> -----Original Message----- > From: Avi Kivity [mailto:avi@xxxxxxxxxx] > Sent: Monday, September 03, 2012 5:23 PM > To: Hao, Xudong > Cc: Roedel, Joerg; kvm@xxxxxxxxxxxxxxx; Zhang, Xiantao > Subject: Re: [PATCH] kvm/fpu: Enable fully eager restore kvm FPU > > On 08/23/2012 11:51 AM, Hao, Xudong wrote: > >> -----Original Message----- > >> From: kvm-owner@xxxxxxxxxxxxxxx [mailto:kvm-owner@xxxxxxxxxxxxxxx] On > >> Behalf Of Avi Kivity > >> Sent: Monday, August 20, 2012 6:43 PM > >> To: Roedel, Joerg > >> Cc: Hao, Xudong; kvm@xxxxxxxxxxxxxxx; Zhang, Xiantao > >> Subject: Re: [PATCH] kvm/fpu: Enable fully eager restore kvm FPU > >> > >> On 08/20/2012 01:14 PM, Roedel, Joerg wrote: > >> > On Mon, Aug 20, 2012 at 01:08:14PM +0300, Avi Kivity wrote: > >> >> On 08/20/2012 12:24 PM, Roedel, Joerg wrote: > >> > > >> >> So it was broken all along? Yikes. > >> > > >> > There is no LWP support in the kernel and thus KVM can't expose it to > >> > guests. So for now nothing should be broken, no? > >> > >> Oh, we mask out xcr0 bits not supported by the host. > >> > >> So it's broken in another way: it isn't exposed. Pity, it's such a nice > >> feature. > >> > > > > Hi, Avi/Joerg > > > > What's the decision for it? I don't understand LWP, so how about this patch? > > It's fine (Joerg can send the LWP change), but there was a truncation > issue that needs fixing, no? > Yes, I think you means to expand KVM_XSTATE_LAZY to 64-bits, I'll send another version patch. Thanks, -Xudong -- 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
