From: Julien Grall <julien.grall@linaro.org>
To: Ian Campbell <Ian.Campbell@citrix.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: [Xen 4.4.x] call vgic_en/disable_irqs holding the rank_lock
Date: Wed, 25 Jun 2014 13:37:59 +0100 [thread overview]
Message-ID: <53AAC2A7.8030802@linaro.org> (raw)
In-Reply-To: <1403685427.3875.15.camel@kazak.uk.xensource.com>
On 06/25/2014 09:37 AM, Ian Campbell wrote:
> On Tue, 2014-06-24 at 19:30 +0100, Stefano Stabellini wrote:
>> Modifying ienable and calling vgic_enable_irqs or vgic_disable_irqs need
>> to be atomic. Move the calls to vgic_enable_irqs and vgic_disable_irqs
>> before releasing the rank lock.
>>
>> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
>
> Do I understand correctly that this is a 4.4 only fix which cannot
> simply be a backport of some changeset because of other changes in 4.5?
This is part of patch #1 of Stefano's migration series [1]. As the
interrupt management has been rework between 4.4 and 4.5, I asked
Stefano to send a separate patch based on Xen 4.4.
Regards,
[1] http://lists.xen.org/archives/html/xen-devel/2014-06/msg03019.html
--
Julien Grall
prev parent reply other threads:[~2014-06-25 12:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 18:30 [Xen 4.4.x] call vgic_en/disable_irqs holding the rank_lock Stefano Stabellini
2014-06-25 8:37 ` Ian Campbell
2014-06-25 12:37 ` Julien Grall [this message]
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