diff options
-rw-r--r-- | arch/x86/kvm/svm.c | 5 | ||||
-rw-r--r-- | arch/x86/kvm/vmx.c | 5 | ||||
-rw-r--r-- | arch/x86/kvm/x86.c | 14 |
3 files changed, 23 insertions, 1 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 815f50e..b3a7a31 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -958,6 +958,11 @@ static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) } else vcpu->guest_debug = 0; + if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) + svm->vmcb->save.dr7 = dbg->arch.debugreg[7]; + else + svm->vmcb->save.dr7 = vcpu->arch.dr7; + if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) svm->vmcb->save.rflags |= X86_EFLAGS_TF | X86_EFLAGS_RF; else if (old_debug & KVM_GUESTDBG_SINGLESTEP) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 0989776..cee81c9 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1017,6 +1017,11 @@ static int set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) if (!(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)) vcpu->guest_debug = 0; + if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) + vmcs_writel(GUEST_DR7, dbg->arch.debugreg[7]); + else + vmcs_writel(GUEST_DR7, vcpu->arch.dr7); + flags = vmcs_readl(GUEST_RFLAGS); if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) flags |= X86_EFLAGS_TF | X86_EFLAGS_RF; diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 300bc4d..2477e87 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3861,10 +3861,22 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) { - int r; + int i, r; vcpu_load(vcpu); + if ((dbg->control & (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP)) == + (KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP)) { + for (i = 0; i < KVM_NR_DB_REGS; ++i) + vcpu->arch.eff_db[i] = dbg->arch.debugreg[i]; + vcpu->arch.switch_db_regs = + (dbg->arch.debugreg[7] & DR7_BP_EN_MASK); + } else { + for (i = 0; i < KVM_NR_DB_REGS; i++) + vcpu->arch.eff_db[i] = vcpu->arch.db[i]; + vcpu->arch.switch_db_regs = (vcpu->arch.dr7 & DR7_BP_EN_MASK); + } + r = kvm_x86_ops->set_guest_debug(vcpu, dbg); if (dbg->control & KVM_GUESTDBG_INJECT_DB) |