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Re: [Qemu-devel] [PATCH] Migration compatibility for serial
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] Migration compatibility for serial |
Date: |
Wed, 17 Jun 2015 09:25:47 +0200 |
On Wed, Jun 17, 2015 at 09:11:56AM +0200, Markus Armbruster wrote:
> "Michael S. Tsirkin" <address@hidden> writes:
>
> > On Wed, Jun 17, 2015 at 08:52:42AM +0200, Markus Armbruster wrote:
> >> "Dr. David Alan Gilbert (git)" <address@hidden> writes:
> >>
> >> > From: "Dr. David Alan Gilbert" <address@hidden>
> >> >
> >> > Older QEMUs dont understand the new (sub)sections that
> >> > may be generated in the serial device. Limit their generation
> >> > to newer machine types.
> >>
> >> Please explain briefly what state migration can lose with old machine
> >> types, and how this could impact the guest. The commits adding the
> >> subsections should have the information[*]. Pointers to them might
> >> suffice.
> >>
> >>
> >> [*] Should != do; I didn't check.
> >
> > OTOH if we have flags named after specific portions we skip,
> > and not after qemu versions, this becomes evident from code.
>
> The commit message needs to spell things out regardless.
Sure, thanks for pointing this out.
- [Qemu-devel] [PATCH] Migration compatibility for serial, Dr. David Alan Gilbert (git), 2015/06/16
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Paolo Bonzini, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Michael S. Tsirkin, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Paolo Bonzini, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Michael S. Tsirkin, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Juan Quintela, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Dr. David Alan Gilbert, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Michael S. Tsirkin, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Dr. David Alan Gilbert, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Michael S. Tsirkin, 2015/06/17
- Re: [Qemu-devel] [PATCH] Migration compatibility for serial, Michael S. Tsirkin, 2015/06/17