[PATCH RESEND 06/30] KVM: x86: mark syntethic SMM vmexit as SVM_EXIT_SW

From: Maxim Levitsky
Date: Mon Feb 07 2022 - 11:01:03 EST


Use a dummy unused vmexit reason to mark the 'VM exit'
that is happening when we exit to handle SMM,
which is not a real VM exit.

This makes it a bit easier to read the KVM trace,
and avoids other potential problems.

Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
---
arch/x86/kvm/svm/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 8013be9edf27c..9a4e299ed5673 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -4194,7 +4194,7 @@ static int svm_enter_smm(struct kvm_vcpu *vcpu, char *smstate)
svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP];
svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP];

- ret = nested_svm_vmexit(svm);
+ ret = nested_svm_simple_vmexit(svm, SVM_EXIT_SW);
if (ret)
return ret;

--
2.26.3