mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-29 05:55:02 +08:00
36824f198c
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration
and apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of live migration
- Support for initializing the PDPTRs without loading them from memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this has
been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap on
AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmDV9UYUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroOIRgf/XX8fKLh24RnTOs2ldIu2AfRGVrT4
QMrr8MxhmtukBAszk2xKvBt8/6gkUjdaIC3xqEnVjxaDaUvZaEtP7CQlF5JV45rn
iv1zyxUKucXrnIOr+gCioIT7qBlh207zV35ArKioP9Y83cWx9uAs22pfr6g+7RxO
h8bJZlJbSG6IGr3voANCIb9UyjU1V/l8iEHqRwhmr/A5rARPfD7g8lfMEQeGkzX6
+/UydX2fumB3tl8e2iMQj6vLVdSOsCkehvpHK+Z33EpkKhan7GwZ2sZ05WmXV/nY
QLAYfD10KegoNWl5Ay4GTp4hEAIYVrRJCLC+wnLdc0U8udbfCuTC31LK4w==
=NcRh
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"This covers all architectures (except MIPS) so I don't expect any
other feature pull requests this merge window.
ARM:
- Add MTE support in guests, complete with tag save/restore interface
- Reduce the impact of CMOs by moving them in the page-table code
- Allow device block mappings at stage-2
- Reduce the footprint of the vmemmap in protected mode
- Support the vGIC on dumb systems such as the Apple M1
- Add selftest infrastructure to support multiple configuration and
apply that to PMU/non-PMU setups
- Add selftests for the debug architecture
- The usual crop of PMU fixes
PPC:
- Support for the H_RPT_INVALIDATE hypercall
- Conversion of Book3S entry/exit to C
- Bug fixes
S390:
- new HW facilities for guests
- make inline assembly more robust with KASAN and co
x86:
- Allow userspace to handle emulation errors (unknown instructions)
- Lazy allocation of the rmap (host physical -> guest physical
address)
- Support for virtualizing TSC scaling on VMX machines
- Optimizations to avoid shattering huge pages at the beginning of
live migration
- Support for initializing the PDPTRs without loading them from
memory
- Many TLB flushing cleanups
- Refuse to load if two-stage paging is available but NX is not (this
has been a requirement in practice for over a year)
- A large series that separates the MMU mode (WP/SMAP/SMEP etc.) from
CR0/CR4/EFER, using the MMU mode everywhere once it is computed
from the CPU registers
- Use PM notifier to notify the guest about host suspend or hibernate
- Support for passing arguments to Hyper-V hypercalls using XMM
registers
- Support for Hyper-V TLB flush hypercalls and enlightened MSR bitmap
on AMD processors
- Hide Hyper-V hypercalls that are not included in the guest CPUID
- Fixes for live migration of virtual machines that use the Hyper-V
"enlightened VMCS" optimization of nested virtualization
- Bugfixes (not many)
Generic:
- Support for retrieving statistics without debugfs
- Cleanups for the KVM selftests API"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (314 commits)
KVM: x86: rename apic_access_page_done to apic_access_memslot_enabled
kvm: x86: disable the narrow guest module parameter on unload
selftests: kvm: Allows userspace to handle emulation errors.
kvm: x86: Allow userspace to handle emulation errors
KVM: x86/mmu: Let guest use GBPAGES if supported in hardware and TDP is on
KVM: x86/mmu: Get CR4.SMEP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Get CR0.WP from MMU, not vCPU, in shadow page fault
KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT
KVM: x86/mmu: Optimize and clean up so called "last nonleaf level" logic
KVM: x86: Enhance comments for MMU roles and nested transition trickiness
KVM: x86/mmu: WARN on any reserved SPTE value when making a valid SPTE
KVM: x86/mmu: Add helpers to do full reserved SPTE checks w/ generic MMU
KVM: x86/mmu: Use MMU's role to determine PTTYPE
KVM: x86/mmu: Collapse 32-bit PAE and 64-bit statements for helpers
KVM: x86/mmu: Add a helper to calculate root from role_regs
KVM: x86/mmu: Add helper to update paging metadata
KVM: x86/mmu: Don't update nested guest's paging bitmasks if CR0.PG=0
KVM: x86/mmu: Consolidate reset_rsvds_bits_mask() calls
KVM: x86/mmu: Use MMU role_regs to get LA57, and drop vCPU LA57 helper
KVM: x86/mmu: Get nested MMU's root level from the MMU's role
...
