From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: [PATCH] x86-64: refine the XSA-9 fix
Date: Fri, 17 Aug 2012 17:11:36 +0200
Message-ID: <20120817151136.GA25138@aepfle.de>
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	<CC04F47B.431CE%keir@xen.org>
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To: Keir Fraser <keir@xen.org>
Cc: Jan Beulich <JBeulich@suse.com>, xen-devel <xen-devel@lists.xen.org>
List-Id: xen-devel@lists.xenproject.org

On Mon, Jun 18, Keir Fraser wrote:

> On 13/06/2012 11:04, "Jan Beulich" <JBeulich@suse.com> wrote:
> 
> > Our product management wasn't happy with the "solution" for XSA-9, and
> > demanded that customer systems must continue to boot. Rather than
> > having our and perhaps other distros carry non-trivial patches, allow
> > for more fine grained control (panic on boot, deny guest creation, or
> > merely warn) by means of a single line change.
> 
> All this seems to allow is to boot but not create domU-s. Which seems a bit
> pointless.

Refusing to boot into dom0 with no good reason is a good way to lose
remote control of a system without serial console. Not funny.

Fortunately I booted and tested with sles11 Xen first before ruining the
box with plain xen-unstable.

So, please apply this patch and remove the panic() from ./xen/arch/x86/cpu/amd.c

Olaf