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Re: [Qemu-devel] [PATCHv5 08/13] qemu: add support for resizing regions
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCHv5 08/13] qemu: add support for resizing regions |
Date: |
Thu, 18 Jun 2009 19:44:44 +0300 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Thu, Jun 18, 2009 at 05:32:11PM +0100, Paul Brook wrote:
> On Thursday 18 June 2009, Michael S. Tsirkin wrote:
> > Make it possible to resize PCI regions. This will be used by virtio
> > with MSI-X, where the region size depends on whether MSI-X is enabled,
> > and can change across load/save.
>
> I thought we'd agreed we shouldn't be doing this.
> i.e. if the user tries to load the wrong device, just bail out.
>
> Paul
We need a way to generally prevent load from changing registers in a way
that can not be done by a guest. I haven't implemented this feature yet
though.
--
MST