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Re: [Xen-devel] [bug] 'VT-d 1G super page' feature is blocked


At 11:11 +0100 on 15 Aug (1313406719), Tim Deegan wrote:
> So this breaks on dom0 boot, but that's a symptom of a deeper illness. 
> By chance, the old code (before 23247) only actually enabled EPT-sharing
> when the first HVM domain tried to use it.  23247 pulled that enabling
> up to boot time, and exposed the bug that PV guests aren't properly
> supported.  AFAICS the code just tries to share the P2M table without
> making sure there is one there to share. :(

Please try the attached patch, as well as the one earlier in the



Tim Deegan <tim@xxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

Attachment: iommu-share-check
Description: Text document

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