On 28/01/2016 09:31, Andrey Wagin wrote: > I tried to print drX registers after a break-point. Looks like they > are set correctly. Can you try this KVM patch? diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index c13a64b7d789..32bae1c70a50 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1612,6 +1612,7 @@ static void svm_sync_dirty_debug_regs(struct kvm_vcpu *vcpu) vcpu->arch.dr7 = svm->vmcb->save.dr7; vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_WONT_EXIT; + vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD; set_dr_intercepts(svm); } diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index e2951b6edbbc..505a4663b9f4 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -5659,6 +5659,7 @@ static void vmx_sync_dirty_debug_regs(struct kvm_vcpu *vcpu) vcpu->arch.dr7 = vmcs_readl(GUEST_DR7); vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_WONT_EXIT; + vcpu->arch.switch_db_regs |= KVM_DEBUGREG_RELOAD; cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL); cpu_based_vm_exec_control |= CPU_BASED_MOV_DR_EXITING; Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
