KVM: VMX: read idt_vectoring_info a bit earlier

trace_kvm_exit prints this value (using vmx_get_exit_info)
so it makes sense to read it before the trace point.

Fixes: dcf068da ("KVM: VMX: Introduce generic fastpath handler")
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210217145718.1217358-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

arch/x86/kvm/vmx/vmx.c

@@ -6841,13 +6841,15 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	if (unlikely((u16)vmx->exit_reason.basic == EXIT_REASON_MCE_DURING_VMENTRY))
 		kvm_machine_check();
 
+	if (likely(!vmx->exit_reason.failed_vmentry))
+		vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
+
 	trace_kvm_exit(vmx->exit_reason.full, vcpu, KVM_ISA_VMX);
 
 	if (unlikely(vmx->exit_reason.failed_vmentry))
 		return EXIT_FASTPATH_NONE;
 
 	vmx->loaded_vmcs->launched = 1;
-	vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
 
 	vmx_recover_nmi_blocking(vmx);
 	vmx_complete_interrupts(vmx);