From: Amit Shah <amit.shah@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: pbonzini@redhat.com, quintela@redhat.com, qemu-devel@nongnu.org,
afaerber@suse.de
Subject: Re: [Qemu-devel] [PATCH v3 4/5] migration: Append JSON description of migration stream
Date: Tue, 20 Jan 2015 16:00:37 +0530 [thread overview]
Message-ID: <20150120103037.GH31174@grmbl.mre> (raw)
In-Reply-To: <1419604968-87437-5-git-send-email-agraf@suse.de>
On (Fri) 26 Dec 2014 [15:42:47], Alexander Graf wrote:
> One of the annoyances of the current migration format is the fact that
> it's not self-describing. In fact, it's not properly describing at all.
> Some code randomly scattered throughout QEMU elaborates roughly how to
> read and write a stream of bytes.
>
> We discussed an idea during KVM Forum 2013 to add a JSON description of
> the migration protocol itself to the migration stream. This patch
> adds a section after the VM_END migration end marker that contains
> description data on what the device sections of the stream are composed of.
Can you add a note saying why this is safe for migrations to qemu
versions that don't expect this new json data?
Amit
next prev parent reply other threads:[~2015-01-20 10:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-26 14:42 [Qemu-devel] [PATCH v3 0/5] Migration Deciphering aid Alexander Graf
2014-12-26 14:42 ` [Qemu-devel] [PATCH v3 1/5] QJSON: Add JSON writer Alexander Graf
2015-01-06 15:41 ` Eric Blake
2015-01-06 21:39 ` Alexander Graf
2014-12-26 14:42 ` [Qemu-devel] [PATCH v3 2/5] " Alexander Graf
2015-01-06 15:44 ` Eric Blake
2015-01-06 21:16 ` Alexander Graf
2014-12-26 14:42 ` [Qemu-devel] [PATCH v3 3/5] qemu-file: Add fast ftell code path Alexander Graf
2015-01-06 15:46 ` Eric Blake
2014-12-26 14:42 ` [Qemu-devel] [PATCH v3 4/5] migration: Append JSON description of migration stream Alexander Graf
2015-01-06 15:56 ` Eric Blake
2015-01-06 21:25 ` Alexander Graf
2015-01-20 10:30 ` Amit Shah [this message]
2014-12-26 14:42 ` [Qemu-devel] [PATCH v3 5/5] Add migration stream analyzation script Alexander Graf
2015-01-06 16:05 ` Eric Blake
2015-01-06 21:29 ` Alexander Graf
2015-01-20 10:31 ` [Qemu-devel] [PATCH v3 0/5] Migration Deciphering aid Amit Shah
2015-01-20 10:54 ` Alexander Graf
2015-01-21 6:05 ` Amit Shah
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