From: Julien Grall <julien.grall@linaro.org>
To: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>,
ian.campbell@citrix.com, patches@linaro.org, tim@xen.org,
stefano.stabellini@citrix.com, xen-devel@lists.xenproject.org
Subject: Re: [PATCH v5] xen/arm: Allow balooning working with 1:1 memory mapping
Date: Tue, 17 Dec 2013 14:11:41 +0000 [thread overview]
Message-ID: <52B05B9D.3030409@linaro.org> (raw)
In-Reply-To: <52B02022020000780010E04E@nat28.tlf.novell.com>
On 12/17/2013 08:57 AM, Jan Beulich wrote:
>>>> On 16.12.13 at 18:00, Julien Grall <julien.grall@linaro.org> wrote:
>> With the lack of iommu, dom0 must have a 1:1 memory mapping for all
>> these guest physical address. When the ballon decides to give back a
>> page to the kernel, this page must have the same address as previously.
>> Otherwise, we will loose the 1:1 mapping and will break DMA-capable
>> devices.
>>
>> Signed-off-by: Julien Grall <julien.grall@linaro.org>
>> Cc: Keir Fraser <keir@xen.org>
>
> Reviewed-by: Jan Beulich <jbeulich@suse.com>
> if you do one more change (and a little bit of further cleanup -
> sorry I didn't notice this before):
Thanks, I will do all the changes.
--
Julien Grall
prev parent reply other threads:[~2013-12-17 14:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-16 17:00 [PATCH v5] xen/arm: Allow balooning working with 1:1 memory mapping Julien Grall
2013-12-17 8:57 ` Jan Beulich
2013-12-17 14:11 ` Julien Grall [this message]
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