diff options
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index f994c6df78b..8b5ffbd55c1 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -202,6 +202,27 @@ static int is_external_interrupt(u32 info) return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR); } +static u32 svm_get_interrupt_shadow(struct kvm_vcpu *vcpu, int mask) +{ + struct vcpu_svm *svm = to_svm(vcpu); + u32 ret = 0; + + if (svm->vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) + ret |= X86_SHADOW_INT_STI | X86_SHADOW_INT_MOV_SS; + return ret & mask; +} + +static void svm_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask) +{ + struct vcpu_svm *svm = to_svm(vcpu); + + if (mask == 0) + svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK; + else + svm->vmcb->control.int_state |= SVM_INTERRUPT_SHADOW_MASK; + +} + static void skip_emulated_instruction(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -215,7 +236,7 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu) __func__, kvm_rip_read(vcpu), svm->next_rip); kvm_rip_write(vcpu, svm->next_rip); - svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK; + svm_set_interrupt_shadow(vcpu, 0); } static int has_svm(void) @@ -2259,12 +2280,6 @@ static void pre_svm_run(struct vcpu_svm *svm) new_asid(svm, svm_data); } -static void svm_drop_interrupt_shadow(struct kvm_vcpu *vcpu) -{ - struct vcpu_svm *svm = to_svm(vcpu); - svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK; -} - static void svm_inject_nmi(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -2667,6 +2682,8 @@ static struct kvm_x86_ops svm_x86_ops = { .run = svm_vcpu_run, .handle_exit = handle_exit, .skip_emulated_instruction = skip_emulated_instruction, + .set_interrupt_shadow = svm_set_interrupt_shadow, + .get_interrupt_shadow = svm_get_interrupt_shadow, .patch_hypercall = svm_patch_hypercall, .set_irq = svm_set_irq, .set_nmi = svm_inject_nmi, @@ -2676,7 +2693,6 @@ static struct kvm_x86_ops svm_x86_ops = { .enable_nmi_window = enable_nmi_window, .enable_irq_window = enable_irq_window, .update_cr8_intercept = update_cr8_intercept, - .drop_interrupt_shadow = svm_drop_interrupt_shadow, .set_tss_addr = svm_set_tss_addr, .get_tdp_level = get_npt_level, |