From: Paolo Bonzini <pbonzini@redhat.com>
To: Gerhard Wiesinger <lists@wiesinger.com>
Cc: "qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] DOS boot problem with LSI 53C895A SCSI controller and LSI option ROM
Date: Tue, 13 Nov 2012 11:50:15 +0100 [thread overview]
Message-ID: <50A225E7.5000603@redhat.com> (raw)
In-Reply-To: <50A161D5.8080005@wiesinger.com>
Il 12/11/2012 21:53, Gerhard Wiesinger ha scritto:
> On 12.11.2012 09:26, Paolo Bonzini wrote:
>> Il 10/11/2012 22:39, Gerhard Wiesinger ha scritto:
>>> Hello,
>>>
>>> I bisected down a DOS boot problem with LSI 53C895A SCSI controller and
>>> LSI option ROM to the following commit:
>>> e93176d55f1eb4be1a366b51afeaf4f4c8c31d75
>> The emulation is known to be incomplete; the option ROM is not really
>> supported, just like the support for the LSI controller in SeaBIOS is
>> not meant for real hardware.
>
>
> The option ROM worked perfect for legacy before this commit for years.
>
>> But if this is a regression, I can look at it. Problem is, I don't have
>> the option ROM and I don't think I can obtain one legally. Please
>> provide at least a trace of the SCSI commands that are sent.
>
> Yes, it is a regression problem.
>
> You can download the option ROM from the LSI homepage:
> http://www.lsi.com/support/Pages/Download-Results.aspx?productcode=P00536&assettype=0&component=Storage%20Component&productfamily=0&productname=LSI53C895A
>
> http://www.lsi.com/downloads/Public/Host%20Bus%20Adapters/Host%20Bus%20Adapters%20Common%20Files/lsi_bios.zip
>
> http://www.lsi.com/downloads/Public/SCSI%20HBAs/SCSI%20HBAs%20Common%20Files/lsi_bios.zip
>
> http://www.lsi.com/downloads/Public/SCSI%20ICs%20and%20Expanders/SCSI%20ICs%20and%20Expanders%20Common%20Files/lsi_bios.zip
>
> http://www.lsi.com/downloads/Public/Obsolete/Obsolete%20Common%20Files/lsi_bios.zip
>
>
> Trace will follow (currently very busy). Best solution to turn it on?
To start with, use "#define DEBUG_SCSI" on hw/scsi-disk.c and "#define
DEBUG_LSI" in hw/lsi53c895a.c. Then rebuild.
(There are more tracing options in trace-events, but this one should be
enough in this case).
Paolo
prev parent reply other threads:[~2012-11-13 11:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-10 21:39 [Qemu-devel] DOS boot problem with LSI 53C895A SCSI controller and LSI option ROM Gerhard Wiesinger
2012-11-12 8:26 ` Paolo Bonzini
2012-11-12 20:53 ` Gerhard Wiesinger
2012-11-13 10:50 ` Paolo Bonzini [this message]
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