From 9c3d370a8efaac49b0520617c9ab4e552aefbf1e Mon Sep 17 00:00:00 2001 From: Cathy Avery Date: Tue, 14 Apr 2020 16:11:06 -0400 Subject: KVM: SVM: Implement check_nested_events for NMI Migrate nested guest NMI intercept processing to new check_nested_events. Signed-off-by: Cathy Avery Message-Id: <20200414201107.22952-2-cavery@redhat.com> [Reorder clauses as NMIs have higher priority than IRQs; inject immediate vmexit as is now done for IRQ vmexits. - Paolo] Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/svm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'arch/x86/kvm/svm/svm.c') diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index c2a4e2d21676..f97f29e1eb49 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3070,9 +3070,10 @@ static int svm_nmi_allowed(struct kvm_vcpu *vcpu) struct vcpu_svm *svm = to_svm(vcpu); struct vmcb *vmcb = svm->vmcb; int ret; + ret = !(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) && !(svm->vcpu.arch.hflags & HF_NMI_MASK); - ret = ret && gif_set(svm) && nested_svm_nmi(svm); + ret = ret && gif_set(svm); return ret; } @@ -3150,9 +3151,6 @@ static void enable_nmi_window(struct kvm_vcpu *vcpu) return; /* STGI will cause a vm exit */ } - if (svm->nested.exit_required) - return; /* we're not going to run the guest yet */ - /* * Something prevents NMI from been injected. Single step over possible * problem (IRET or exception injection or interrupt shadow) -- cgit v1.2.3