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Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live
From: |
Serge Hallyn |
Subject: |
Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm |
Date: |
Tue, 29 Jul 2014 13:41:07 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Quoting Paolo Bonzini (address@hidden):
> Il 29/07/2014 15:27, Serge Hallyn ha scritto:
> > Quoting Paolo Bonzini (address@hidden):
> >> Il 29/07/2014 15:03, Serge E. Hallyn ha scritto:
> >>>
> >>> And from there I think the thing to do will be to introduce a transient
> >>> alternate package that has the pc-1.0 alias pointing ot pc-1.0-qemu-kvm
> >>
> >> This should be done in the main package, too.
> >
> > That seems like a problem, unless I"m misunderstanding something. If we do
> > that in the main package, then anyone running a pc-1.0 system under the
> > qemu package won't be able to migrate. Wouldn't it be better to have
> > pc-1.0 alias by default point to the pc-1.0-qemu machine type?
>
> You'd break that for people who have already upgraded from 12.04 and
> 14.04 and are keeping the old machine type. You'd fix it for people who
> are upgrading now.
>
> I think providing a smoother upgrade path is worthwhile, even if it
> annoys someone else.
>
> Unfortunately the only solution is a lot of testing *before* a release,
> and in fact this is why 2.1 was delayed by a migration problem. Once
> the release is out, you'll have to make someone unhappy.
Right.
> >>> and depends on the legacy pxe rom.
> >>
> >> If you can make the pxe-virtio.rom file 64k or less, then that would be
> >> a good idea for 14.04 in general. Newer machine types use
> >> efi-virtio.rom, so you won't break "-M pc" migration.
> >
> > Hm. No idea offhand how I'd do that, but it sounds worth looking into.
>
> I'm not sure either. You could simply package the 12.04 ipxe ROMs into
> 14.04, and add a note about getting the sources for GPL friendliness.
Right, as an alternate transient package, that was my original plan.
I need to look at ipxe at some point soon anyway, trimming it down
wouldn't hurt.
thanks,
-serge
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, (continued)
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Serge E. Hallyn, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Alex Bligh, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Paolo Bonzini, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Serge Hallyn, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Paolo Bonzini, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Alex Bligh, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Paolo Bonzini, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Alex Bligh, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Paolo Bonzini, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Alex Bligh, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm,
Serge Hallyn <=
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Alex Bligh, 2014/07/29
- Re: [Qemu-devel] [PATCH] [RFC] Add machine type pc-1.0-qemu-kvm for live migrate compatibility with qemu-kvm, Serge Hallyn, 2014/07/29