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From: Anthony Liguori <anthony@codemonkey.ws>
To: Christoph Hellwig <hch@lst.de>
Cc: Kevin Wolf <kwolf@redhat.com>,
	qemu-devel@nongnu.org,
	Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
	Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [RFC] qed: Add QEMU Enhanced Disk format
Date: Tue, 07 Sep 2010 17:29:53 -0500	[thread overview]
Message-ID: <4C86BCE1.9030006@codemonkey.ws> (raw)
In-Reply-To: <20100907213524.GA17980@lst.de>

On 09/07/2010 04:35 PM, Christoph Hellwig wrote:
> On Tue, Sep 07, 2010 at 11:12:15AM -0500, Anthony Liguori wrote:
>    
>> IOW, what are valid values for backing_fmt?  "raw" and "qed" are obvious
>> but what does it mean from a formal specification perspective to have
>> "vmdk"?  Is that VMDK v3 or v4, what if there's a v5?
>>      
> It might be better to just use a uint16_t field for the backing format,
> where each valid format gets a bit position assigned.  For now just raw,
> qed and qcow2 would be enough.
>    

If it were just one bit for just raw or not raw, wouldn't that be enough?

Everything that isn't raw can be probed reliably so we really only need 
to distinguish between things that are probe-able and things that are 
not probe-able.

Regards,

Anthony Liguori

  reply	other threads:[~2010-09-07 22:30 UTC|newest]

