diff mbox

[3/9] KVM: SVM: Add checks for DRx read and write intercepts

Message ID 1290622715-8382-4-git-send-email-joerg.roedel@amd.com (mailing list archive)
State New, archived
Headers show

Commit Message

Joerg Roedel Nov. 24, 2010, 6:18 p.m. UTC 
None
diff mbox

Patch

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 29f0491..16ff569 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3669,6 +3669,9 @@  static int svm_insn_intercepted(struct kvm_vcpu *vcpu,
 	case 0x20: /* CR read  */
 		vmcb->control.exit_code = SVM_EXIT_READ_CR0 + c->modrm_reg;
 		break;
+	case 0x21:
+		vmcb->control.exit_code = SVM_EXIT_READ_DR0 + c->modrm_reg;
+		break;
 	case 0x22: /* CR write */
 		vmcb->control.exit_code = SVM_EXIT_WRITE_CR0 + c->modrm_reg;
 		if (c->modrm_reg == 0 &&
@@ -3683,6 +3686,9 @@  static int svm_insn_intercepted(struct kvm_vcpu *vcpu,
 				vmcb->control.exit_code = SVM_EXIT_CR0_SEL_WRITE;
 		}
 		break;
+	case 0x23:
+		vmcb->control.exit_code = SVM_EXIT_WRITE_DR0 + c->modrm_reg;
+		break;
 	}
 
 	vmcb->control.next_rip = ctxt->eip;