From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] [PATCHv5 08/13] qemu: add support for resizing
	regions
Date: Thu, 18 Jun 2009 19:44:44 +0300
Message-ID: <20090618164444.GB19553@redhat.com>
References: <cover.1245330293.git.mst@redhat.com> <20090618131438.GI19092@redhat.com> <200906181735.10458.paul@codesourcery.com>
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Cc: qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>,
	Carsten Otte <cotte@de.ibm.com>, kvm@vger.kernel.org,
	Rusty Russell <rusty@rustcorp.com.au>,
	virtualization@lists.linux-foundation.org,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Blue Swirl <blauwirbel@gmail.com>,
	Anthony Liguori <anthony@codemonkey.ws>,
	Glauber Costa <glommer@redhat.com>
To: Paul Brook <paul@codesourcery.com>
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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