From: Marcelo Tosatti <mtosatti@redhat.com>
To: Roland Dreier <rdreier@cisco.com>
Cc: kvm-devel <kvm@vger.kernel.org>
Subject: Re: Fresh install of Windows XP hangs early in boot?
Date: Tue, 29 Jul 2008 22:14:21 -0300 [thread overview]
Message-ID: <20080730011421.GA23403@dmt.cnet> (raw)
In-Reply-To: <20080729225734.GA15606@dmt.cnet>
On Tue, Jul 29, 2008 at 07:57:34PM -0300, Marcelo Tosatti wrote:
> On Tue, Jul 29, 2008 at 03:00:06PM -0700, Roland Dreier wrote:
> > > Known problem:
> > > http://www.nabble.com/LSI:-avoid-infinite-loops-p17116605.html
> >
> > > Windows driver has scripts code which busy loops on main memory. Since
> > > that executes in vcpu context, the cpu won't ever get a chance to change
> > > the variable which the SCSI emulation is looping at.
> >
> > Thanks Marcelo (and Alberto) for pointing me at this.
> >
> > > The proposed hack, however, is half-assed (see Paul Brook's comments on
> > > that thread).
> >
> > I'd be willing to take a stab at a better fix.
>
> Awesome! That would be very welcome. It is quite important for
> better-than-IDE performance with Windows guests.
>
> > Is there any documentation about the lsi microcode engine anywhere?
>
> http://www.lsi.com/files/docs/techdocs/storage_stand_prod/SCSIControllers/56_3.pdf
http://www.lsi.com/files/docs/techdocs/storage_stand_prod/SCSIControllers/53c896_3.pdf
next prev parent reply other threads:[~2008-07-30 1:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <aday73k34zw.fsf@cisco.com>
2008-07-29 19:08 ` Fresh install of Windows XP hangs early in boot? Roland Dreier
2008-07-29 19:39 ` Roland Dreier
2008-07-29 21:02 ` Alberto Treviño
2008-07-29 21:23 ` Marcelo Tosatti
2008-07-29 22:00 ` Roland Dreier
2008-07-29 22:57 ` Marcelo Tosatti
2008-07-30 1:14 ` Marcelo Tosatti [this message]
2008-07-30 5:25 ` Roland Dreier
2008-07-30 3:27 ` Roland Dreier
2008-07-30 4:32 ` Alberto Treviño
2008-07-30 7:14 ` Chris Lalancette
2008-07-30 14:55 ` Roland Dreier
2008-07-30 15:13 ` Avi Kivity
2008-07-30 5:27 ` Roland Dreier
2008-07-31 19:34 ` Marcelo Tosatti
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