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| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-03-20 14:28:27 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-04-21 09:12:56 -0400 |
| commit | 4a632ac6ca66fb29b94a16495624c58f4d313f2f (patch) | |
| tree | 53e2d7f264074c7b09fa6b0393cb40d33dd4d636 /arch/x86/kvm/x86.c | |
| parent | b869855badd1387bd12415e4d5571e931825b546 (diff) | |
| download | lwn-4a632ac6ca66fb29b94a16495624c58f4d313f2f.tar.gz lwn-4a632ac6ca66fb29b94a16495624c58f4d313f2f.zip | |
KVM: x86/mmu: Add separate override for MMU sync during fast CR3 switch
Add a separate "skip" override for MMU sync, a future change to avoid
TLB flushes on nested VMX transitions may need to sync the MMU even if
the TLB flush is unnecessary.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200320212833.3507-32-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 90aa4abbc0a6..7bf5193ed9b4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1031,7 +1031,7 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) !load_pdptrs(vcpu, vcpu->arch.walk_mmu, cr3)) return 1; - kvm_mmu_new_cr3(vcpu, cr3, skip_tlb_flush); + kvm_mmu_new_cr3(vcpu, cr3, skip_tlb_flush, skip_tlb_flush); vcpu->arch.cr3 = cr3; kvm_register_mark_available(vcpu, VCPU_EXREG_CR3); |