Re: [Xen-devel] Bug: Windows 2003 fails to install on xen-unstable tip

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxx] On Behalf Of Paul Durrant
> Sent: 29 April 2013 10:15
> To: Jan Beulich
> Cc: Tim (Xen.org); Keir (Xen.org); Ian Campbell; George Dunlap; Andrew
> Cooper; Eddie Dong; xen-devel@xxxxxxxxxxxxx; Suravee Suthikulpanit; Roger
> Pau Monne
> Subject: Re: [Xen-devel] Bug: Windows 2003 fails to install on xen-unstable
> tip
> 
> > -----Original Message-----
> [snip]
> > >
> > > IIRC Microsoft said that the table must be present for certification of
> > > Windows 8/Server 2012 but I can't remember whether they said that
> either
> > of
> > > the bits had to be set.
> >
> > Do you have any way of finding out? As you surely realize, the
> > easiest fix for the problems we're having would be to turn that
> > bit off (and of course we should also double check whether the
> > other bit being set doesn't have any bad implications).
> >
> 
> I'll have a dig and see what I can find out. May take a while though.
> 
>   Paul
> 

BTW, for the record, the spec for the other (PM timer) bit is:

"Indicates whether the ACPI PM timer has been enhanced not to require multiple 
reads. With this bit set, only one read of the ACPI PM timer is necessary to 
obtain a reliable value."

  Paul

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