Maxim Levitsky 249f324933 KVM: x86: mark synthetic SMM vmexit as SVM_EXIT_SW
Use a dummy unused vmexit reason to mark the 'VM exit' that is happening
when kvm exits 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 due to a stale vmexit reason in the vmcb.
If SVM_EXIT_SW somehow reaches svm_invoke_exit_handler(), instead,
svm_check_exit_valid() will return false and a WARN will be logged.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220301135526.136554-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-04-02 05:41:12 -04:00
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