Commit 95b28ac9 authored by Haiwei Li's avatar Haiwei Li Committed by Paolo Bonzini
Browse files

KVM: SVM: Add tracepoint for cr_interception 



Add trace_kvm_cr_write and trace_kvm_cr_read for svm.

Signed-off-by: default avatarHaiwei Li <lihaiwei@tencent.com>
Message-Id: <f3031602-db3b-c4fe-b719-d402663b0a2b@gmail.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 4e810adb

arch/x86/kvm/svm/svm.c

+2 −0
Original line number Diff line number Diff line
@@ -2277,6 +2277,7 @@ static int cr_interception(struct vcpu_svm *svm) 
	if (cr >= 16) { /* mov to cr */

		cr -= 16;

		val = kvm_register_read(&svm->vcpu, reg);

		trace_kvm_cr_write(cr, val);

		switch (cr) {

		case 0:

			if (!check_selective_cr0_intercepted(svm, val))
@@ -2322,6 +2323,7 @@ static int cr_interception(struct vcpu_svm *svm) 
			return 1;

		}

		kvm_register_write(&svm->vcpu, reg, val);

		trace_kvm_cr_read(cr, val);

	}

	return kvm_complete_insn_gp(&svm->vcpu, err);

}