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Re: [Qemu-devel] [PATCH 2/6] A cumulative MIPS patchset

From: Stefan Weil
Subject: Re: [Qemu-devel] [PATCH 2/6] A cumulative MIPS patchset
Date: Tue, 28 Nov 2006 18:55:02 +0100
User-agent: IceDove (X11/20061123)

Hello Thiemo,

my reboot patch for MIPS
is only partially included in Daniel's patch.

As far as I know, a MIPS triggers the reboot exception at power-on.
(at least for MIPS 4KEc), so my patch uses the same code for reboot
exception and power-on.

Why do we need a special QEMU reset device in the Linux kernel?
QEMU might emulate existing real reset devices as well...


Thiemo Seufer schrieb:
> Hello All,
> the attached patch is an update of Daniel's reboot/halt
> implementation for the MIPS qemu.
> Thiemo
> ------------------------------------------------------------------------
> Date: Sat, 11 Nov 2006 20:02:40 -0500
> From: Daniel Jacobowitz <address@hidden>
> To: address@hidden
> Subject: [Qemu-devel] MIPS halt / reboot
> The MIPS kernel already has a reset/halt device for qemu
> (arch/mips/qemu/q-reset.c).  I have no idea at all where this came
> from, but hey, it seems sensible enough to me so I implemented it
> in qemu.
> This requires a bit of additional mucking around, since MIPS doesn't
> currently have any BIOS support, so I made the reset vector reload any
> specified kernel and initrd.  Works in my Debian rootfs; very handy for
> automated benchmarking.
> ------------------------------------------------------------------------
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