ARM: Request backport for Xen 4.6 and Xen 4.5

ARM: Request backport for Xen 4.6 and Xen 4.5

[Julien Grall]

Hi,

While testing XSA-201, I noticed that Xen 4.5 and 4.5 were not able to 
boot on the Foundation Model [1].

The Foundation Model is a free model provided by ARM for ARMv8 which is 
supported by Xen since the beginning.

I am able to Xen boot after applying the patch:

eb6fe7a "arm64: fix incorrect memory region size in TCR_EL2"

So would it be possible to backport this patch in Xen 4.6 and Xen 4.5?

Cheers,

[1] https://www.arm.com/products/tools/models/foundation-model.php

-- 
Julien Grall

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Re: ARM: Request backport for Xen 4.6 and Xen 4.5

[Stefano Stabellini]

Done

On Thu, 1 Dec 2016, Julien Grall wrote:
> Hi,
> 
> While testing XSA-201, I noticed that Xen 4.5 and 4.5 were not able to boot on
> the Foundation Model [1].
> 
> The Foundation Model is a free model provided by ARM for ARMv8 which is
> supported by Xen since the beginning.
> 
> I am able to Xen boot after applying the patch:
> 
> eb6fe7a "arm64: fix incorrect memory region size in TCR_EL2"
> 
> So would it be possible to backport this patch in Xen 4.6 and Xen 4.5?
> 
> Cheers,
> 
> [1] https://www.arm.com/products/tools/models/foundation-model.php
> 
> -- 
> Julien Grall
> 

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Re: ARM: Request backport for Xen 4.6 and Xen 4.5

[Jan Beulich]

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>>> On 01.12.16 at 18:58, <julien.grall@arm.com> wrote:
> While testing XSA-201, I noticed that Xen 4.5 and 4.5 were not able to 
> boot on the Foundation Model [1].
> 
> The Foundation Model is a free model provided by ARM for ARMv8 which is 
> supported by Xen since the beginning.
> 
> I am able to Xen boot after applying the patch:
> 
> eb6fe7a "arm64: fix incorrect memory region size in TCR_EL2"
> 
> So would it be possible to backport this patch in Xen 4.6 and Xen 4.5?

I'll let Stefano take care of the 4.6 part (if he deems it reasonable),
but I'd like to point out that 4.5 is closed for non-security fixes (see
lists.xenproject.org/archives/html/xen-announce/2016-09/msg00004.html).

Jan

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From: "Jan Beulich" <JBeulich@suse.com>
To: <xen-announce@lists.xenproject.org>
Cc: "xen-devel" <xen-devel@lists.xenproject.org>
Subject: Xen 4.5.5 released
Date: Wed, 21 Sep 2016 03:14:31 -0600

All,

I am pleased to announce the release of Xen 4.5.5. This is
available immediately from its git repository
https://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.5 
(tag RELEASE-4.5.5) or from the XenProject download page
https://www.xenproject.org/downloads/xen-archives/xen-45-series/xen-455.html 
(where a list of changes can also be found).

Note that this is the last XenProject coordinated release of the 4.5
stable series. The tree will be switched to security only maintenance
mode after this release.

We recommend all users of the 4.5 stable series to update to this
last point release.

Note regarding 4.5.4: An issue was found late in the release process,
after the various trees were already tagged (in fact, one of those
tags was wrong). We therefore decided to skip version 4.5.4.

Regards, Jan


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Re: ARM: Request backport for Xen 4.6 and Xen 4.5

[Andrew Cooper]

On 02/12/16 07:19, Jan Beulich wrote:
>>>> On 01.12.16 at 18:58, <julien.grall@arm.com> wrote:
>> While testing XSA-201, I noticed that Xen 4.5 and 4.5 were not able to 
>> boot on the Foundation Model [1].
>>
>> The Foundation Model is a free model provided by ARM for ARMv8 which is 
>> supported by Xen since the beginning.
>>
>> I am able to Xen boot after applying the patch:
>>
>> eb6fe7a "arm64: fix incorrect memory region size in TCR_EL2"
>>
>> So would it be possible to backport this patch in Xen 4.6 and Xen 4.5?
> I'll let Stefano take care of the 4.6 part (if he deems it reasonable),
> but I'd like to point out that 4.5 is closed for non-security fixes (see
> lists.xenproject.org/archives/html/xen-announce/2016-09/msg00004.html).

In this case, I'd argue for accepting the change as it is a blocker to
developing the security fix.

~Andrew

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