From: Paul Brook <paul@codesourcery.com>
To: Chris Wright <chrisw@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>,
quintela@redhat.com, qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field
Date: Thu, 10 Jun 2010 17:45:06 +0100 [thread overview]
Message-ID: <201006101745.07039.paul@codesourcery.com> (raw)
In-Reply-To: <20100610164016.GG14393@x200.localdomain>
> > > to the identify the device. It should probably do this the same way
> > > that we identify the saved state for the device. Currently I think
> > > this is an arbitrary vmstate name/id, but I expect this to change to a
> > > qdev address (e.g. /i440FX-pcihost/pci.0/_addr_04.0").
> >
> > Ok, that seems fairly reasonable, so from a device pointer we can get
> > something like "/i440FX-pcihost/pci.0/_addr_04.0", then we can add
> > something like ":rom" or ":bar.0" to it via an extra string.
>
> In the fun game of what ifs...
>
> The cmdline starts w/ device A placed at pci bus addr 00:04.0 (so
> matched on source and target). The source does hotunplug of 04.0 and
> replaces it w/ new device. I think we need something that is more
> uniquely identifying the block. Not sure that device name is correct or
> a generation ID.
You shouldn't be solving this problem for RAM blocks. You should be solving it
for the device state.
Paul
next prev parent reply other threads:[~2010-06-10 16:46 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-08 19:14 [Qemu-devel] [RFC PATCH 0/6] RAM migration overhaul Alex Williamson
2010-06-08 19:15 ` [Qemu-devel] [RFC PATCH 1/6] qemu_ram_alloc: Remove duplicate code Alex Williamson
2010-06-08 21:00 ` [Qemu-devel] " Chris Wright
2010-06-08 19:15 ` [Qemu-devel] [RFC PATCH 2/6] ram_blocks: Convert to a QLIST Alex Williamson
2010-06-08 21:26 ` [Qemu-devel] " Chris Wright
2010-06-08 21:45 ` Alex Williamson
2010-06-08 21:51 ` Chris Wright
2010-06-09 8:19 ` Juan Quintela
2010-06-09 20:11 ` [Qemu-devel] " Cam Macdonell
2010-06-09 20:55 ` Alex Williamson
2010-06-09 21:12 ` Yoshiaki Tamura
2010-06-08 19:15 ` [Qemu-devel] [RFC PATCH 3/6] RAMBlock: Add a name field Alex Williamson
2010-06-08 20:07 ` [Qemu-devel] " Anthony Liguori
2010-06-08 20:09 ` Alex Williamson
2010-06-08 21:41 ` Chris Wright
2010-06-09 3:13 ` Alex Williamson
2010-06-09 11:55 ` Avi Kivity
2010-06-09 12:56 ` Paul Brook
2010-06-09 2:30 ` [Qemu-devel] " Paul Brook
2010-06-09 2:40 ` Anthony Liguori
2010-06-09 2:54 ` Paul Brook
2010-06-09 4:19 ` Alex Williamson
2010-06-09 12:18 ` Paul Brook
2010-06-09 16:37 ` Alex Williamson
2010-06-09 20:36 ` Paul Brook
2010-06-10 8:23 ` Gerd Hoffmann
2010-06-10 14:33 ` Alex Williamson
2010-06-10 14:49 ` Paul Brook
2010-06-10 15:21 ` Alex Williamson
2010-06-11 8:48 ` Gerd Hoffmann
2010-06-11 15:50 ` Alex Williamson
2010-06-11 16:12 ` Paul Brook
2010-06-11 8:45 ` Gerd Hoffmann
2010-06-10 15:05 ` Alex Williamson
2010-06-10 16:40 ` Chris Wright
2010-06-10 16:45 ` Paul Brook [this message]
2010-06-09 11:58 ` Avi Kivity
2010-06-09 13:57 ` Anthony Liguori
2010-06-09 14:09 ` Paul Brook
2010-06-09 7:28 ` Gerd Hoffmann
2010-06-08 19:16 ` [Qemu-devel] [RFC PATCH 4/6] Remove uses of ram.last_offset (aka last_ram_offset) Alex Williamson
2010-06-08 19:16 ` [Qemu-devel] [RFC PATCH 5/6] savevm: Migrate RAM based on name/offset Alex Williamson
2010-06-08 20:12 ` [Qemu-devel] " Anthony Liguori
2010-06-08 21:12 ` Alex Williamson
2010-06-08 20:54 ` Chris Wright
2010-06-08 21:22 ` Alex Williamson
2010-06-08 19:16 ` [Qemu-devel] [RFC PATCH 6/6] savevm: Use RAM blocks for basis of migration Alex Williamson
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