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From: Douglas McClendon <dmc@filteredperception.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] block composite driver and partition driver
Date: Tue, 30 Jan 2007 16:28:26 -0600	[thread overview]
Message-ID: <45BFC68A.5010704@filteredperception.org> (raw)
In-Reply-To: <20070130112442.BVE66081@po0.mail.umd.edu>

jma5@umd.edu wrote:
> I've finally gotten around to working on my multipart driver again.

Why?  I'm new to the list.  Can you elaborate what sorts of things this 
would be used for?  I haven't yet gotten around to writing my per device 
snapshot enablable/specifiable COW tmpfiles patch.  But your code, while 
I have no clue how it might be used, seems like it might interrelate 
with that (or if not, I'm still curious).

-dmc

> 
> block-composite.c is the basic low level composite image format, which lets you
> use a bunch of disk images as a single image.
> 
> block-ram.c is a ram block device, with the size of the "image" given in the
> number of disk sectors.
> 
> block-partition.c is a partition block device that uses the composite driver
> to combine partitions together along with a fake mbr that it generates and
> stores inside of a ram block device. (It doesn't work yet - for some reason the
> number of cylinders being reported to the guest OS is 0.)
> 
> --
> Infinite complexity begets infinite beauty.
> Infinite precision begets infinite perfection.
> 

  reply	other threads:[~2007-01-30 22:30 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-30 16:24 [Qemu-devel] block composite driver and partition driver jma5
2007-01-30 22:28 ` Douglas McClendon [this message]
  -- strict thread matches above, loose matches on Subject: below --
2007-01-31  5:26 jbrown105

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