KVM: x86: Rename SMM tracepoint to make it reflect reality

Rename the SMM tracepoint, which handles both entering and exiting SMM,
from kvm_enter_smm to kvm_smm_transition.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210609185619.992058-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/trace.h

@@ -997,7 +997,7 @@ TRACE_EVENT(kvm_wait_lapic_expire,
 		  __entry->delta < 0 ? "early" : "late")
 );
 
-TRACE_EVENT(kvm_enter_smm,
+TRACE_EVENT(kvm_smm_transition,
 	TP_PROTO(unsigned int vcpu_id, u64 smbase, bool entering),
 	TP_ARGS(vcpu_id, smbase, entering),
 

arch/x86/kvm/x86.c

@@ -7544,7 +7544,7 @@ static int complete_emulated_pio(struct kvm_vcpu *vcpu);
 
 static void kvm_smm_changed(struct kvm_vcpu *vcpu, bool entering_smm)
 {
-	trace_kvm_enter_smm(vcpu->vcpu_id, vcpu->arch.smbase, entering_smm);
+	trace_kvm_smm_transition(vcpu->vcpu_id, vcpu->arch.smbase, entering_smm);
 
 	if (entering_smm) {
 		vcpu->arch.hflags |= HF_SMM_MASK;