Re: [Qemu-devel] Re: Windows 2000 SP4 (was Re: APM bug)

From: Hetz Ben Hamo <hetzbh@gmail.com>
To: qemu-devel@nongnu.org, lreiter@win4lin.com, dzo@simtreas.ru
Subject: Re: [Qemu-devel] Re: Windows 2000 SP4 (was Re: APM bug)
Date: Wed, 6 Apr 2005 01:48:42 +0200	[thread overview]
Message-ID: <41e41e7a0504051648624ed412@mail.gmail.com> (raw)
In-Reply-To: <4253192C.8070600@win4lin.com>

Thanks for the patch Leonardo...

Indeed, the patch seems to apply with some hunks (I suck at C
programming :), and fails to buid with qemu with a compile error on
the SPARC part of the emulation (Blue swirl, did you see the error?)

Does anyone else have a better solution other then patching and
unpatching QEMU to install and use Windows 2000?

Thanks,
Hetz

On Apr 6, 2005 1:03 AM, Leonardo E. Reiter <lreiter@win4lin.com> wrote:
> Yes, we did replace the IDE driver with our own implementation.  But you
> can apply this patch that was posted long ago on the list that takes
> care of it on regular QEMU.  It will slow things down a bit, so you may
> want to disable it, so you may want to optimize it or disable it after
> you get Windows 2000 installed, but it works.  The issue seems to be the
> fact that the install-time Windows 2000 IDE driver doesn't like write
> operations generating an interrupt too quickly (i.e. before the "out" or
> DMA transfer returns).  It doesn't seem to have this issue after the
> base OS is installed and booted however, but your experience may vary.
> Attached is the patch that we found on the list.  It applies both to
> 0.6.1 and 0.6.2, albeit with some possible hunks.
> 
> Best regards,
> 
> Leo Reiter
> 
> Hetz Ben Hamo wrote:
> > Hi Leonardo,
> >
> > I have tried to install win2k from various CD's I have here around and
> > I stumbled on one really weird thing..
> >
> > Disk space issues. I have tried with 1GB, 2GB and 4GB virtual disks,
> > and all of them seems to be quickly filled by the win2k installer and
> > then the install fails..
> >
> > Do you also have the same problem there at win4lin? or is it only
> > happening with QEMU's internal IDE drive emulation? (since I recall
> > that win4lin replaced the IDE driver with their own's one)..
> >
> > Thanks,
> > Hetz
> 
> --
> Leonardo E. Reiter
> Vice President of Engineering
> 
> Win4Lin, Inc.
> Virtual Computing from Desktop to Data Center
> Main: +1 512 339 7979
> Fax: +1 512 532 6501
> http://www.win4lin.com
> 
> 
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