Re: [Xen-devel] Re: Fedora 11 PV Xen domU (2.6.29.4-167.fc11.x86_64) crash with invalid opcode in xsave_cntxt_init (xsetbv)

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 09/21/09 13:44, Pasi Kärkkäinen wrote:
> Thanks for the fast reply. I'll ask him to try "noxsave". 
>
> Other than that not much to do about it.. can't really update the F11 GA
> installer kernel.. (and I don't think doing own custom re-spin of F11 is
> good solution for him).
>   

Oh, its a domU install?  You can mask it in the domain config with the
oh-so-intuitive cpuid=[] setting (leaf 1, ecx bit 26).  I think that's:

cpuid=['1:ecx=xxxxx0xxxxxxxxxxxxxxxxxxxxxxxxxx,
          eax=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' ]

(I'm assuming it works for PV as well as HVM domains.)

    J

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