Re: [Xen-devel] [PATCH v7 9/9] ioreq-server: make buffered ioreq handling optional

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 09.05.14 at 10:40, <paul.durrant@xxxxxxxxxx> wrote:
> Some emulators will only register regions that require non-buffered
> access. (In practice the only region that a guest uses buffered access
> for today is the VGA aperture from 0xa0000-0xbffff). This patch therefore
> makes allocation of the buffered ioreq page and event channel optional for
> secondary ioreq servers.
> 
> If a guest attempts buffered access to an ioreq server that does not
> support it, the access will be handled via the normal synchronous path.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
(hypervisor side, and provided the many remaining coding style
issues get cleaned up)



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