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| author | Gleb Natapov <gleb@redhat.com> | 2009-05-11 13:35:49 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-10 11:48:58 +0300 |
| commit | f629cf8485c9e1063fd8b915fa3bde80917400a1 (patch) | |
| tree | 1d50f714c589de5b3971f463484ec4fbae38b81d /arch/x86 | |
| parent | 923c61bbc6413e87e5f6b0bae663d202a8de0537 (diff) | |
| download | op-kernel-dev-f629cf8485c9e1063fd8b915fa3bde80917400a1.zip op-kernel-dev-f629cf8485c9e1063fd8b915fa3bde80917400a1.tar.gz | |
KVM: skip_emulated_instruction() decode instruction if size is not known
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index ac3d5ba..1315ce0 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -228,7 +228,9 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu) struct vcpu_svm *svm = to_svm(vcpu); if (!svm->next_rip) { - printk(KERN_DEBUG "%s: NOP\n", __func__); + if (emulate_instruction(vcpu, vcpu->run, 0, 0, EMULTYPE_SKIP) != + EMULATE_DONE) + printk(KERN_DEBUG "%s: NOP\n", __func__); return; } if (svm->next_rip - kvm_rip_read(vcpu) > MAX_INST_SIZE) @@ -1868,11 +1870,8 @@ static int task_switch_interception(struct vcpu_svm *svm, if (reason != TASK_SWITCH_GATE || int_type == SVM_EXITINTINFO_TYPE_SOFT || (int_type == SVM_EXITINTINFO_TYPE_EXEPT && - (int_vec == OF_VECTOR || int_vec == BP_VECTOR))) { - if (emulate_instruction(&svm->vcpu, kvm_run, 0, 0, - EMULTYPE_SKIP) != EMULATE_DONE) - return 0; - } + (int_vec == OF_VECTOR || int_vec == BP_VECTOR))) + skip_emulated_instruction(&svm->vcpu); return kvm_task_switch(&svm->vcpu, tss_selector, reason); } |
