From: Laurent Vivier <Laurent.Vivier@bull.net>
Cc: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 0/2 v2][UPDATED] Open disk images with O_DIRECT
Date: Mon, 17 Dec 2007 23:09:18 +0100 [thread overview]
Message-ID: <11979293581658@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()".
This version is an updated version with last CVS changes.
[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:[~2007-12-17 22:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-17 22:09 Laurent Vivier [this message]
2007-12-17 22:09 ` [Qemu-devel] [PATCH 1/2 v2][UPDATE] Add "cache" parameter to "-drive" Laurent Vivier
2007-12-17 22:09 ` [Qemu-devel] [PATCH 2/2 v2][UPDATED] Direct IDE I/O Laurent Vivier
2007-12-17 23:02 ` Fabrice Bellard
2007-12-18 0:03 ` Paul Brook
2007-12-18 9:55 ` Laurent Vivier
2007-12-18 16:38 ` Avi Kivity
2007-12-17 23:08 ` [Qemu-devel] [PATCH 1/2 v2][UPDATE] Add "cache" parameter to "-drive" Fabrice Bellard
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