From: Keir Fraser <keir.xen@gmail.com>
To: Julien Grall <julien.grall@citrix.com>,
Julien Grall <julien.grall@linaro.org>
Cc: ian.campbell@citrix.com, patches@linaro.org,
stefano.stabellini@eu.citrix.com, tim@xen.org,
Jan Beulich <jbeulich@suse.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH V3] xen: Check if the range is valid in init_domheap_pages
Date: Wed, 20 Nov 2013 13:12:00 -0800 [thread overview]
Message-ID: <CEB265A0.66A01%keir.xen@gmail.com> (raw)
In-Reply-To: <528CDEBD.8060508@citrix.com>
On 20/11/2013 08:09, "Julien Grall" <julien.grall@citrix.com> wrote:
> On 11/13/2013 01:37 PM, Julien Grall wrote:
>> On ARM, when an initrd is given to xen by U-boot, it will reserve the memory
>> in
>> the device tree.
>> In this case, when xen decides to free unused memory, dt_unreserved_regions
>> will call init_domheap_pages with the start and the end of range equals. But
>> the latter assumes that (start > end), if not Xen will hang because the
>> number of pages is equals to (unsigned)-1.
>>
>> Signed-off-by: Julien Grall <julien.grall@linaro.org>
>> CC: Keir Fraser <keir@xen.org>
>> CC: Jan Beulich <jbeulich@suse.com>
>
> Ping ? Without this commit, the user is unable to pass initrd to dom0 on
> ARM.
It was fine with me.
Acked-by: Keir Fraser <keir@xen.org>
prev parent reply other threads:[~2013-11-20 21:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-13 13:37 [PATCH V3] xen: Check if the range is valid in init_domheap_pages Julien Grall
2013-11-13 14:58 ` Keir Fraser
2013-11-20 16:09 ` Julien Grall
2013-11-20 21:12 ` Keir Fraser [this message]
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