RE: [PATCH] KVM: x86: Add three MSRs to the list of ignored MSRs

Kay, Allen M
2016-04-19T16:11:17Z

> -----Original Message-----
> From: Shuai Ruan [mailto:shuai.ruan@linux.intel.com]
> Sent: Tuesday, April 19, 2016 2:20 AM
> To: Radim Krčmář <rkrcmar@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>; kvm@vger.kernel.org; Kay, Allen
> M <allen.m.kay@intel.com>
> Subject: Re: [PATCH] KVM: x86: Add three MSRs to the list of ignored MSRs
>
> On Fri, Apr 15, 2016 at 04:12:39PM +0200, Radim Krčmář wrote:
> > 2016-04-15 12:48+0200, Paolo Bonzini:
> > > On 14/04/2016 18:29, Radim Krčmář wrote:
> Hi Paolo/Radim:
>
> Thanks for your review and suggestion.
> After confirm with igd driver team, they will fix MSR problem in the driver.
>

Just to provide more clarification on this, the driver team is looking into putting try-except around MSR register accesses. However, the change will only be in future driver release (15.45 version). In the meantime, please use KVM ignore_msrs option when doing IGD passthrough as indicated by Alex.

Allen