From bdc2d7ad10724de31463a0cdbd88b0ad7353a6de Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 14 Jul 2022 15:44:53 +0300 Subject: KVM: SVM: fix task switch emulation on INTn instruction. Recently KVM's SVM code switched to re-injecting software interrupt events, if something prevented their delivery. Task switch due to task gate in the IDT, however is an exception to this rule, because in this case, INTn instruction causes a task switch intercept and its emulation completes the INTn emulation as well. Add a missing case to task_switch_interception for that. This fixes 32 bit kvm unit test taskswitch2. Fixes: 7e5b5ef8dca322 ("KVM: SVM: Re-inject INTn instead of retrying the insn on "failure"") Signed-off-by: Maxim Levitsky Reviewed-by: Maciej S. Szmigiero Message-Id: <20220714124453.188655-1-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/svm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 37ce061dfc76..1d8eb3333f46 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2446,6 +2446,7 @@ static int task_switch_interception(struct kvm_vcpu *vcpu) kvm_clear_exception_queue(vcpu); break; case SVM_EXITINTINFO_TYPE_INTR: + case SVM_EXITINTINFO_TYPE_SOFT: kvm_clear_interrupt_queue(vcpu); break; default: -- cgit v1.2.3