Re: [Xen-devel] [PATCH V15 6/9] xen/arm: Implement domain_get_maximum_gpfn

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Mon, 2015-04-20 at 17:06 +0200, Tamas K Lengyel wrote:
> From: Julien Grall <julien.grall@xxxxxxxxxx>
> 
> The function domain_get_maximum_gpfn is returning the maximum gpfn ever
> mapped in the guest. We can use d->arch.p2m.max_mapped_gfn for this purpose.
> 
> We use this in xenaccess as to avoid the user attempting to set page
> permissions on pages which don't exist for the domain, as a non-arch specific
> sanity check.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>



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