 Home |
Products |
Support |
Community |
News |
xen-devel
RE: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge
| To: | Keir Fraser <keir@xxxxxxx>, Anthony Perard <anthony.perard@xxxxxxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge. |
| From: | Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx> |
| Date: | Mon, 18 Oct 2010 15:52:30 +0100 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Delivery-date: | Mon, 18 Oct 2010 07:57:18 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <C8DE5D3D.2627C%keir@xxxxxxx> |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| References: | <1287164158-11999-1-git-send-email-anthony.perard@xxxxxxxxxx> <C8DE5D3D.2627C%keir@xxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Actsl5U/gwSwcITRuEGzK3edEwEIKACO+oIg |
| Thread-topic: | [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge. |
> We cannot make changes to qemu-dm that are not backwards compatible with > saved guests. Not only does this affect qemu in this case, but the > register > blocks you move around also affect Xen's emulation of ACPI pmtimer. Both > will/would need to be configurable based on whether this is an old or new > guest. > > Hence this has to be strongly NACKed in its current form. It's getting to the point where we might have to consider having two qemu binaries, one for compatibility, one that new VMs are transitioned on to. Things are now so different that I'm worried that installed guests might complain even when just fresh booted on the new qemu. This is something that we'd need to test and devise workarounds. Trying to retain saved image compatibility with a single binary looks ugly. Ian _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | RE: [Xen-devel] [PATCH] time-xen : Reset monotonic time when sync up time from dom0 to domU, Dan Magenheimer |
|---|---|
| Next by Date: | Re: [Xen-devel] [PATCH] xen: do not unmask disabled IRQ on eoi., Stefano Stabellini |
| Previous by Thread: | Re: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge., Keir Fraser |
| Next by Thread: | RE: [Xen-devel] [PATCH 00/02] firmware changes as part of QEMU/Xen merge., Stefano Stabellini |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
