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| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-12-03 11:45:55 +0100 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-01-12 11:30:31 +0200 |
| commit | 72214b9601f2b6c8343ea57b0e405f9da7a92d29 (patch) | |
| tree | 594cdb8c8e1186d11babd9cfc75c17034f7e771f /arch/x86/kvm/svm.c | |
| parent | dcca1a6506123cd47af334b7ee2a4b0288196389 (diff) | |
| download | lwn-72214b9601f2b6c8343ea57b0e405f9da7a92d29.tar.gz lwn-72214b9601f2b6c8343ea57b0e405f9da7a92d29.zip | |
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/kvm/svm.c')
| -rw-r--r-- | arch/x86/kvm/svm.c | 4 |
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) |