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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-03 10:34:36 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-03 10:34:36 +0200 |
| commit | b5259d944279d0b7e78a83849a352d8ba0447c4c (patch) | |
| tree | 42f0e7dc404bc776f9a736c17f52c121da166fc1 /arch/x86/kvm/svm.c | |
| parent | 1c50b728c3e734150b8a4a8310ce3e01bc5c70be (diff) | |
| parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) | |
Merge commit 'v2.6.27-rc8' into core/rcu
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index e2ee264740c..8233b86c778 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -62,6 +62,7 @@ static int npt = 1; module_param(npt, int, S_IRUGO); static void kvm_reput_irq(struct vcpu_svm *svm); +static void svm_flush_tlb(struct kvm_vcpu *vcpu); static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu) { @@ -878,6 +879,10 @@ set: static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) { unsigned long host_cr4_mce = read_cr4() & X86_CR4_MCE; + unsigned long old_cr4 = to_svm(vcpu)->vmcb->save.cr4; + + if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE)) + force_new_asid(vcpu); vcpu->arch.cr4 = cr4; if (!npt_enabled) @@ -1027,6 +1032,13 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) KVMTRACE_3D(TDP_FAULT, &svm->vcpu, error_code, (u32)fault_address, (u32)(fault_address >> 32), handler); + /* + * FIXME: Tis shouldn't be necessary here, but there is a flush + * missing in the MMU code. Until we find this bug, flush the + * complete TLB here on an NPF + */ + if (npt_enabled) + svm_flush_tlb(&svm->vcpu); if (event_injection) kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address); |