1 files changed, 18 insertions, 3 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c7168a5cff1b..2de1bc09a8d4 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1671,6 +1671,19 @@ static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *sd)
         mark_dirty(svm->vmcb, VMCB_ASID);
 }
 
+static u64 svm_get_dr6(struct kvm_vcpu *vcpu)
+{
+        return to_svm(vcpu)->vmcb->save.dr6;
+}
+
+static void svm_set_dr6(struct kvm_vcpu *vcpu, unsigned long value)
+{
+        struct vcpu_svm *svm = to_svm(vcpu);
+
+        svm->vmcb->save.dr6 = value;
+        mark_dirty(svm->vmcb, VMCB_DR);
+}
+
 static void svm_set_dr7(struct kvm_vcpu *vcpu, unsigned long value)
 {
         struct vcpu_svm *svm = to_svm(vcpu);
@@ -2989,10 +3002,8 @@ static int cr8_write_interception(struct vcpu_svm *svm)
         u8 cr8_prev = kvm_get_cr8(&svm->vcpu);
         /* instruction emulation calls kvm_set_cr8() */
         r = cr_interception(svm);
-        if (irqchip_in_kernel(svm->vcpu.kvm)) {
-                clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+        if (irqchip_in_kernel(svm->vcpu.kvm))
                 return r;
-        }
         if (cr8_prev <= kvm_get_cr8(&svm->vcpu))
                 return r;
         kvm_run->exit_reason = KVM_EXIT_SET_TPR;
@@ -3554,6 +3565,8 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
         if (is_guest_mode(vcpu) && (vcpu->arch.hflags & HF_VINTR_MASK))
                 return;
 
+        clr_cr_intercept(svm, INTERCEPT_CR8_WRITE);
+
         if (irr == -1)
                 return;
 
@@ -4286,6 +4299,8 @@ static struct kvm_x86_ops svm_x86_ops = {
         .set_idt = svm_set_idt,
         .get_gdt = svm_get_gdt,
         .set_gdt = svm_set_gdt,
+        .get_dr6 = svm_get_dr6,
+        .set_dr6 = svm_set_dr6,
         .set_dr7 = svm_set_dr7,
         .cache_reg = svm_cache_reg,
         .get_rflags = svm_get_rflags,