diff options
| -rw-r--r-- | arch/x86/kvm/vmx/nested.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 7ecb555e385a..8f3ff07c7e66 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -5255,6 +5255,20 @@ static int handle_invvpid(struct kvm_vcpu *vcpu) return kvm_skip_emulated_instruction(vcpu); } + /* + * Sync the shadow page tables if EPT is disabled, L1 is invalidating + * linear mappings for L2 (tagged with L2's VPID). Free all roots as + * VPIDs are not tracked in the MMU role. + * + * Note, this operates on root_mmu, not guest_mmu, as L1 and L2 share + * an MMU when EPT is disabled. + * + * TODO: sync only the affected SPTEs for INVDIVIDUAL_ADDR. + */ + if (!enable_ept) + kvm_mmu_free_roots(vcpu, &vcpu->arch.root_mmu, + KVM_MMU_ROOTS_ALL); + return nested_vmx_succeed(vcpu); } |