> On Nov 21, 2014, at 02:10, Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx> wrote: > > Hi Nadav, > On Thu, Nov 20, 2014 at 06:34:04PM +0200, Nadav Amit wrote: >> Fenghua, >> >> I got KVM (v3.17) crashing on a machine that supports XRSTORS - It appears to get a #GP when it is trying to load the guest FPU. >> One reason for the #GP is that XCOMP_BV[63] is zeroed on the guest_fpu, but I am not sure it is the only problem. >> Was KVM ever tested with XRSTORS? > > Current kvm and qemu use standard format and xsaves/xrstors should use > compact format, in addition, vmx is still not enabled for xsaves/xrstors > in kvm. Sorry, but I don’t quite understand. Should KVM work on a machine that supports xsaves/xrstors? I am not referring to whether KVM exposes the capability to the guest, but to whether KVM should work at all. Thanks, Nadav -- 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
