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| author | Junaid Shahid <junaids@google.com> | 2018-06-27 14:59:14 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-08-06 17:58:57 +0200 |
| commit | eb4b248e152d3ecf189b9d32c04961360dbd938a (patch) | |
| tree | 7fa1aff6366d64f020fe97537ecad18cc5f08b0f /arch/x86/kvm/mmu.c | |
| parent | c9470a2e28479e97eb44d926ea7bbb5709ad9d6b (diff) | |
| download | lwn-eb4b248e152d3ecf189b9d32c04961360dbd938a.tar.gz lwn-eb4b248e152d3ecf189b9d32c04961360dbd938a.zip | |
kvm: vmx: Support INVPCID in shadow paging mode
Implement support for INVPCID in shadow paging mode as well.
Signed-off-by: Junaid Shahid <junaids@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu.c')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index d3a04cf6514b..2af15db12ccd 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5187,6 +5187,24 @@ void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva) } EXPORT_SYMBOL_GPL(kvm_mmu_invlpg); +void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid) +{ + struct kvm_mmu *mmu = &vcpu->arch.mmu; + + if (pcid == kvm_get_active_pcid(vcpu)) { + mmu->invlpg(vcpu, gva); + kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); + } + + ++vcpu->stat.invlpg; + + /* + * Mappings not reachable via the current cr3 will be synced when + * switching to that cr3, so nothing needs to be done here for them. + */ +} +EXPORT_SYMBOL_GPL(kvm_mmu_invpcid_gva); + void kvm_enable_tdp(void) { tdp_enabled = true; |