Re: [Xen-devel] [PATCH v2 16/25] x86/pv: Use per-domain policy information in pv_cpuid()

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

>      case 0x80000001:
> -        c &= pv_featureset[FEATURESET_e1c];
> -        d &= pv_featureset[FEATURESET_e1d];
> +        c = p->extd.e1c;

This appears to crash guests Intel, at least for dom0.

p->extd.e1c is 0x3 and bit 1 is reserved on Intel.

I haven't traced it yet to exact place that causes dom0 to crash but
clearing this bit make dom0 boot.


-boris


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