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Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O
From: |
Johannes Schindelin |
Subject: |
Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O |
Date: |
Mon, 3 Dec 2007 11:14:55 +0000 (GMT) |
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
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, (continued)
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Laurent Vivier, 2007/12/04
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Gerd Hoffmann, 2007/12/03
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Samuel Thibault, 2007/12/03
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Anthony Liguori, 2007/12/03
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Gerd Hoffmann, 2007/12/04
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Anthony Liguori, 2007/12/04
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Gerd Hoffmann, 2007/12/04
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Anthony Liguori, 2007/12/05
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Paul Brook, 2007/12/03
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O, Laurent Vivier, 2007/12/03
- Re: [Qemu-devel] [PATCH 2/2 v2] Direct IDE I/O,
Johannes Schindelin <=