From: Stefan Hajnoczi <stefanha@redhat.com>
To: Philipp Hahn <hahn@univention.de>
Cc: kwolf@redhat.com, Jeff Cody <jcody@redhat.com>,
qemu-devel@nongnu.org, xen-devel@lists.xen.org
Subject: Re: [Qemu-devel] VHD suport in QEMU?
Date: Fri, 1 Nov 2013 10:20:45 +0100 [thread overview]
Message-ID: <20131101092045.GA17709@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <201311010604.19768.hahn@univention.de>
On Fri, Nov 01, 2013 at 06:04:19AM +0100, Philipp Hahn wrote:
> sorry for high-jacking this thread, but I have a questing regarding VHD (without the X): Xen-4.3 switched to upstream QEMUs support for VHD. The dropped their own VHD implementation in blktap2, which supported backing chains, which QEMU currently doesn't. The Xen implementation (xen/tools/blktap2/vhd/lib/ is BSD 3 clause) also supports some kind of journal.
> 1. Does someone know if the journal support for VHD is somehow related to VHDX?
> 2. Has somewone put some work into supporting backing chains? I started to have a look myself some time ago, but had to do other work since then.
Hi Philipp,
I'm not aware of block/vpc.c (classic VHD) improvements at this time.
Out of interest, are the VHD Differencing images you'd like to use come
from Xen, VirtualPC, or something else?
Stefan
next prev parent reply other threads:[~2013-11-01 9:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-30 14:44 [Qemu-devel] [PATCH v8 00/19] VHDX log replay and write support, .bdrv_create() Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 01/19] block: vhdx - minor comments and typo correction Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 02/19] block: vhdx - add header update capability Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 03/19] block: vhdx code movement - VHDXMetadataEntries and BDRVVHDXState to header Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 04/19] block: vhdx - log support struct and defines Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 05/19] block: vhdx - break endian translation functions out Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 06/19] block: vhdx - update log guid in header, and first write tracker Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 07/19] block: vhdx code movement - move vhdx_close() above vhdx_open() Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 08/19] block: vhdx - log parsing, replay, and flush support Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 09/19] block: vhdx - add region overlap detection for image files Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 10/19] block: vhdx - add log write support Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 11/19] block: vhdx " Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 12/19] block: vhdx - remove BAT file offset bit shifting Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 13/19] block: vhdx - move more endian translations to vhdx-endian.c Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 14/19] block: vhdx - break out code operations to functions Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 15/19] block: vhdx - fix comment typos in header, fix incorrect struct fields Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 16/19] block: vhdx - add .bdrv_create() support Jeff Cody
2013-10-31 13:09 ` Stefan Hajnoczi
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 17/19] block: vhdx - update _make_test_img() to filter out vhdx options Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 18/19] block: qemu-iotests for vhdx, add write test support Jeff Cody
2013-10-30 14:44 ` [Qemu-devel] [PATCH v8 19/19] block: vhdx qemu-iotest - log replay of data sector Jeff Cody
2013-10-31 13:10 ` [Qemu-devel] [PATCH v8 00/19] VHDX log replay and write support, .bdrv_create() Stefan Hajnoczi
2013-11-01 15:32 ` Jeff Cody
2013-11-04 11:41 ` Kevin Wolf
2013-11-01 5:04 ` [Qemu-devel] VHD suport in QEMU? Philipp Hahn
2013-11-01 9:20 ` Stefan Hajnoczi [this message]
2013-11-01 11:53 ` Jeff Cody
2013-11-06 14:34 ` [Qemu-devel] [PATCH v8 00/19] VHDX log replay and write support, .bdrv_create() Stefan Hajnoczi
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