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.pr...@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 <darkst...@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.n...@gmail.com> >> wrote: >> >>> They have the warden which is constantly checking your system >>> >>> 2016-06-14 14:36 GMT+02:00 Jayme Howard <g.pr...@gmail.com>: >>> >>>> I don't think Blizzard uses Denuvo. >>>> >>>> On Tue, Jun 14, 2016 at 7:29 AM, thibaut noah <thibaut.n...@gmail.com> >>>> wrote: >>>> >>>>> That might also have to do with denuvo protection >>>>> >>>>> 2016-06-14 9:49 GMT+02:00 Abdulla Bubshait <darkst...@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.volos...@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.pr...@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 < >>>>>>>> darkst...@gmail.com> wrote: >>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Mon, Jun 13, 2016 at 6:27 PM, Jayme Howard <g.pr...@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@redhat.com >>>>>>>> https://www.redhat.com/mailman/listinfo/vfio-users >>>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> vfio-users mailing list >>>>>> vfio-users@redhat.com >>>>>> https://www.redhat.com/mailman/listinfo/vfio-users >>>>>> >>>>>> >>>>> >>>> >>> >
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