Re: [Xen-devel] 32-on-64: pvfb issue

[Gerd Hoffmann <kraxel@xxxxxxx>]

Markus Armbruster wrote:
> I really don't understand why we need this level of generality and
> complexity, in particular when a simple hypercall to query a domain's
> width would do.  Or a simple, stupid version number in the shared
> page.  We'll hardly end up with an unmanageable number of versions.

A simple hypercall will *not* do for paravirtualized drivers in fully
virtualized domains.

cheers,
  Gerd

-- 
Gerd Hoffmann <kraxel@xxxxxxx>

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