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Re: [Qemu-devel] [PATCH 00/20] MIPS Magnum conversion to qdev

From: Blue Swirl
Subject: Re: [Qemu-devel] [PATCH 00/20] MIPS Magnum conversion to qdev
Date: Mon, 2 Aug 2010 16:06:35 +0000

On Sun, Aug 1, 2010 at 1:42 PM, Hervé Poussineau <address@hidden> wrote:
> This series converts devices used by MIPS Magnum emulation to qdev devices.
> Once applied, Magnum emulation will be fully creatable by a configuration
> file (see attached file)
> usage:
> qemu-system-mips64el -M empty -nodefaults -readconfig magnum
> -netdev id=nic,type=user
> -drive id=disk,format=qcow2,if=none,file=1G.qcow2
> -drive id=cdrom,media=cdrom,format=raw,if=none,file=arccd.iso
> -chardev id=serial0,backend=vc
> -chardev id=serial1,backend=vc
> -chardev id=parallel0,backend=vc
> All feedback is very appreciated.

I appreciate very much your goal to make the devices qdevified.
However, the approach is not correct. Instead of adding 'iobase'
parameters and using cpu_register_physical_memory() in the device
code, you should just use sysbus_mmio_map() at board level. I also
don't see much need for a dedicated rc4030 bus. See for example
syborg.c for a mostly qdevified board.

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