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[Qemu-devel] Citrix VHD implementation
From: |
Philipp Schmid |
Subject: |
[Qemu-devel] Citrix VHD implementation |
Date: |
Sat, 28 Feb 2009 19:56:00 +0100 |
Hi,
as some of you might know, citrix has open sourced the library they
use to read and write to VHD disk images.
I'm trying to implementing a block-vhd driver on top of libvhd, but my
C knowledge is very limited as I haven't written any code in C for a
long time.
What I already have is a git repo with the libvhd code extracted from
the xen-unstable tree with the blocktap2 patches applied.
libvhd also comes with vhd-util, a utility to create and modify vhd
images.
I have only tried to compile it on ubuntu 8.10, so it might not work
on your system.
The git repo is hosted on github: http://github.com/schmidp/libvhd/tree/master
Are there any docs about how to implement a block driver for qemu?
As far as I have seen from the qemu code, block_int.h defines the
interface and you register your driver in block.c, but that is all
I've found out so far.
I will try to implement a synchrones driver first as it seems more
simple...
greets Philipp
ps: I'm not affiliated with citrix in any way
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