Re: [Xen-devel] [PATCH] Allow programatic iomem permissions

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 13/7/07 16:41, "Kieran Mansley" <kmansley@xxxxxxxxxxxxxx> wrote:

> OK, patch attached.  It compiles and seems to work, but hasn't been
> heavily tested yet.  I'm sure it could be more efficient, but wanted to
> check I was heading in the right direction.

No, it doesn't compile. This isn't baked enough to really comment on. Looks
like kind of the right thing though. Bear in mind that after a certain point
(in particular after the info is lost of from the grantee's maptrack handle)
then the unmap operation *must* complete in full. Otherwise the innocent
granter can be left with leaked grant entries for all time!

 -- Keir


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