linux/arch/x86/kvm
Liran Alon b11494bcab KVM: nVMX: Do not mark vmcs02->apic_access_page as dirty when unpinning
vmcs->apic_access_page is simply a token that the hypervisor puts into
the PFN of a 4KB EPTE (or PTE if using shadow-paging) that triggers
APIC-access VMExit or APIC virtualization logic whenever a CPU running
in VMX non-root mode read/write from/to this PFN.

As every write either triggers an APIC-access VMExit or write is
performed on vmcs->virtual_apic_page, the PFN pointed to by
vmcs->apic_access_page should never actually be touched by CPU.

Therefore, there is no need to mark vmcs02->apic_access_page as dirty
after unpin it on L2->L1 emulated VMExit or when L1 exit VMX operation.

Reviewed-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
Reviewed-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-11-21 12:03:48 +01:00
..
vmx KVM: nVMX: Do not mark vmcs02->apic_access_page as dirty when unpinning 2019-11-21 12:03:48 +01:00
cpuid.c KVM: x86: implement MSR_IA32_TSX_CTRL effect on CPUID 2019-11-21 09:59:31 +01:00
cpuid.h x86/cpufeatures: Combine word 11 and 12 into a new scattered features word 2019-06-20 12:38:44 +02:00
debugfs.c KVM: no need to check return value of debugfs_create functions 2019-08-05 12:55:49 +02:00
emulate.c KVM: X86: avoid unused setup_syscalls_segments call when SYSCALL check failed 2019-11-15 11:44:02 +01:00
hyperv.c KVM: x86: hyper-v: set NoNonArchitecturalCoreSharing CPUID bit when SMT is impossible 2019-09-24 13:37:30 +02:00
hyperv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
i8254.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
i8254.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i8259.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
ioapic.c KVM: x86: Zero the IOAPIC scan request dest vCPUs bitmap 2019-11-20 14:23:24 +01:00
ioapic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq_comm.c KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
irq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320 2019-06-05 17:37:05 +02:00
irq.h KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
Kconfig kvm: x86: add host poll control msrs 2019-06-18 11:43:46 +02:00
kvm_cache_regs.h KVM: x86: Fold decache_cr3() into cache_reg() 2019-10-22 13:34:16 +02:00
lapic.c Merge branch 'kvm-tsx-ctrl' into HEAD 2019-11-21 12:03:40 +01:00
lapic.h Merge branch 'kvm-tsx-ctrl' into HEAD 2019-11-21 12:03:40 +01:00
Makefile KVM: x86: fix TRACE_INCLUDE_PATH and remove -I. header search paths 2019-01-25 19:12:37 +01:00
mmu_audit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
mmu.c Merge branch 'kvm-tsx-ctrl' into HEAD 2019-11-21 12:03:40 +01:00
mmu.h kvm: x86: mmu: Recovery of shattered NX large pages 2019-11-04 20:26:00 +01:00
mmutrace.h KVM: x86/mmu: Explicitly track only a single invalid mmu generation 2019-09-24 14:36:00 +02:00
mtrr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
page_track.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
paging_tmpl.h kvm: mmu: ITLB_MULTIHIT mitigation 2019-11-04 12:22:02 +01:00
pmu_amd.c KVM: x86/vPMU: Add lazy mechanism to release perf_event per vPMC 2019-11-15 11:44:10 +01:00
pmu.c KVM: x86/vPMU: Add lazy mechanism to release perf_event per vPMC 2019-11-15 11:44:10 +01:00
pmu.h KVM: VMX: Add helper to check reserved bits in IA32_PERF_GLOBAL_CTRL 2019-11-15 11:44:13 +01:00
svm.c Merge branch 'kvm-tsx-ctrl' into HEAD 2019-11-21 12:03:40 +01:00
trace.h KVM: nVMX: trace nested VM-Enter failures detected by H/W 2019-09-11 17:34:17 +02:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c Merge branch 'kvm-tsx-ctrl' into HEAD 2019-11-21 12:03:40 +01:00
x86.h KVM: x86: Prevent set vCPU into INIT/SIPI_RECEIVED state when INIT are latched 2019-11-15 11:44:00 +01:00