Re: [PATCH] virtio: Define and use per-architecture "pfn shift" constants

[Anthony Liguori <anthony@xxxxxxxxxxxxx>]

Hollis Blanchard wrote:
> # HG changeset patch
> # User Hollis Blanchard <hollisb@xxxxxxxxxx>
> # Date 1225946980 21600
> # Node ID f58566dfe20e841604e1377ff41e9e0501c1cf18
> # Parent  f776b102380286dd173a3b89f7dc976140812517
> virtio: Define and use per-architecture "pfn shift" constants
>
> Both sides of the virtio interface must agree about how big a pfn really is.
> This is particularly an issue on architectures where the page size is
> configurable (e.g. PowerPC, IA64) -- the interface must be independent of
> PAGE_SHIFT.
>
> This patch should have no functional effect on x86 or ia64, but an ack from the IA64 guys
> would be good because I'm not clear on their page size requirements.
>
> Signed-off-by: Hollis Blanchard <hollisb@xxxxxxxxxx>
>
>   

This is missing a fix for virtio-balloon.

Regards,

Anthony Liguori


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