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authorJoerg Roedel <joerg.roedel@amd.com>2010-12-03 11:45:55 +0100
committerAvi Kivity <avi@redhat.com>2011-01-12 11:30:31 +0200
commit72214b9601f2b6c8343ea57b0e405f9da7a92d29 (patch)
tree594cdb8c8e1186d11babd9cfc75c17034f7e771f /arch/x86
parentdcca1a6506123cd47af334b7ee2a4b0288196389 (diff)
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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: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kvm/svm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 0f55b8a69540..e9224ca090a1 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -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)