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Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field
From: |
Alex Williamson |
Subject: |
Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field |
Date: |
Thu, 10 Jun 2010 08:33:28 -0600 |
On Thu, 2010-06-10 at 10:23 +0200, Gerd Hoffmann wrote:
> > I may have been a bit misleading here. What we really want to do is use the
> > same matching algorithm as is used by the rest of the device state.
> > Currently
> > this is a vmstate name and [arbitrary] numeric id. I don't remember whether
> > there's a convenient link from a device to its associated vmstate - if there
> > isn't there probably should be.
>
> DeviceState->info->vmsd->name for the name.
> Dunno about the numeric id, I think savevm.c doesn't export it.
Ok, we can certainly do <vmsd->name>.<vmsd->instance>\<driver string>.
It seems like this highlights a deficiency in the vmstate matching
though. If on the source we do:
> pci_add addr=4 nic model=e1000
> pci_add addr=3 nic model=e1000
Then we start the target, ordering the nics sequentially, are we going
to store the vmstate into the opposite nics? AIUI, libvirt does this
correctly today, but I don't like the idea of being required to remember
the history of a vm to migrate it.
Alex
- [Qemu-devel] Re: [RFC PATCH 3/6] RAMBlock: Add a name field, (continued)
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/08
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Anthony Liguori, 2010/06/08
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/08
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Alex Williamson, 2010/06/09
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/09
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Alex Williamson, 2010/06/09
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/09
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Gerd Hoffmann, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field,
Alex Williamson <=
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Alex Williamson, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Gerd Hoffmann, 2010/06/11
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Alex Williamson, 2010/06/11
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/11
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Gerd Hoffmann, 2010/06/11
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Alex Williamson, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Chris Wright, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Paul Brook, 2010/06/10
- Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field, Avi Kivity, 2010/06/09