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Re: [Xen-devel] [PATCH] xen/arm: route irqs to cpu0



On 02/21/2014 11:59 AM, Julien Grall wrote:
On 02/21/2014 11:12 AM, George Dunlap wrote:
On Thu, Feb 20, 2014 at 2:52 PM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
On Wed, 19 Feb 2014, George Dunlap wrote:
On 02/19/2014 01:53 PM, Ian Campbell wrote:
On Wed, 2014-02-19 at 13:43 +0000, Julien Grall wrote:
Hi all,

Ping?
No one made a case for a release exception so I put it in my 4.5 pile.

   It would be nice to have this patch for Xen 4.4 as IPI priority
patch won't be pushed before the release.

The patch is a minor change and won't impact normal use. When dom0 is
built, Xen always do it on CPU 0.
Right, so whoever is doing otherwise already has a big pile of patches I
presume?

It's rather late to be making such changes IMHO, but I'll defer to
George.
I can't figure out from the description what's the advantage of having it in
4.4.
People that use the default configuration won't see any differences but
people that manually modify Xen to start a second domain and assign a
device to it would.
To give you a concrete example, it fixes a deadlock reported by
Oleksandr Tyshchenko:

http://marc.info/?l=xen-devel&m=139099606402232
Right -- I think if I had been cc'd when the patch was submitted, I
would have said yes for sure; but at this point I think we just want
to get 4.4.0 out without any more delays if possible.
You were already CCed from the beginning :).

Right. :-) But as Ian said, no one made a case for a release exception, and I got a bit tired of having to ask every time. :-)

 -George

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