Re: preparations for 4.13.2 and 4.12.4

[Julien Grall <julien@xxxxxxx>]

Hi Bertrand,

On 11/09/2020 14:56, Bertrand Marquis wrote:
> > On 11 Sep 2020, at 14:51, Julien Grall <julien@xxxxxxx> wrote:
> >
> > Hi Bertrand,
> >
> > On 11/09/2020 14:32, Bertrand Marquis wrote:
> > > > On 11 Sep 2020, at 14:11, Jan Beulich <jbeulich@xxxxxxxx> wrote:
> > > >
> > > > All,
> > > >
> > > > the releases are about due, but will of course want to wait for the
> > > > XSA fixes going public on the 22nd. Please point out backports
> > > > you find missing from the respective staging branches, but which
> > > > you consider relevant. (Ian, Julien, Stefano: I notice there once
> > > > again haven't been any tools or Arm side backports at all so far
> > > > since the most recent stable releases from these branches. But
> > > > maybe there simply aren't any.)
> > > >
> > > > One that I have queued already, but which first need to at least
> > > > pass the push gate to master, are
> > > >
> > > > 8efa46516c5f hvmloader: indicate ACPI tables with "ACPI data" type in e820
> > > > e5a1b6f0d207 x86/mm: do not mark IO regions as Xen heap
> > > > b4e41b1750d5 b4e41b1750d5 [4.14 only]
> > > >
> > > > On the Arm side I'd also like to ask for
> > > >
> > > > 5d45ecabe3c0 xen/arm64: force gcc 10+ to always inline generic atomics helpers
> > > +1
> > > Could those fixes also be considered:
> > > 3b418b3326 arm: Add Neoverse N1 processor identification
> > > 858c0be8c2 xen/arm: Enable CPU Erratum 1165522 for Neoverse
> > > 1814a626fb xen/arm: Update silicon-errata.txt with the Neovers AT erratum
> > The processor is quite new so may I ask why we would want to backport on older 
> > Xen?
> 4.14 at least would be good as it is the current stable and N1SDP is support in 
> Yocto which is based on 4.14.
While I understand external project are often based on stable release, I 
don't want to always backport errata. Some of them are quite involved 
and this is a risk for others.
In this case, the erratum has already been implemented for other 
processors. So the risk is minimal.
> But as the official one will be on next Yocto release this would be ok to 
> consider only 4.14 here.
4.14 only would be my preference.

Cheers,

--
Julien Grall