#define QEMU_HW_XEN_H
/*
* public xen header
* stuff needed outside xen-*.c, i.e. interfaces to qemu.
* must not depend on any xen headers being present in
* /usr/include/xen, so it can be included unconditionally.
*/
#ifndef QEMU_HW_XEN_H
#define QEMU_HW_XEN_H
/*
* As a temporary measure while the headers are being untangled, define
* __XEN_TOOLS__ here before any Xen headers are included. Otherwise, if
* the Xen toolstack library headers are later included, they will find
* some of the "internal" definitions missing and the build will fail. In
* later commits, we'll end up with a rule that the native libraries have
* to be included first, which will ensure that the libraries get the
* version of Xen libraries that they expect.
*/
#define __XEN_TOOLS__ 1
#include "exec/cpu-common.h"