Re: [Xen-devel] [PATCH] don't put dom0 console info directly after start_info data

[Juergen Gross <jgross@xxxxxxxx>]

On 06/19/2015 02:04 PM, Jan Beulich wrote:
> > > > On 19.06.15 at 13:06, <"jgross@xxxxxxxx".non-mime.internet> wrote:
> > The console information of dom0 is living in the same memory page as the
> > start_info data. Don't put the console data directly after the start_info
> > to leave some room for future structure enlargements. Otherwise a dom0
> > with a newer start_info layout than the hypervisor could interprete
> > console data as part of the start_info data.
> >
> > Before commit 50bd1f0825339dfacde471df7664729216fc46e3 there used to be a
> > padding at the end of start_info, but this was removed as it was regarded
> > to be not necessary.
> Said commit removed padding from shared_info, not start_info.
Aargh, not enough coffee, I guess.

Sorry for the noise.


Juergen


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