[PATCH] SVM: do not generate "external interrupt exit" if other exit is pending

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Nested SVM checks for external interrupt after injecting nested exception.
In case there is external interrupt pending the code generates "external
interrupt exit" and overwrites previous exit info. If previously injected
exception already generated exit it will be lost.

Signed-off-by: Gleb Natapov <gleb@xxxxxxxxxx>
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 43f5558..1a1f86b 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1707,6 +1707,9 @@ static inline bool nested_svm_intr(struct vcpu_svm *svm)
 	if (!(svm->vcpu.arch.hflags & HF_HIF_MASK))
 		return false;
 
+	if (svm->nested.exit_required)
+		return false;
+
 	svm->vmcb->control.exit_code   = SVM_EXIT_INTR;
 	svm->vmcb->control.exit_info_1 = 0;
 	svm->vmcb->control.exit_info_2 = 0;
--
			Gleb.
--
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