Thread overview: 132+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-06 10:04 [Qemu-devel] [RFC] qed: Add QEMU Enhanced Disk format Stefan Hajnoczi
2010-09-06 10:25 ` Alexander Graf
2010-09-06 10:31   ` Stefan Hajnoczi
2010-09-06 14:21   ` Luca Tettamanti
2010-09-06 14:24     ` Alexander Graf
2010-09-06 16:27       ` Anthony Liguori
2010-09-06 10:27 ` [Qemu-devel] " Kevin Wolf
2010-09-06 12:40   ` Stefan Hajnoczi
2010-09-06 12:57     ` Anthony Liguori
2010-09-06 13:02       ` Stefan Hajnoczi
2010-09-06 14:10       ` Kevin Wolf
2010-09-06 16:45         ` Anthony Liguori
2010-09-06 12:45   ` Anthony Liguori
2010-09-10 23:49     ` H. Peter Anvin
2010-09-06 11:18 ` [Qemu-devel] " Daniel P. Berrange
2010-09-06 12:52   ` Anthony Liguori
2010-09-06 13:35     ` Daniel P. Berrange
2010-09-06 16:38       ` Anthony Liguori
2010-09-06 13:06 ` Anthony Liguori
2010-09-07 14:51   ` Avi Kivity
2010-09-07 15:40     ` Anthony Liguori
2010-09-07 16:09       ` Avi Kivity
2010-09-07 16:25         ` Anthony Liguori
2010-09-07 22:27           ` Anthony Liguori
2010-09-08  8:23             ` Avi Kivity
2010-09-08  8:41               ` Alexander Graf
2010-09-08  8:53                 ` Avi Kivity
2010-09-08 11:15                   ` Stefan Hajnoczi
2010-09-08 15:38                     ` Christoph Hellwig
2010-09-08 16:30                       ` Anthony Liguori
2010-09-08 20:23                         ` Christoph Hellwig
2010-09-08 20:28                           ` Anthony Liguori
2010-09-09  2:35                             ` Christoph Hellwig
2010-09-09  6:24                               ` Avi Kivity
2010-09-09 21:01                                 ` Christoph Hellwig
2010-09-10 11:15                                   ` Avi Kivity
2010-09-09  6:53                     ` Avi Kivity
2010-09-10 21:22                     ` Jamie Lokier
2010-09-14 10:46                       ` Stefan Hajnoczi
2010-09-14 11:08                         ` Stefan Hajnoczi
2010-09-14 12:54                         ` Anthony Liguori
2010-09-08 12:55                   ` Anthony Liguori
2010-09-09  6:30                     ` Avi Kivity
2010-09-08 12:48               ` Anthony Liguori
2010-09-08 13:20                 ` Kevin Wolf
2010-09-08 13:26                   ` Anthony Liguori
2010-09-08 13:46                     ` Kevin Wolf
2010-09-09  6:45                 ` Avi Kivity
2010-09-09  6:48                   ` Avi Kivity
2010-09-09 12:49                   ` Anthony Liguori
2010-09-09 16:48                     ` [Qemu-devel] " Paolo Bonzini
2010-09-09 17:02                       ` Anthony Liguori
2010-09-09 20:56                         ` Christoph Hellwig
2010-09-10 10:53                         ` Avi Kivity
2010-09-10 11:14                     ` [Qemu-devel] " Avi Kivity
2010-09-10 11:25                       ` Avi Kivity
2010-09-10 11:33                         ` Stefan Hajnoczi
2010-09-10 11:43                           ` Avi Kivity
2010-09-10 13:22                             ` Anthony Liguori
2010-09-10 13:48                               ` Christoph Hellwig
2010-09-10 15:02                                 ` Anthony Liguori
2010-09-10 15:18                                   ` Kevin Wolf
2010-09-10 15:53                                     ` Anthony Liguori
2010-09-10 16:05                                       ` Kevin Wolf
2010-09-10 17:10                                         ` Anthony Liguori
2010-09-10 17:44                                           ` Kevin Wolf
2010-09-10 17:46                                           ` Miguel Di Ciurcio Filho
2010-09-10 14:02                               ` Avi Kivity
2010-09-10 13:47                           ` Christoph Hellwig
2010-09-10 14:05                             ` Avi Kivity
2010-09-10 14:12                               ` Christoph Hellwig
2010-09-10 14:24                                 ` Avi Kivity
2010-09-10 13:16                         ` Anthony Liguori
2010-09-10 14:06                           ` Avi Kivity
2010-09-10 11:43                       ` Stefan Hajnoczi
2010-09-10 12:06                         ` Avi Kivity
2010-09-10 13:28                           ` Anthony Liguori
2010-09-10 12:12                         ` Kevin Wolf
2010-09-10 12:35                           ` Stefan Hajnoczi
2010-09-10 12:47                             ` Avi Kivity
2010-09-10 13:10                               ` Stefan Hajnoczi
2010-09-10 13:19                                 ` Avi Kivity
2010-09-10 13:39                               ` Anthony Liguori
2010-09-10 13:52                                 ` Christoph Hellwig
2010-09-10 13:56                                 ` Avi Kivity
2010-09-10 13:48                             ` Kevin Wolf
2010-09-10 13:14                       ` Anthony Liguori
2010-09-10 13:47                         ` Avi Kivity
2010-09-10 14:56                           ` Anthony Liguori
2010-09-10 15:49                             ` Avi Kivity
2010-09-10 17:07                               ` Anthony Liguori
2010-09-10 17:42                                 ` Kevin Wolf
2010-09-10 19:33                                   ` Anthony Liguori
2010-09-13 10:41                                     ` Kevin Wolf
2010-09-12 13:24                                 ` Avi Kivity
2010-09-12 15:13                                   ` Anthony Liguori
2010-09-12 15:56                                     ` Avi Kivity
2010-09-12 17:09                                       ` Anthony Liguori
2010-09-12 17:51                                         ` Avi Kivity
2010-09-12 20:18                                           ` Anthony Liguori
2010-09-13  9:24                                             ` Avi Kivity
2010-09-13 11:28                                         ` Kevin Wolf
2010-09-13 11:34                                           ` Avi Kivity
2010-09-13 11:48                                             ` Kevin Wolf
2010-09-13 13:19                                               ` Anthony Liguori
2010-09-13 13:12                                           ` Anthony Liguori
2010-09-13 11:03                                       ` Kevin Wolf
2010-09-13 13:07                                         ` Anthony Liguori
2010-09-13 13:24                                           ` Kevin Wolf
2010-09-07 16:12     ` Anthony Liguori
2010-09-07 21:35       ` Christoph Hellwig
2010-09-07 22:29         ` Anthony Liguori [this message]
2010-09-07 22:40           ` Christoph Hellwig
2010-09-08 15:07     ` Stefan Hajnoczi
2010-09-09  6:59       ` Avi Kivity
2010-09-09 17:43         ` Anthony Liguori
2010-09-09 20:46           ` Christoph Hellwig
2010-09-10 11:22           ` Avi Kivity
2010-09-10 11:29             ` Stefan Hajnoczi
2010-09-10 11:37               ` Avi Kivity
2010-09-07 13:58 ` Avi Kivity
2010-09-07 19:25 ` Blue Swirl
2010-09-07 20:41   ` Anthony Liguori
2010-09-08  7:48     ` Kevin Wolf
2010-09-08 15:37   ` Stefan Hajnoczi
2010-09-08 18:24     ` Blue Swirl
2010-09-08 18:35       ` Anthony Liguori
2010-09-08 18:56         ` Blue Swirl
2010-09-08 19:19           ` Anthony Liguori
2010-09-15 21:01 ` [Qemu-devel] " Michael S. Tsirkin
2010-09-15 21:12   ` Anthony Liguori
  -- strict thread matches above, loose matches on Subject: below --
2010-09-17  3:51 [Qemu-devel] " Khoa Huynh

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