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https://github.com/edk2-porting/linux-next.git
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b2312f059c
Device Control Registers are essentially another address space found on PowerPC 4xx processors, analogous to PIO on x86. DCRs are always 32 bits, and can be identified by a 32-bit number. We forward most DCR accesses to userspace for emulation (with the exception of CPR0 registers, which can be read directly for simplicity in timebase frequency determination). Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
414 lines
11 KiB
C
414 lines
11 KiB
C
#ifndef __LINUX_KVM_H
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#define __LINUX_KVM_H
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/*
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* Userspace interface for /dev/kvm - kernel based virtual machine
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*
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* Note: you must update KVM_API_VERSION if you change this interface.
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*/
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#include <asm/types.h>
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#include <linux/compiler.h>
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#include <linux/ioctl.h>
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#include <asm/kvm.h>
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#define KVM_API_VERSION 12
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/* for KVM_TRACE_ENABLE */
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struct kvm_user_trace_setup {
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__u32 buf_size; /* sub_buffer size of each per-cpu */
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__u32 buf_nr; /* the number of sub_buffers of each per-cpu */
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};
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/* for KVM_CREATE_MEMORY_REGION */
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struct kvm_memory_region {
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__u32 slot;
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__u32 flags;
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__u64 guest_phys_addr;
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__u64 memory_size; /* bytes */
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};
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/* for KVM_SET_USER_MEMORY_REGION */
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struct kvm_userspace_memory_region {
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__u32 slot;
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__u32 flags;
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__u64 guest_phys_addr;
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__u64 memory_size; /* bytes */
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__u64 userspace_addr; /* start of the userspace allocated memory */
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};
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/* for kvm_memory_region::flags */
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#define KVM_MEM_LOG_DIRTY_PAGES 1UL
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/* for KVM_IRQ_LINE */
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struct kvm_irq_level {
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/*
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* ACPI gsi notion of irq.
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* For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
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* For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
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*/
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__u32 irq;
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__u32 level;
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};
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struct kvm_irqchip {
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__u32 chip_id;
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__u32 pad;
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union {
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char dummy[512]; /* reserving space */
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#ifdef CONFIG_X86
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struct kvm_pic_state pic;
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#endif
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#if defined(CONFIG_X86) || defined(CONFIG_IA64)
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struct kvm_ioapic_state ioapic;
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#endif
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} chip;
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};
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#define KVM_EXIT_UNKNOWN 0
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#define KVM_EXIT_EXCEPTION 1
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#define KVM_EXIT_IO 2
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#define KVM_EXIT_HYPERCALL 3
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#define KVM_EXIT_DEBUG 4
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#define KVM_EXIT_HLT 5
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#define KVM_EXIT_MMIO 6
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#define KVM_EXIT_IRQ_WINDOW_OPEN 7
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#define KVM_EXIT_SHUTDOWN 8
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#define KVM_EXIT_FAIL_ENTRY 9
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#define KVM_EXIT_INTR 10
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#define KVM_EXIT_SET_TPR 11
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#define KVM_EXIT_TPR_ACCESS 12
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#define KVM_EXIT_S390_SIEIC 13
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#define KVM_EXIT_S390_RESET 14
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#define KVM_EXIT_DCR 15
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/* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
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struct kvm_run {
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/* in */
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__u8 request_interrupt_window;
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__u8 padding1[7];
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/* out */
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__u32 exit_reason;
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__u8 ready_for_interrupt_injection;
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__u8 if_flag;
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__u8 padding2[2];
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/* in (pre_kvm_run), out (post_kvm_run) */
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__u64 cr8;
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__u64 apic_base;
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union {
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/* KVM_EXIT_UNKNOWN */
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struct {
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__u64 hardware_exit_reason;
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} hw;
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/* KVM_EXIT_FAIL_ENTRY */
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struct {
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__u64 hardware_entry_failure_reason;
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} fail_entry;
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/* KVM_EXIT_EXCEPTION */
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struct {
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__u32 exception;
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__u32 error_code;
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} ex;
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/* KVM_EXIT_IO */
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struct kvm_io {
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#define KVM_EXIT_IO_IN 0
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#define KVM_EXIT_IO_OUT 1
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__u8 direction;
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__u8 size; /* bytes */
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__u16 port;
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__u32 count;
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__u64 data_offset; /* relative to kvm_run start */
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} io;
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struct {
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} debug;
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/* KVM_EXIT_MMIO */
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struct {
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__u64 phys_addr;
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__u8 data[8];
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__u32 len;
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__u8 is_write;
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} mmio;
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/* KVM_EXIT_HYPERCALL */
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struct {
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__u64 nr;
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__u64 args[6];
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__u64 ret;
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__u32 longmode;
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__u32 pad;
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} hypercall;
