Re: [Qemu-devel] [PATCH v2] esp: add Tekram DC-390 emulation (PC SCSI adapter)

["Hervé Poussineau" <hpoussin@reactos.org>]

Paolo Bonzini a écrit :
> Il 02/08/2012 10:37, Hervé Poussineau ha scritto:
>> Difference with AMD PCscsi is that DC-390 contains a EEPROM,
>> and that a romfile is available to add INT13 support.
>>
>> This has been successfully tested on:
>> - MS DOS 6.22 (using DC390 ASPI driver)
>> - MS Windows 98 SE (using DC390 driver)
>> - MS Windows NT 3.1 (using DC390 driver)
>> - MS Windows NT 4.0 (using DC390 driver)
>> - hard disk and cdrom boot
>>
>> Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
> 
> I can take this patch in the SCSI tree, but... do we really need two
> models, considering that the PCI id is the same and that (for the
> coolness factor of installing NT 3.1 onto an empty VM) we can just add
> ESP support to SeaBIOS?  Does the option ROM not work without the EEPROM?

No, the option ROM requires the EEPROM.

DC-390 also has a very broad support with (at least):
- SCO Unix 3.2/v4.x
- SCO OpenServer 5.0.x
- NetWare 3.11/3.12/SFT-III
- NetWare 4.00/4.01/4.02/4.1x
- OS/2 v2.0/2.1/2.11/WARP 3.0 & 4.0
- Windows NT 3.51/4.x
- Windows NT 3.1/3.5
- Windows 3.x & WFWG 3.x
- Windows 95 (OSR2) & Windows 98
where a driver is provided by Tekram, but the ones I tried require the 
EEPROM too.
I'm not sure you'll be able to find as much drivers for this card, which 
don't require the EEPROM (except the default driver on Windows 98 SE and 
NT 4.0)

> 
> (Regarding ESP support in SeaBIOS, I have an almost working patch;
> however, Windows XP setup fails at "Starting Windows" and I don't have
> any older images nor time to investigate... I attach both the QEMU and
> SeaBIOS changes, feel free to pick them up).

BTW, ack for your QEMU changes, if you want to put them in your tree...

Regards,

Hervé