KVM: SVM: Defer nmi processing until switch to host state is complete
If we stgi() too soon, nmis can reach the processor even though interrupts are disabled, catching it in a half-switched state. Delay the stgi() until we're done switching. Signed-off-by: Avi Kivity <avi@qumranet.com>
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@ -1585,10 +1585,6 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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#endif
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: "cc", "memory" );
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local_irq_disable();
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stgi();
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if ((svm->vmcb->save.dr7 & 0xff))
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load_db_regs(svm->host_db_regs);
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@ -1605,6 +1601,10 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
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reload_tss(vcpu);
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local_irq_disable();
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stgi();
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svm->next_rip = 0;
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}
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