Re: [Xen-devel] [PATCH v3] Livepatch for ARM 64 and 32.

[Julien Grall <julien.grall@xxxxxxx>]

On 16/09/2016 16:35, Konrad Rzeszutek Wilk wrote:
> On Fri, Sep 16, 2016 at 03:45:12PM +0200, Julien Grall wrote:
> > On 16/09/2016 15:41, Konrad Rzeszutek Wilk wrote:
> > > On Fri, Sep 16, 2016 at 03:35:21PM +0200, Julien Grall wrote:
> > > > Hi Konrad,
> > > >
> > > > On 11/09/2016 22:35, Konrad Rzeszutek Wilk wrote:
> > > > > v2: [http://www.gossamer-threads.com/lists/xen/devel/444461?page=last]
> > > > >  - Addressed the two outstanding concerns: CPU bit feature to test alternative
> > > > >    test-case, and errata #843419 on some Cortex-A53
> > > > I am a bit confused. I haven't spotted any specific code for this. How did
> > > > you handle it?
> > > livepatch: x86, ARM, alternative: Expose FEATURE_LIVEPATCH
> > AFAICT, this only handles this first part (CPU bit feature) not the errata
> > #843419. Did I miss anything?
> My recollection is (from
> Date: Wed, 31 Aug 2016 15:49:55 +0100
> From: Julien Grall <julien.grall@xxxxxxx>
> To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, 
> xen-devel@xxxxxxxxxxxxxxxxxxxx, konrad@xxxxxxxxxx, ross.lagerwall@xxxxxxxxxx,
>         sstabellini@xxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Subject: Re: [PATCH v2] Livepatch for ARM 64 and 32.
> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 
> Thunderbird/45.2.0
> "
>
> ">  -  #13 "livepatch: Initial ARM64 support."
> >     Need to look in erratum #843419 on some Cortex-A53 and figuring
> >     out how to avoid payloads having R_AARCH64_ADR_PREL_PG_HI21 relocations.
> I will not considered this has a blocker for this series. Having livepatching
> on all the other boards for Xen 4.8 would still be awesome :).
> "
>
> So I moved it off to 4.9 list.
Oh, I understood "Addressed the two outstanding concerns" as "It was 
fixed in the code". Maybe I was expecting too much to shrink down my 
todo list ^^.

--
Julien Grall

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