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[Qemu-devel] Re: Qemu SH4 status #2
From: |
yoshii . takashi |
Subject: |
[Qemu-devel] Re: Qemu SH4 status #2 |
Date: |
Wed, 12 Nov 2008 13:33:13 +0900 |
Hi,
> I'm still getting segmentation fault at exact same
> location. Have you made additional patches?
Please find attached file "qemu081111.diff".
Basically, this is an aggregate of patches found on qemu-devel ML,
with some conflicts against current svn source being resolved,
and some small fix are added, which are scheduled to be posted after
I finished with my pending patches.
I post this to share information between qemu and linux/sh people,
and hopefully accelerate debugging with linux people's help.
Another file "linuxconfig_r2d_qemu.diff" is diff for linux kernel
configuretion. It changes following parameters from r2d+'s defconfig.
- Cache -> off (qemu has no cache)
- commandline change (for debugging)
- 8139too -> 8139cp (qemu's default is c+, still thinking how to switch)
- SH SPI -> off (sci emulation is not mature enough to handle it)
Build procedure is as follows,
Configure kernel:
make ARCH=sh rts7751r2dplus_defconfig
patch .config < linuxconfig_r2d_qemu.diff
(and build)
Configure Qemu:
./configure --disable-system --target-list=sh4-softmmu \
--disable-linux-user --disable-kqemu
Execute:
sh4-softmmu/qemu-system-sh4 -M r2d --serial vc --serial /dev/tty \
--kernel zImage --append "console=tty0 root=/dev/sda" \
-usb --usbdevice keyboard --usbdevice mouse disk.img
I've tested it on qemu svn head this morning.
You will see penguin logo, and fbcon input/output working.
For debugging purpose, console=ttySC0,115200 might help.
/yoshii
qemu081111.diff
Description: Text Data
linuxconfig_r2d_qemu.diff
Description: Text Data