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Re: [Qemu-devel] [PATCH v3 0/4] Initial VHDX support
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v3 0/4] Initial VHDX support |
Date: |
Wed, 1 May 2013 14:43:04 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Apr 29, 2013 at 02:48:15PM -0400, Jeff Cody wrote:
>
> Differences from v2:
>
>
> Patch 2/4: changed 2 uint8_t[16] to MSGUID (Kevin)
> renamed all strucs to proper style (Kevin)
> indentations / style (Kevin)
> Removed/fixed outdated comments (Stefan)
> dropped vhdx_header_padded (Kevin)
>
> Patch 3/4: removed hunk that was meant for old patch 5/5 (Fam)
> check VHDX header version field (Fam)
> validate file type id in open and not just probe (Kevin)
> allow headers with seq # of 0 if other header is invalid (Kevin)
> fixed masking typo for parent meta present (Kevin)
> removed error check for 512-byte sectors (Kevin)
> verify region and metadata table guid are unique (Kevin)
> removed signed/unsigned comparisons (Stefan)
> sanity checking on rt.entry_count (Stefan)
> use clz_() instead of inline code (Stefan)
> bat_rt.length sanity check - compute it rather
> than trust the entry length (Stefan)
>
> Patch 5 (v2): Dropped
>
> This adds the initial support for VHDX image files.
>
> It currently only supports read operations of VHDX, for fixed and dynamic
> files.
>
> Notably, the following is not yet supported:
> * Differencing files
> * Log replay (so we will refuse to open any images that are not 'clean')
> * .bdrv_create()
> * write operations other than to the header
>
>
> Jeff Cody (4):
> qemu: add castagnoli crc32c checksum algorithm
> block: vhdx header for the QEMU support of VHDX images
> block: initial VHDX driver support framework - supports open and probe
> block: add read-only support to VHDX image format.
>
> block/Makefile.objs | 1 +
> block/vhdx.c | 972
> ++++++++++++++++++++++++++++++++++++++++++++++++++
> block/vhdx.h | 325 +++++++++++++++++
> include/qemu/crc32c.h | 35 ++
> util/Makefile.objs | 1 +
> util/crc32c.c | 115 ++++++
> 6 files changed, 1449 insertions(+)
> create mode 100644 block/vhdx.c
> create mode 100644 block/vhdx.h
> create mode 100644 include/qemu/crc32c.h
> create mode 100644 util/crc32c.c
Do you have links to vhdx files I can test?
Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block
Stefan
- Re: [Qemu-devel] [PATCH v3 0/4] Initial VHDX support,
Stefan Hajnoczi <=