From: Johannes Schindelin <Johannes.Schindelin@gmx.de>
To: Fabrice Bellard <fabrice@bellard.org>
Cc: Laurent Vivier <Laurent.Vivier@bull.net>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O
Date: Mon, 3 Dec 2007 11:14:55 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.64.0712031114120.27959@racer.site> (raw)
In-Reply-To: <4753D920.4060500@bellard.org>
Hi,
On Mon, 3 Dec 2007, Fabrice Bellard wrote:
> Laurent Vivier wrote:
> > This patch enhances the "-drive ,cache=off" mode with IDE drive emulation
> > by removing the buffer used in the IDE emulation.
> > ---
> > block.c | 10 +++
> > block.h | 2 block_int.h | 1 cpu-all.h | 1 exec.c |
> > 19 ++++++
> > hw/ide.c | 176
> > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
> > vl.c | 1 7 files changed, 204 insertions(+), 6 deletions(-)
>
> What's the use of keeping the buffered case ?
AFAICT if your guest is DOS without a disk caching driver, you do not
really want to use O_DIRECT.
Ciao,
Dscho
prev parent reply other threads:[~2007-12-03 11:15 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-03 10:09 [Qemu-devel] [PATCH 0/2 v2] Open disk images with O_DIRECT Laurent Vivier
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 [this message]
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