From: "Andreas Färber" <afaerber@suse.de>
To: Blue Swirl <blauwirbel@gmail.com>
Cc: Alexander Graf <agraf@suse.de>,
qemu-devel <qemu-devel@nongnu.org>, Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 1/2] m48t59: drop obsolete address base arithmetic
Date: Sun, 08 Jan 2012 03:48:21 +0100 [thread overview]
Message-ID: <4F0903F5.20809@suse.de> (raw)
In-Reply-To: <CAAu8pHtvz1zHkpugBXZGNv2hL49G0-ZpFuZgbGLWNeoQP9TZ6w@mail.gmail.com>
Am 07.01.2012 18:29, schrieb Blue Swirl:
> On Thu, Jan 5, 2012 at 17:45, Andreas Färber <afaerber@suse.de> wrote:
>> Am 15.10.2011 15:50, schrieb Blue Swirl:
>>> Remove now incorrect address base arithmetic, missed by
>>> 9936d6e42392f1440505dfa9df065eabd251cadf. Fixes Sparc64 boot.
>>
>> ...but breaks PReP boot:
>>
>> ERROR: BUG caught...
>> BIOS execution exception
>> nip=0x05800000 msr=0x00002000 dar=0x00000000 dsisr=0x00000000
>> Stopping execution
>>
>> I verified by checking out the preceding commit, applying a variation of
>> http://patchwork.ozlabs.org/patch/134519/ on top; that restored PReP
>> boot to what it used to look like.
>>
>> Any insights?
>
> Sparc64 problem was that the io_base did not match what was passed to
> the functions and then the calculation made the offset totally
> incorrect. Could you add printfs to see what is the offset?
info qtree:
dev: m48t59, id ""
dev-prop: size = 8192
dev-prop: type = 59
dev-prop: io_base = 0x74
irq 1
mmio ffffffffffffffff/0000000000002000
#define DEBUG_NVRAM:
NVRAM_writeb: 0x00000074 => 0x00000000
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000001
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000002
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000003
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000004
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000005
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000006
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000007
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000008
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x00000009
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000a
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000b
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000c
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000d
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000e
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
NVRAM_writeb: 0x00000074 => 0x0000000f
NVRAM_writeb: 0x00000075 => 0x00000000
NVRAM_readb: 0x00000077 <= 0xffffffff
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
next prev parent reply other threads:[~2012-01-08 2:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-15 13:50 [Qemu-devel] [PATCH 1/2] m48t59: drop obsolete address base arithmetic Blue Swirl
2012-01-05 17:45 ` Andreas Färber
2012-01-07 17:29 ` Blue Swirl
2012-01-08 2:48 ` Andreas Färber [this message]
2012-01-08 11:43 ` Blue Swirl
2012-01-08 12:16 ` Avi Kivity
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