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

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

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel 2010-12-03 11:45:55 +01:00 committed by Avi Kivity
parent dcca1a6506
commit 72214b9601
1 changed files with 4 additions and 0 deletions
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4
arch/x86/kvm/svm.c
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@ -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)