Commit a9fa7cb6 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

KVM: x86: replace is_smm checks with kvm_x86_ops.smi_allowed 



Do not hardcode is_smm so that all the architectural conditions for
blocking SMIs are listed in a single place.  Well, in two places because
this introduces some code duplication between Intel and AMD.

This ensures that nested SVM obeys GIF in kvm_vcpu_has_events.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 88c604b6

arch/x86/kvm/svm/svm.c

+1 −1
Original line number Diff line number Diff line
@@ -3783,7 +3783,7 @@ static bool svm_smi_allowed(struct kvm_vcpu *vcpu) 
		return false;

	}



	return true;

	return !is_smm(vcpu);

}



static int svm_pre_enter_smm(struct kvm_vcpu *vcpu, char *smstate)

arch/x86/kvm/vmx/vmx.c

+1 −1
Original line number Diff line number Diff line
@@ -7680,7 +7680,7 @@ static bool vmx_smi_allowed(struct kvm_vcpu *vcpu) 
	/* we need a nested vmexit to enter SMM, postpone if run is pending */

	if (to_vmx(vcpu)->nested.nested_run_pending)

		return false;

	return true;

	return !is_smm(vcpu);

}



static int vmx_pre_enter_smm(struct kvm_vcpu *vcpu, char *smstate)

arch/x86/kvm/x86.c

+3 −3
Original line number Diff line number Diff line
@@ -7764,8 +7764,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu) 
	if (kvm_event_needs_reinjection(vcpu))

		return 0;



	if (vcpu->arch.smi_pending && !is_smm(vcpu) &&

	    kvm_x86_ops.smi_allowed(vcpu)) {

	if (vcpu->arch.smi_pending && kvm_x86_ops.smi_allowed(vcpu)) {

		vcpu->arch.smi_pending = false;

		++vcpu->arch.smi_count;

		enter_smm(vcpu);
@@ -10206,7 +10205,8 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu) 
		return true;



	if (kvm_test_request(KVM_REQ_SMI, vcpu) ||

	    (vcpu->arch.smi_pending && !is_smm(vcpu)))

	    (vcpu->arch.smi_pending &&

	     kvm_x86_ops.smi_allowed(vcpu)))

		return true;



	if (kvm_arch_interrupt_allowed(vcpu) &&

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