From 72214b9601f2b6c8343ea57b0e405f9da7a92d29 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Fri, 3 Dec 2010 11:45:55 +0100 Subject: [PATCH] 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 Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 4 ++++ 1 file changed, 4 insertions(+) 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)