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Date: Tue, 29 Jun 2010 23:14:24 +0200
From: Aurelien Jarno <aurelien@aurel32.net>
Subject: Re: [Qemu-devel] [PATCH v4 6/7] MIPS: Initial support of fulong
	mini pc (machine construction)
Message-ID: <20100629211424.GB3811@ohm.aurel32.net>
References: <1275734476-5223-1-git-send-email-zltjiangshi@gmail.com>
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To: chen huacai <zltjiangshi@gmail.com>
Cc: blauwirbel@gmail.com, yamahata@valinux.co.jp, qemu-devel@nongnu.org

On Mon, Jun 21, 2010 at 02:55:33PM +0800, chen huacai wrote:
> Loongson-specific instructions haven't implememted now. So, if want to
> boot a linux kernel, we should built a 32bit one and drop
> -march=loongson2e compiler flags. For simplification, please use the
> kernel patch (for 2.6.33) in the attachment and then use
> arch/mips/configs/fuloong2e_defconfig to compile a kernel. Besides,
> the disk image I used is debian-lenny built by you which is available
> at http://people.debian.org/~aurel32/qemu/mipsel/debian_lenny_mipsel_small.qcow2.
> 

It indeed works, however I still think there is a problem. 64-bit
kernels should also boot when dropping -march=loongson2e. Also after
adding the Loongson-specific integer instructions, I am able to boot a
32-bit kernel built with -march=loongson2e, but not a 64-bit kernel.

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net