[vfio-users] Far Cry Primal

[Jayme Howard]

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.
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> vfio-users mailing list
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>>>>>
>>>>>
>>>>
>>>
>>
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