diff options
| author | Gleb Natapov <gleb@redhat.com> | 2009-05-11 12:35:46 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-10 10:48:57 +0200 |
| commit | 3298b75c880d6f0fd70750233c0f3e71a72a5bfb (patch) | |
| tree | 8472e1747ac49a43d13e8c4c232415d107c6f3bc /arch/x86/kvm | |
| parent | KVM: s390: Verify memory in kvm run (diff) | |
| download | linux-3298b75c880d6f0fd70750233c0f3e71a72a5bfb.tar.xz linux-3298b75c880d6f0fd70750233c0f3e71a72a5bfb.zip | |
KVM: Unprotect a page if #PF happens during NMI injection.
It is done for exception and interrupt already.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/svm.c | 3 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.h | 6 |
3 files changed, 8 insertions, 3 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 8b5ffbd55c11..ac3d5ba48d61 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1122,8 +1122,7 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) if (npt_enabled) svm_flush_tlb(&svm->vcpu); else { - if (svm->vcpu.arch.interrupt.pending || - svm->vcpu.arch.exception.pending) + if (kvm_event_needs_reinjection(&svm->vcpu)) kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address); } return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index f3ab27b5a6b2..8981654ad061 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2615,7 +2615,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) cr2 = vmcs_readl(EXIT_QUALIFICATION); KVMTRACE_3D(PAGE_FAULT, vcpu, error_code, (u32)cr2, (u32)((u64)cr2 >> 32), handler); - if (vcpu->arch.interrupt.pending || vcpu->arch.exception.pending) + if (kvm_event_needs_reinjection(vcpu)) kvm_mmu_unprotect_page_virt(vcpu, cr2); return kvm_mmu_page_fault(vcpu, cr2, error_code); } diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 39350b252725..21203d421276 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -30,4 +30,10 @@ static inline u8 kvm_pop_irq(struct kvm_vcpu *vcpu) clear_bit(word_index, &vcpu->arch.irq_summary); return irq; } + +static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu) +{ + return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending || + vcpu->arch.nmi_injected; +} #endif |