[vfio-users] Far Cry Primal

Tue Jun 14 17:38:50 UTC 2016

Well, then that would lend credence to it not being a Warden thing.  Unless
Warden is implemented significantly differently across Blizzard's various
games.

On Tue, Jun 14, 2016 at 12:25 PM, Abdulla Bubshait <darkstego at gmail.com>
wrote:

> Overwatch doesn't have this problem. It is only sc2 and Heroes
>
> On Tue, Jun 14, 2016, 12:25 Jayme Howard <g.prime at gmail.com> wrote:
>
>> Actually, I also haven't seen further ones while I'm playing Overwatch.
>> Just at startup.  I wonder if maybe I've got something misconfigured?
>>
>> On Tue, Jun 14, 2016 at 11:23 AM, Abdulla Bubshait <darkstego at gmail.com>
>> wrote:
>>
>>> Thanks, I guess the "issue" is only from the blizzard games. It could
>>> very well be that this is used as some anti-tamper tool in these blizzard
>>> games, but I find it odd that it only does this in Win10 and that returning
>>> 0 doesn't cause a problem.
>>>
>>> On Tue, Jun 14, 2016 at 12:06 PM Jayme Howard <g.prime at gmail.com> wrote:
>>>
>>>> I've only seen it call them at startup.  After playing for an hour or
>>>> so, I didn't see more of them in my dmesg output.
>>>>
>>>> On Tue, Jun 14, 2016 at 9:38 AM, Abdulla Bubshait <darkstego at gmail.com>
>>>> wrote:
>>>>
>>>>> For what its worth it seems Rise of the Tomb Raider also calls it, so
>>>>> it might be Denuvo.
>>>>>
>>>>> The interesting thing is Rise of the Tomb Raider only calls it once.
>>>>> So there is no performance issue. Heroes and Starcraft continuously make
>>>>> these calls which causes the performance issue.
>>>>>
>>>>> Can anyone confirm if Doom only calls up the MSRS in one spot or does
>>>>> it constantly keep calling the MSRS throughout the game?
>>>>>
>>>>> On Tue, Jun 14, 2016 at 8:55 AM thibaut noah <thibaut.noah at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> They have the warden which is constantly checking your system
>>>>>>
>>>>>> 2016-06-14 14:36 GMT+02:00 Jayme Howard <g.prime at gmail.com>:
>>>>>>
>>>>>>> I don't think Blizzard uses Denuvo.
>>>>>>>
>>>>>>> On Tue, Jun 14, 2016 at 7:29 AM, thibaut noah <
>>>>>>> thibaut.noah at gmail.com> wrote:
>>>>>>>
>>>>>>>> That might also have to do with denuvo protection
>>>>>>>>
>>>>>>>> 2016-06-14 9:49 GMT+02:00 Abdulla Bubshait <darkstego at gmail.com>:
>>>>>>>>
>>>>>>>>> Yes, this is a win10 issue.
>>>>>>>>> Changing the Virtual CPU model does not make a difference. Each
>>>>>>>>> model has its own LBR register address, but one will be called.
>>>>>>>>>
>>>>>>>>> The only thing I have not tried is using an AMD processor. AMD
>>>>>>>>> CPUs support lbrv which is virtualization of the LBR registers, so it is
>>>>>>>>> handled in hardware rather than software.
>>>>>>>>> If anyone has an AMD CPU and a win10 VM willing to confirm if
>>>>>>>>> their setup does indeed work in these games, that would be great.
>>>>>>>>>
>>>>>>>>> On Tue, Jun 14, 2016 at 3:39 AM Ivan Volosyuk <
>>>>>>>>> ivan.volosyuk at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> 2 things:
>>>>>>>>>>  - this msrs are not called from StarCraft on Win8.1.
>>>>>>>>>>  - i wonder if forcing virtual CPU model to something older will
>>>>>>>>>> disable them in Win10.
>>>>>>>>>>
>>>>>>>>>> This msrs issue is what holds me off upgrade to W10.
>>>>>>>>>>
>>>>>>>>>> On Tue, Jun 14, 2016 at 12:39 PM Jayme Howard <g.prime at gmail.com>
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> For what it's worth, I believe I was getting them on Overwatch
>>>>>>>>>>> as well.  It's not happening with EVERY game I have though.
>>>>>>>>>>>
>>>>>>>>>>> On Mon, Jun 13, 2016 at 8:28 PM, Abdulla Bubshait <
>>>>>>>>>>> darkstego at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Mon, Jun 13, 2016 at 6:27 PM, Jayme Howard <
>>>>>>>>>>>> g.prime at gmail.com> wrote:
>>>>>>>>>>>> > That's the output for Doom.
>>>>>>>>>>>> >
>>>>>>>>>>>> > [1639445.044855] kvm [9487]: vcpu2 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.044861] kvm [9487]: vcpu2 ignored rdmsr: 0x1c9
>>>>>>>>>>>> > [1639445.044862] kvm [9487]: vcpu2 ignored rdmsr: 0x680
>>>>>>>>>>>> > [1639445.044863] kvm [9487]: vcpu2 ignored rdmsr: 0x6c0
>>>>>>>>>>>> > [1639445.044890] kvm [9487]: vcpu1 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.044895] kvm [9487]: vcpu1 ignored rdmsr: 0x1c9
>>>>>>>>>>>> > [1639445.044896] kvm [9487]: vcpu1 ignored rdmsr: 0x680
>>>>>>>>>>>> > [1639445.044897] kvm [9487]: vcpu1 ignored rdmsr: 0x6c0
>>>>>>>>>>>> > [1639445.044905] kvm [9487]: vcpu1 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.044907] kvm [9487]: vcpu1 ignored rdmsr: 0x1c9
>>>>>>>>>>>> > [1639445.044908] kvm [9487]: vcpu1 ignored rdmsr: 0x680
>>>>>>>>>>>> > [1639445.044909] kvm [9487]: vcpu1 ignored rdmsr: 0x6c0
>>>>>>>>>>>> > [1639445.046195] kvm [9487]: vcpu2 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.046198] kvm [9487]: vcpu2 ignored rdmsr: 0x1c9
>>>>>>>>>>>> > [1639445.046204] kvm [9487]: vcpu2 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.155114] kvm [9487]: vcpu0 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> > [1639445.155123] kvm [9487]: vcpu0 kvm_set_msr_common:
>>>>>>>>>>>> MSR_IA32_DEBUGCTLMSR
>>>>>>>>>>>> > 0x1, nop
>>>>>>>>>>>> >
>>>>>>>>>>>>
>>>>>>>>>>>> Odd, this is another game that is contantly reading the LBR. I
>>>>>>>>>>>> initially thought this was part of the StarCraft 2 and Heroes of the Storm
>>>>>>>>>>>> code. But now I think this might be part of Windows 10. Something being
>>>>>>>>>>>> called by these games is causing a ton of LBR reads. Maybe DX 12?
>>>>>>>>>>>>
>>>>>>>>>>>> I think if we can find what is causing these reads in the games
>>>>>>>>>>>> we might be able to solve it. Because if this is the case we might be
>>>>>>>>>>>> getting more and more games with performance problems because of these LBR
>>>>>>>>>>>> checks.
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> _______________________________________________
>>>>>>>>>>> vfio-users mailing list
>>>>>>>>>>> vfio-users at redhat.com
>>>>>>>>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> vfio-users mailing list
>>>>>>>>> vfio-users at redhat.com
>>>>>>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>
>>
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