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

[Stefan Weil <weil@mail.berlios.de>]

Hello Thiemo,

my reboot patch for MIPS
(http://lists.gnu.org/archive/html/qemu-devel/2006-09/msg00082.html)
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...

Stefan

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 <drow@false.org>
> To: qemu-devel@nongnu.org
> 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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