Re: [Xen-devel] [PATCH] x86-64: refine the XSA-9 fix

[Olaf Hering <olaf@xxxxxxxxx>]

On Mon, Jun 18, Keir Fraser wrote:

> On 13/06/2012 11:04, "Jan Beulich" <JBeulich@xxxxxxxx> 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

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