diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 10e718db990..9f7277273a2 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -129,6 +129,21 @@ static inline bool is_nested(struct vcpu_svm *svm) return svm->nested_vmcb; } +static inline void enable_gif(struct vcpu_svm *svm) +{ + svm->vcpu.arch.hflags |= HF_GIF_MASK; +} + +static inline void disable_gif(struct vcpu_svm *svm) +{ + svm->vcpu.arch.hflags &= ~HF_GIF_MASK; +} + +static inline bool gif_set(struct vcpu_svm *svm) +{ + return !!(svm->vcpu.arch.hflags & HF_GIF_MASK); +} + static unsigned long iopm_base; struct kvm_ldttss_desc { @@ -621,7 +636,9 @@ static void init_vmcb(struct vcpu_svm *svm) force_new_asid(&svm->vcpu); svm->nested_vmcb = 0; - svm->vcpu.arch.hflags = HF_GIF_MASK; + svm->vcpu.arch.hflags = 0; + + enable_gif(svm); } static int svm_vcpu_reset(struct kvm_vcpu *vcpu) @@ -1629,7 +1646,7 @@ static int nested_svm_vmexit_real(struct vcpu_svm *svm, void *arg1, svm->vmcb->save.cpl = 0; svm->vmcb->control.exit_int_info = 0; - svm->vcpu.arch.hflags &= ~HF_GIF_MASK; + disable_gif(svm); /* Exit nested SVM mode */ svm->nested_vmcb = 0; @@ -1761,7 +1778,7 @@ static int nested_svm_vmrun(struct vcpu_svm *svm, void *arg1, svm->vmcb->control.event_inj = nested_vmcb->control.event_inj; svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err; - svm->vcpu.arch.hflags |= HF_GIF_MASK; + enable_gif(svm); return 0; } @@ -1850,7 +1867,7 @@ static int stgi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; skip_emulated_instruction(&svm->vcpu); - svm->vcpu.arch.hflags |= HF_GIF_MASK; + enable_gif(svm); return 1; } @@ -1863,7 +1880,7 @@ static int clgi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; skip_emulated_instruction(&svm->vcpu); - svm->vcpu.arch.hflags &= ~HF_GIF_MASK; + disable_gif(svm); /* After a CLGI no interrupts should come */ svm_clear_vintr(svm); @@ -2352,7 +2369,7 @@ static void svm_set_irq(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); - BUG_ON(!(svm->vcpu.arch.hflags & HF_GIF_MASK)); + BUG_ON(!(gif_set(svm))); svm->vmcb->control.event_inj = vcpu->arch.interrupt.nr | SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR; @@ -2383,7 +2400,7 @@ static int svm_interrupt_allowed(struct kvm_vcpu *vcpu) struct vmcb *vmcb = svm->vmcb; return (vmcb->save.rflags & X86_EFLAGS_IF) && !(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) && - (svm->vcpu.arch.hflags & HF_GIF_MASK) && + gif_set(svm) && !is_nested(svm); } @@ -2398,7 +2415,7 @@ static void enable_irq_window(struct kvm_vcpu *vcpu) * GIF becomes 1, because that's a separate STGI/VMRUN intercept. * The next time we get that intercept, this function will be * called again though and we'll get the vintr intercept. */ - if (svm->vcpu.arch.hflags & HF_GIF_MASK) { + if (gif_set(svm)) { svm_set_vintr(svm); svm_inject_irq(svm, 0x0); } |