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Re: [Xen-devel] [PATCH] xen/arm: Handle translated addresses for hardware domains in GICv2

On 24/02/15 16:01, Ian Campbell wrote:
> On Mon, 2015-02-23 at 16:30 +0000, Julien Grall wrote:
>> I'm wondering if it's worth to backport this patch to Xen 4.5?
> Maybe, I doubt 4.5 is being used on platforms which suffer from this
> issue, but it's pretty un-intrusive I suppose.

There is no reason to consider only the set of platforms we support
upstream. We should take into account people who want to ship a product
based on Xen 4.5. This release aims to work anywhere by only adding few
lines of code in the platform code.

Furthermore, the current code rely on how the device has been written.
For instance the calxeda device tree is using ranges and, therefore, the
regs contains offset.
Fortunately, the offset and the translated address is the same.

> I certainly wouldn't want to backport a fix to gic v2 only.

As we didn't backport other patches related to GICv3, it would not make
much sense to backport a similar fix for GICv3..


Julien Grall

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