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/* KVM_EXIT_TPR_ACCESS */
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struct {
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__u64 rip;
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__u32 is_write;
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__u32 pad;
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} tpr_access;
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/* KVM_EXIT_S390_SIEIC */
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struct {
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__u8 icptcode;
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__u64 mask; /* psw upper half */
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__u64 addr; /* psw lower half */
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__u16 ipa;
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__u32 ipb;
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} s390_sieic;
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/* KVM_EXIT_S390_RESET */
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#define KVM_S390_RESET_POR 1
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#define KVM_S390_RESET_CLEAR 2
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#define KVM_S390_RESET_SUBSYSTEM 4
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#define KVM_S390_RESET_CPU_INIT 8
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#define KVM_S390_RESET_IPL 16
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__u64 s390_reset_flags;
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/* KVM_EXIT_DCR */
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struct {
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__u32 dcrn;
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__u32 data;
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__u8 is_write;
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} dcr;
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/* Fix the size of the union. */
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char padding[256];
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};
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};
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/* for KVM_TRANSLATE */
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struct kvm_translation {
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/* in */
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__u64 linear_address;
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/* out */
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__u64 physical_address;
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__u8 valid;
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__u8 writeable;
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__u8 usermode;
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__u8 pad[5];
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};
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/* for KVM_INTERRUPT */
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struct kvm_interrupt {
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/* in */
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__u32 irq;
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};
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struct kvm_breakpoint {
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__u32 enabled;
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__u32 padding;
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__u64 address;
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};
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/* for KVM_DEBUG_GUEST */
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struct kvm_debug_guest {
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/* int */
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__u32 enabled;
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__u32 pad;
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struct kvm_breakpoint breakpoints[4];
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__u32 singlestep;
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};
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/* for KVM_GET_DIRTY_LOG */
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struct kvm_dirty_log {
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__u32 slot;
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__u32 padding;
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union {
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void __user *dirty_bitmap; /* one bit per page */
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__u64 padding;
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};
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};
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/* for KVM_SET_SIGNAL_MASK */
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struct kvm_signal_mask {
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__u32 len;
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__u8 sigset[0];
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};
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/* for KVM_TPR_ACCESS_REPORTING */
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struct kvm_tpr_access_ctl {
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__u32 enabled;
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__u32 flags;
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__u32 reserved[8];
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};
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/* for KVM_SET_VAPIC_ADDR */
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struct kvm_vapic_addr {
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__u64 vapic_addr;
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};
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/* for KVM_SET_MPSTATE */
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#define KVM_MP_STATE_RUNNABLE 0
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#define KVM_MP_STATE_UNINITIALIZED 1
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#define KVM_MP_STATE_INIT_RECEIVED 2
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#define KVM_MP_STATE_HALTED 3
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#define KVM_MP_STATE_SIPI_RECEIVED 4
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struct kvm_mp_state {
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__u32 mp_state;
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};
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struct kvm_s390_psw {
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__u64 mask;
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__u64 addr;
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};
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/* valid values for type in kvm_s390_interrupt */
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#define KVM_S390_SIGP_STOP 0xfffe0000u
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#define KVM_S390_PROGRAM_INT 0xfffe0001u
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#define KVM_S390_SIGP_SET_PREFIX 0xfffe0002u
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#define KVM_S390_RESTART 0xfffe0003u
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#define KVM_S390_INT_VIRTIO 0xffff2603u
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#define KVM_S390_INT_SERVICE 0xffff2401u
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#define KVM_S390_INT_EMERGENCY 0xffff1201u
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struct kvm_s390_interrupt {
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__u32 type;
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__u32 parm;
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__u64 parm64;
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};
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#define KVM_TRC_SHIFT 16
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/*
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* kvm trace categories
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*/
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#define KVM_TRC_ENTRYEXIT (1 << KVM_TRC_SHIFT)
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#define KVM_TRC_HANDLER (1 << (KVM_TRC_SHIFT + 1)) /* only 12 bits */
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/*
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* kvm trace action
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*/
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#define KVM_TRC_VMENTRY (KVM_TRC_ENTRYEXIT + 0x01)
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#define KVM_TRC_VMEXIT (KVM_TRC_ENTRYEXIT + 0x02)
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#define KVM_TRC_PAGE_FAULT (KVM_TRC_HANDLER + 0x01)
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#define KVM_TRC_HEAD_SIZE 12
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#define KVM_TRC_CYCLE_SIZE 8
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#define KVM_TRC_EXTRA_MAX 7
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/* This structure represents a single trace buffer record. */
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struct kvm_trace_rec {
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__u32 event:28;
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__u32 extra_u32:3;
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__u32 cycle_in:1;
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__u32 pid;
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__u32 vcpu_id;
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union {
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struct {
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__u32 cycle_lo, cycle_hi;
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__u32 extra_u32[KVM_TRC_EXTRA_MAX];
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} cycle;
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struct {
