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| author | Lai Jiangshan <laijs@linux.alibaba.com> | 2021-11-24 13:20:46 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-11-26 14:14:21 +0100 |
| commit | 05b29633c7a956d5675f5fbba70db0d26aa5e73e (patch) | |
| tree | 50834921a7ecf3b0d01dde1b44760f278892ed17 /arch | |
| parent | KVM: X86: Fix when shadow_root_level=5 && guest root_level<4 (diff) | |
| download | linux-05b29633c7a956d5675f5fbba70db0d26aa5e73e.tar.xz linux-05b29633c7a956d5675f5fbba70db0d26aa5e73e.zip | |
KVM: X86: Use vcpu->arch.walk_mmu for kvm_mmu_invlpg()
INVLPG operates on guest virtual address, which are represented by
vcpu->arch.walk_mmu. In nested virtualization scenarios,
kvm_mmu_invlpg() was using the wrong MMU structure; if L2's invlpg were
emulated by L0 (in practice, it hardly happen) when nested two-dimensional
paging is enabled, the call to ->tlb_flush_gva() would be skipped and
the hardware TLB entry would not be invalidated.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Message-Id: <20211124122055.64424-5-jiangshanlai@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index d7ae369ec8c2..5942e9c6dd6e 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -5363,7 +5363,7 @@ void kvm_mmu_invalidate_gva(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva) { - kvm_mmu_invalidate_gva(vcpu, vcpu->arch.mmu, gva, INVALID_PAGE); + kvm_mmu_invalidate_gva(vcpu, vcpu->arch.walk_mmu, gva, INVALID_PAGE); ++vcpu->stat.invlpg; } EXPORT_SYMBOL_GPL(kvm_mmu_invlpg); |