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[Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate |
Date: |
Wed, 15 Dec 2010 12:00:24 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Dec 14, 2010 at 04:59:55PM +0100, Paolo Bonzini wrote:
> On 12/14/2010 04:41 PM, Alex Williamson wrote:
> >> Maybe in this particular case the advantage is minimal.
> >> But it seems easier to stick to a rule of no more version
> >> bumps than argue about each case.
> >
> >Do we have such a rule? If we have a subsection who's needed function
> >is return 1, I think that's a good indication that it's not appropriate
> >for a subsection and the end result is equivalent to bumping the main
> >driver vmstate version. It's convoluted to try to hide a one-way
> >upgrade in a subsection. Thanks,
>
> Indeed, subsections are for data that is rarely needed so that
> there's some chance (sometimes ~100%) of migration working
> seemlessly.
If a subsection arrives that qemu does
not know about, won't migratin fail?
> In this case it's either
> no-bump-and-live-with-the-consequences, or changing the version id.
>
> Paolo
This was discussed to death already. version ids have the problem
that they don't play nicely with downstreams.
--
MST
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, (continued)
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/13
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/14
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/14
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/14
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Paolo Bonzini, 2010/12/14
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate,
Michael S. Tsirkin <=
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Paolo Bonzini, 2010/12/15
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/15
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Paolo Bonzini, 2010/12/16
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Michael S. Tsirkin, 2010/12/15
- [Qemu-devel] Re: [PATCH] rtl8139: IO memory is not part of vmstate, Alex Williamson, 2010/12/15