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| author | Jan Kiszka <jan.kiszka@siemens.com> | 2014-03-07 20:03:15 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-03-11 08:41:47 +0100 |
| commit | c9a7953f09bbe2b66050ebf97e0532eaeefbc9f3 (patch) | |
| tree | 8a4387796e3f9946cea1725566e584dff525c3f8 /arch/x86/kvm/svm.c | |
| parent | 220c56729766444f3dd823f740a147ca6d82c4c6 (diff) | |
| download | op-kernel-dev-c9a7953f09bbe2b66050ebf97e0532eaeefbc9f3.zip op-kernel-dev-c9a7953f09bbe2b66050ebf97e0532eaeefbc9f3.tar.gz | |
KVM: x86: Remove return code from enable_irq/nmi_window
It's no longer possible to enter enable_irq_window in guest mode when
L1 intercepts external interrupts and we are entering L2. This is now
caught in vcpu_enter_guest. So we can remove the check from the VMX
version of enable_irq_window, thus the need to return an error code from
both enable_irq_window and enable_nmi_window.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 64d9bb9..1e8616e 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3650,7 +3650,7 @@ static int svm_interrupt_allowed(struct kvm_vcpu *vcpu) return ret; } -static int enable_irq_window(struct kvm_vcpu *vcpu) +static void enable_irq_window(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); @@ -3664,16 +3664,15 @@ static int enable_irq_window(struct kvm_vcpu *vcpu) svm_set_vintr(svm); svm_inject_irq(svm, 0x0); } - return 0; } -static int enable_nmi_window(struct kvm_vcpu *vcpu) +static void enable_nmi_window(struct kvm_vcpu *vcpu) { struct vcpu_svm *svm = to_svm(vcpu); if ((svm->vcpu.arch.hflags & (HF_NMI_MASK | HF_IRET_MASK)) == HF_NMI_MASK) - return 0; /* IRET will cause a vm exit */ + return; /* IRET will cause a vm exit */ /* * Something prevents NMI from been injected. Single step over possible @@ -3682,7 +3681,6 @@ static int enable_nmi_window(struct kvm_vcpu *vcpu) svm->nmi_singlestep = true; svm->vmcb->save.rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF); update_db_bp_intercept(vcpu); - return 0; } static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr) |
