Re: [Xen-devel] [PATCH 1/1] xc_domain_restore: Allow QEMU to increase memory

[Hongyang Yang <yanghy@xxxxxxxxxxxxxx>]

On 04/15/2015 06:09 PM, Ian Campbell wrote:
> On Wed, 2015-04-15 at 10:46 +0100, Stefano Stabellini wrote:
> > On Tue, 14 Apr 2015, Don Slutz wrote:
> > > On 04/14/15 04:53, Wei Liu wrote:
> > > > Is there a way to know how much more memory each option rom needs? If
> > > > so, you can correctly account for the extra memory you need. This would
> > > > be an ideal fix to this problem.
> > > I do not know of a way to get this info.  It can change based on the
> > > QEMU version.
> > Indeed it would be fragile to rely on a fixed size for each option rom,
> > given that they come out of the QEMU tree and can change at any time.
> Only having dipped into this thread so far it seems to me we need some
> way for qemu to communicate the result of its manipulations of maxmem
> into the migration stream explicitly to be picked up by the other end.
Totally agreed.

> Ian
>
> .
--
Thanks,
Yang.

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