Re: [Xen-devel] fixed location of share info page in HVM guests

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 27/08/2012 18:55, "Olaf Hering" <olaf@xxxxxxxxx> wrote:

> 
> Recently I tried to move the shared_info page in the pvops kernel during
> shutdown, see "xen PVonHVM: move shared_info to MMIO before kexec"
> patch. But this change was reverted because it caused reboot failures
> because the actual moving of the shared page is fragile.

How was it fragile? Moving it into MMIO should just work?

 -- Keir

> So my question is what can be done about it?
> Right now the shared_info page is in the middle of the RAM and will be
> overwritten during kexec because its area is not reserved.
> Can the toolstack help to provide a reserved page which can then be used
> by the kernel?
> 
> Olaf
> 
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