Re: [Xen-devel] [PATCH] x86/pvh: Fix pvh dom0 boot after dab11417d

[Roger Pau Monnà <roger.pau@xxxxxxxxxx>]

On 14/07/14 20:02, Andrew Cooper wrote:
> Changeset dab11417d
> "x86/HVM: consolidate and sanitize CR4 guest reserved bit determination"
> 
> did not take into account the fact that dom0 does not have a cpuid policy.  As
> a result, PVH dom0s would be given unexpected #GP faults on boot.
> 
> In addition to the restore case (where the toolstack has not had time to load
> a cpuid policy), unconditionally exempt the hardware domain from needing a
> policy.
> 
> Reported-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> CC: Jan Beulich <JBeulich@xxxxxxxx>

Tested-by: Roger Pau Monnà <roger.pau@xxxxxxxxxx>


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