Commit 72214b96 authored by Joerg Roedel's avatar Joerg Roedel Committed by Avi Kivity
Browse files

KVM: SVM: Add clean-bit for DR6 and DR7 



This patch implements the clean-bit for the dr6 and dr7
debug registers in the vmcb.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent dcca1a65

arch/x86/kvm/svm.c

+4 −0
Original line number Diff line number Diff line
@@ -193,6 +193,7 @@ enum { 
	VMCB_INTR,	 /* int_ctl, int_vector */

	VMCB_NPT,        /* npt_en, nCR3, gPAT */

	VMCB_CR,	 /* CR0, CR3, CR4, EFER */

	VMCB_DR,         /* DR6, DR7 */

	VMCB_DIRTY_MAX,

};
@@ -1484,6 +1485,8 @@ static void svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) 
	else

		svm->vmcb->save.dr7 = vcpu->arch.dr7;



	mark_dirty(svm->vmcb, VMCB_DR);



	update_db_intercept(vcpu);

}
@@ -1506,6 +1509,7 @@ static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value) 
	struct vcpu_svm *svm = to_svm(vcpu);



	svm->vmcb->save.dr7 = value;

	mark_dirty(svm->vmcb, VMCB_DR);

}



static int pf_interception(struct vcpu_svm *svm)