diff options
author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-05-16 13:24:27 -0400 |
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committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-05-16 13:24:27 -0400 |
commit | 0a1f094ea7bfb405b96f53e5a6c55759e29e0987 (patch) | |
tree | 0d1beed2b746cddce8ae295a4117003437b30533 /arch/x86/kvm/svm.c | |
parent | 0f106b4f7fe6ad697cff5c02f0edd80bb066fabe (diff) | |
parent | 678562e527fd9979f1765ffa1eb34738fc174425 (diff) |
Merge commit 'v2.6.38.6' into linaro-2.6.38
Diffstat (limited to 'arch/x86/kvm/svm.c')
-rw-r--r-- | arch/x86/kvm/svm.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index b14429dda24..42342e8cc18 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -135,6 +135,8 @@ struct vcpu_svm { u32 *msrpm; + ulong nmi_iret_rip; + struct nested_state nested; bool nmi_singlestep; @@ -2653,6 +2655,7 @@ static int iret_interception(struct vcpu_svm *svm) ++svm->vcpu.stat.nmi_window_exits; clr_intercept(svm, INTERCEPT_IRET); svm->vcpu.arch.hflags |= HF_IRET_MASK; + svm->nmi_iret_rip = kvm_rip_read(&svm->vcpu); return 1; } @@ -3474,7 +3477,12 @@ static void svm_complete_interrupts(struct vcpu_svm *svm) svm->int3_injected = 0; - if (svm->vcpu.arch.hflags & HF_IRET_MASK) { + /* + * If we've made progress since setting HF_IRET_MASK, we've + * executed an IRET and can allow NMI injection. + */ + if ((svm->vcpu.arch.hflags & HF_IRET_MASK) + && kvm_rip_read(&svm->vcpu) != svm->nmi_iret_rip) { svm->vcpu.arch.hflags &= ~(HF_NMI_MASK | HF_IRET_MASK); kvm_make_request(KVM_REQ_EVENT, &svm->vcpu); } |