> -Original Message-
[snip]
> >
> > No, I meant the guest receive-side copy didn't scale, not grant table v2
> itself. Ok the table is bigger with v2, but to do guest receive-side copy
> required a huge table in dom0 if it was going to scale to 100s of VMs and the
> perf. benefits were neve
...@lists.xen.org; linux-kernel@vger.kernel.org;
jbeul...@suse.com; steve.cap...@arm.com
Subject: Re: [Xen-devel] [PATCH] xen: grant-table: Check truncation when
giving access to a frame
On 13/06/16 13:41, Julien Grall wrote:
Hello Paul,
On 13/06/16 13:12, Paul Durrant wrote:
-Original Message
.org; linux-kernel@vger.kernel.org;
> jbeul...@suse.com; steve.cap...@arm.com
> Subject: Re: [Xen-devel] [PATCH] xen: grant-table: Check truncation when
> giving access to a frame
>
>
>
> On 13/06/16 13:41, Julien Grall wrote:
> > Hello Paul,
> >
> > On 13/06/
;
sstabell...@kernel.org; konrad.w...@oracle.com
Cc: steve.cap...@arm.com; Andrew Cooper; linux-kernel@vger.kernel.org;
xen-de...@lists.xen.org; Julien Grall; jbeul...@suse.com
Subject: [Xen-devel] [PATCH] xen: grant-table: Check truncation when
giving
access to a frame
The version 1 of the grant-table
Cc: steve.cap...@arm.com; Andrew Cooper; linux-kernel@vger.kernel.org;
xen-de...@lists.xen.org; Julien Grall; jbeul...@suse.com
Subject: [Xen-devel] [PATCH] xen: grant-table: Check truncation when giving
access to a frame
The version 1 of the grant-table protocol only supports frame encoded on
32
steve.cap...@arm.com; linux-kernel@vger.kernel.org;
> jbeul...@suse.com; xen-de...@lists.xen.org
> Subject: Re: [Xen-devel] [PATCH] xen: grant-table: Check truncation when
> giving access to a frame
>
> Hi David,
>
> On 13/06/16 11:57, David Vrabel wrote:
> > On 13/06/
rm.com; Andrew Cooper; linux-kernel@vger.kernel.org;
> xen-de...@lists.xen.org; Julien Grall; jbeul...@suse.com
> Subject: [Xen-devel] [PATCH] xen: grant-table: Check truncation when giving
> access to a frame
>
> The version 1 of the grant-table protocol only supports frame encoded
Hi David,
On 13/06/16 11:57, David Vrabel wrote:
On 13/06/16 11:50, Julien Grall wrote:
The version 1 of the grant-table protocol only supports frame encoded on
32-bit.
When the platform is supporting 48-bit physical address, the frame will
be encoded on 36-bit which will lead a truncation and
On 13/06/16 11:50, Julien Grall wrote:
> The version 1 of the grant-table protocol only supports frame encoded on
> 32-bit.
>
> When the platform is supporting 48-bit physical address, the frame will
> be encoded on 36-bit which will lead a truncation and give access to
> the wrong frame.
>
> On
The version 1 of the grant-table protocol only supports frame encoded on
32-bit.
When the platform is supporting 48-bit physical address, the frame will
be encoded on 36-bit which will lead a truncation and give access to
the wrong frame.
On ARM Xen will always allow the guest to use all the phys
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