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Re: [Xen-devel] [PATCH for-4.5 v6 12/17] xen/arm: Implement domain_get_maximum_gpfn

To: Tamas K Lengyel <tklengyel@xxxxxxxxxxxxx>
From: Ian Campbell <ian.campbell@xxxxxxxxxx>
Date: Mon, 15 Sep 2014 23:39:00 +0100
Cc: tim@xxxxxxx, julien.grall@xxxxxxxxxx, ian.jackson@xxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxx, stefano.stabellini@xxxxxxxxxx, andres@xxxxxxxxxxxxxxxx, jbeulich@xxxxxxxx, dgdegra@xxxxxxxxxxxxx
Delivery-date: Mon, 15 Sep 2014 22:39:11 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On Mon, 2014-09-15 at 16:02 +0200, Tamas K Lengyel wrote:
> 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 had a grief discussion about why/how this was useful for xenaccess
and whether it was needed or just an optimisation etc. Could you recap
that here please?

Ian.

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Follow-Ups:
- Re: [Xen-devel] [PATCH for-4.5 v6 12/17] xen/arm: Implement domain_get_maximum_gpfn
  - From: Tamas K Lengyel

References:
- [Xen-devel] [PATCH for-4.5 v6 00/17] Mem_event and mem_access for ARM
  - From: Tamas K Lengyel

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