From: Laurent Vivier <Laurent.Vivier@bull.net>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 0/2 v2] Open disk images with O_DIRECT
Date: Mon, 3 Dec 2007 11:09:19 +0100 [thread overview]
Message-ID: <1196676559385@bull.net> (raw)
In-Reply-To:
These patches allow to open file using O_DIRECT and bypass the host I/O cache.
The v2 is a new version including comments from Anthony Liguori ("directio"
has been renamed "cache"), from Balazs Attila-Mihaly (for Win32 support,
not tested) and Samuel Thibault (for the generic function qemu_memalign()".
[PATCH 1/2] Add "cache" parameter to "-drive"
Using "cache=off" with "-drive" will open the disk image
file using "O_DIRECT".
[PATCH 2/2] Direct IDE I/O
This patch enhances the "-drive ,cache=off" mode with IDE drive emulation
by removing the buffer used in the IDE emulation.
Laurent
next reply other threads:[~2007-12-03 10:09 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-03 10:09 Laurent Vivier [this message]
2007-12-03 10:09 ` [Qemu-devel] [PATCH 1/2 v2] Add "cache" parameter to "-drive" Laurent Vivier
2007-12-03 10:09 ` [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O Laurent Vivier
2007-12-03 10:23 ` Fabrice Bellard
2007-12-03 10:30 ` Laurent Vivier
2007-12-03 11:40 ` Markus Hitter
2007-12-03 15:39 ` Paul Brook
2007-12-03 19:26 ` Samuel Thibault
2007-12-03 15:54 ` Anthony Liguori
2007-12-03 17:08 ` Samuel Thibault
2007-12-03 17:17 ` Paul Brook
2007-12-03 17:49 ` Jamie Lokier
2007-12-03 18:08 ` Anthony Liguori
2007-12-03 18:40 ` Jamie Lokier
2007-12-03 18:06 ` Anthony Liguori
2007-12-03 19:10 ` Laurent Vivier
2007-12-03 19:16 ` Paul Brook
2007-12-03 21:36 ` Anthony Liguori
2007-12-04 12:49 ` Gerd Hoffmann
2007-12-04 13:02 ` Laurent Vivier
2007-12-04 8:13 ` Laurent Vivier
2007-12-03 21:13 ` Gerd Hoffmann
2007-12-03 21:23 ` Samuel Thibault
2007-12-03 21:38 ` Anthony Liguori
2007-12-04 13:21 ` Gerd Hoffmann
2007-12-04 15:03 ` Anthony Liguori
2007-12-04 16:18 ` Gerd Hoffmann
2007-12-05 14:47 ` Anthony Liguori
2007-12-03 19:14 ` Paul Brook
2007-12-03 19:00 ` Laurent Vivier
2007-12-03 11:14 ` Johannes Schindelin
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