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__u32 extra_u32[KVM_TRC_EXTRA_MAX];
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} nocycle;
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} u;
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};
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#define KVMIO 0xAE
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/*
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* ioctls for /dev/kvm fds:
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*/
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#define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
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#define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
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#define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
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#define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
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/*
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* Check if a kvm extension is available. Argument is extension number,
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* return is 1 (yes) or 0 (no, sorry).
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*/
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#define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
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/*
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* Get size for mmap(vcpu_fd)
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*/
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#define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
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#define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
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/*
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* ioctls for kvm trace
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*/
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#define KVM_TRACE_ENABLE _IOW(KVMIO, 0x06, struct kvm_user_trace_setup)
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#define KVM_TRACE_PAUSE _IO(KVMIO, 0x07)
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#define KVM_TRACE_DISABLE _IO(KVMIO, 0x08)
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/*
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* Extension capability list.
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*/
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#define KVM_CAP_IRQCHIP 0
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#define KVM_CAP_HLT 1
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#define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
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#define KVM_CAP_USER_MEMORY 3
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#define KVM_CAP_SET_TSS_ADDR 4
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#define KVM_CAP_VAPIC 6
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#define KVM_CAP_EXT_CPUID 7
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#define KVM_CAP_CLOCKSOURCE 8
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#define KVM_CAP_NR_VCPUS 9 /* returns max vcpus per vm */
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#define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
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#define KVM_CAP_PIT 11
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#define KVM_CAP_NOP_IO_DELAY 12
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#define KVM_CAP_PV_MMU 13
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#define KVM_CAP_MP_STATE 14
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/*
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* ioctls for VM fds
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*/
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#define KVM_SET_MEMORY_REGION _IOW(KVMIO, 0x40, struct kvm_memory_region)
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#define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
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#define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45)
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#define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46,\
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struct kvm_userspace_memory_region)
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#define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
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/*
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* KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
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* a vcpu fd.
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*/
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#define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
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#define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
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#define KVM_SET_MEMORY_ALIAS _IOW(KVMIO, 0x43, struct kvm_memory_alias)
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/* Device model IOC */
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#define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
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#define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
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#define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
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#define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
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#define KVM_CREATE_PIT _IO(KVMIO, 0x64)
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#define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
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#define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
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/*
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* ioctls for vcpu fds
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*/
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#define KVM_RUN _IO(KVMIO, 0x80)
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#define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
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#define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
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#define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
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#define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
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#define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
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#define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
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#define KVM_DEBUG_GUEST _IOW(KVMIO, 0x87, struct kvm_debug_guest)
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#define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
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#define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
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#define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
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#define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
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#define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
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#define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
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#define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
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#define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
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#define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
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#define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
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/* Available with KVM_CAP_VAPIC */
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#define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
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/* Available with KVM_CAP_VAPIC */
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#define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
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/* valid for virtual machine (for floating interrupt)_and_ vcpu */
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#define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
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/* store status for s390 */
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#define KVM_S390_STORE_STATUS_NOADDR (-1ul)
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#define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
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#define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
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/* initial ipl psw for s390 */
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#define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
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/* initial reset for s390 */
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#define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
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#define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
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#define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
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#endif
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