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From: Blue Swirl <blauwirbel@gmail.com>
Date: Wed, 13 Oct 2010 19:45:19 +0000
Message-ID: <AANLkTikY54E9yBE3Cojt0xZN7MwUpf1Fgxg2EqdGzCvy@mail.gmail.com>
Subject: Re: [Qemu-devel] [PATCH] (master, stable-0.13) zaurus: workaround for
	io base address rounded down
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To: Juergen Lock <qemu-l@jelal.kn-bremen.de>
Cc: qemu-devel@nongnu.org

On Wed, Oct 13, 2010 at 7:12 PM, Juergen Lock <qemu-l@jelal.kn-bremen.de> w=
rote:
> The 2nd scoop's base address (0x08800040) now gets rounded down to
> start of page which causes its io read/write callbacks to be passed
> addresses 0x40 higher than the code expects: =C2=A0(as witnessed by
> "Bad register offset" messages and failure to attach the internal
> CF disk aka microdrive at least.)
>
> [There may be more bugs of this kind hiding in other targets, this
> =C2=A0was just the one I tested...]

The devices are passed an offset to base address. Perhaps the real
problem is that scoop_init registers too much MMIO: 0x1000, when the
real range should be only 0x28. Also the registers are in 4 byte
intervals and any access to address between the registers also
triggers a warning.

What were the messages exactly?