133 lines
3.6 KiB
Plaintext
133 lines
3.6 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# KVM configuration
|
|
#
|
|
|
|
source "virt/kvm/Kconfig"
|
|
|
|
menuconfig VIRTUALIZATION
|
|
bool "Virtualization"
|
|
depends on HAVE_KVM || X86
|
|
default y
|
|
help
|
|
Say Y here to get to see options for using your Linux host to run other
|
|
operating systems inside virtual machines (guests).
|
|
This option alone does not add any kernel code.
|
|
|
|
If you say N, all options in this submenu will be skipped and disabled.
|
|
|
|
if VIRTUALIZATION
|
|
|
|
config KVM
|
|
tristate "Kernel-based Virtual Machine (KVM) support"
|
|
depends on HAVE_KVM
|
|
depends on HIGH_RES_TIMERS
|
|
depends on X86_LOCAL_APIC
|
|
select PREEMPT_NOTIFIERS
|
|
select MMU_NOTIFIER
|
|
select HAVE_KVM_IRQCHIP
|
|
select HAVE_KVM_IRQFD
|
|
select IRQ_BYPASS_MANAGER
|
|
select HAVE_KVM_IRQ_BYPASS
|
|
select HAVE_KVM_IRQ_ROUTING
|
|
select HAVE_KVM_EVENTFD
|
|
select KVM_ASYNC_PF
|
|
select USER_RETURN_NOTIFIER
|
|
select KVM_MMIO
|
|
select SCHED_INFO
|
|
select PERF_EVENTS
|
|
select HAVE_KVM_MSI
|
|
select HAVE_KVM_CPU_RELAX_INTERCEPT
|
|
select HAVE_KVM_NO_POLL
|
|
select KVM_XFER_TO_GUEST_WORK
|
|
select KVM_GENERIC_DIRTYLOG_READ_PROTECT
|
|
select KVM_VFIO
|
|
select SRCU
|
|
select HAVE_KVM_PM_NOTIFIER if PM
|
|
help
|
|
Support hosting fully virtualized guest machines using hardware
|
|
virtualization extensions. You will need a fairly recent
|
|
processor equipped with virtualization extensions. You will also
|
|
need to select one or more of the processor modules below.
|
|
|
|
This module provides access to the hardware capabilities through
|
|
a character device node named /dev/kvm.
|
|
|
|
To compile this as a module, choose M here: the module
|
|
will be called kvm.
|
|
|
|
If unsure, say N.
|
|
|
|
config KVM_WERROR
|
|
bool "Compile KVM with -Werror"
|
|
# KASAN may cause the build to fail due to larger frames
|
|
default y if X86_64 && !KASAN
|
|
# We use the dependency on !COMPILE_TEST to not be enabled
|
|
# blindly in allmodconfig or allyesconfig configurations
|
|
depends on KVM
|
|
depends on (X86_64 && !KASAN) || !COMPILE_TEST
|
|
depends on EXPERT
|
|
help
|
|
Add -Werror to the build flags for KVM.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config KVM_INTEL
|
|
tristate "KVM for Intel (and compatible) processors support"
|
|
depends on KVM && IA32_FEAT_CTL
|
|
help
|
|
Provides support for KVM on processors equipped with Intel's VT
|
|
extensions, a.k.a. Virtual Machine Extensions (VMX).
|
|
|
|
To compile this as a module, choose M here: the module
|
|
will be called kvm-intel.
|
|
|
|
config X86_SGX_KVM
|
|
bool "Software Guard eXtensions (SGX) Virtualization"
|
|
depends on X86_SGX && KVM_INTEL
|
|
help
|
|
|
|
Enables KVM guests to create SGX enclaves.
|
|
|
|
This includes support to expose "raw" unreclaimable enclave memory to
|
|
guests via a device node, e.g. /dev/sgx_vepc.
|
|
|
|
If unsure, say N.
|
|
|
|
config KVM_AMD
|
|
tristate "KVM for AMD processors support"
|
|
depends on KVM
|
|
help
|
|
Provides support for KVM on AMD processors equipped with the AMD-V
|
|
(SVM) extensions.
|
|
|
|
To compile this as a module, choose M here: the module
|
|
will be called kvm-amd.
|
|
|
|
config KVM_AMD_SEV
|
|
def_bool y
|
|
bool "AMD Secure Encrypted Virtualization (SEV) support"
|
|
depends on KVM_AMD && X86_64
|
|
depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m)
|
|
help
|
|
Provides support for launching Encrypted VMs (SEV) and Encrypted VMs
|
|
with Encrypted State (SEV-ES) on AMD processors.
|
|
|
|
config KVM_XEN
|
|
bool "Support for Xen hypercall interface"
|
|
depends on KVM
|
|
help
|
|
Provides KVM support for the hosting Xen HVM guests and
|
|
passing Xen hypercalls to userspace.
|
|
|
|
If in doubt, say "N".
|
|
|
|
config KVM_MMU_AUDIT
|
|
bool "Audit KVM MMU"
|
|
depends on KVM && TRACEPOINTS
|
|
help
|
|
This option adds a R/W kVM module parameter 'mmu_audit', which allows
|
|
auditing of KVM MMU events at runtime.
|
|
|
|
endif # VIRTUALIZATION
|