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| author | David S. Miller <davem@davemloft.net> | 2008-10-01 06:12:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-01 06:12:56 -0700 |
| commit | b262e60309e1b0eb25d300c7e739427d5316abb1 (patch) | |
| tree | bf319d78c79bb5cb617ff0c8340c73aa349bba15 /arch/x86/kvm/svm.c | |
| parent | 93c8b90f01f0dc73891da4e84b26524b61d29d66 (diff) | |
| parent | 0523820482dcb42784572ffd2296c2f08c275a2b (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/ath9k/core.c
drivers/net/wireless/ath9k/main.c
net/core/dev.c
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); |