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Re: [Xen-devel] [Xen 4.4.x] call vgic_en/disable_irqs holding the rank_lock

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@xxxxxxxxxxxxx>
> 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.


[1] http://lists.xen.org/archives/html/xen-devel/2014-06/msg03019.html

Julien Grall

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