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Re: [Xen-devel] [PATCH 1 of 6] Add an ACPI device exposing a package called ADDR, evaluating to two



Keir,

Do you want me to re-send that patch or will you fix it up?

  Paul

> -----Original Message-----
> From: Keir Fraser [mailto:keir.xen@xxxxxxxxx]
> Sent: 29 November 2011 09:20
> To: Ross Philipson; Paul Durrant; xen-devel@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-devel] [PATCH 1 of 6] Add an ACPI device exposing
> a package called ADDR, evaluating to two
> 
> On 29/11/2011 16:29, "Ross Philipson" <Ross.Philipson@xxxxxxxxxx>
> wrote:
> 
> >> I have no problem choosing a different _HID. I just don't have a
> good
> >> reference for what name is not going to clash with something
> else.
> >> Looks like ACPI0001 was a bad guess. Any better suggestions? What
> are
> >> the 'generic PNP device IDs'?
> >>
> >>   Paul
> >
> > Well I actually brought it up as a discussion point. I have the
> same
> > sort of issue - I have a generic device for a virtualized
> environment.
> > I don't really want it to be recognized as anything specific. I
> guess I see three options:
> >
> >  - Use an unassigned APCIXXXX string. I believe the _HID string
> values
> > of the form "ACPIXXXX" are defined by the ACPI specs themselves so
> > this may not work in the long run.
> >  - Use one of the predefined generic container EisaId PNP values.
> By
> > that I meant using EisaId(PNP0A05) or EisaId(PNP0A06). Looking at
> the
> > Linux generic container driver, it doesn't do very much with these
> > devices so that might be OK.
> 
> This option sounds reasonable. We have freedom to change it in
> future if it turns out to be a bad choice, not that I can see why it
> would be.
> 
>  -- Keir
> 
> >  - Acquire a vendor specific EisaId range for Xen (e.g.
> > EisaId(XENABCD)). Then we could carve up the product number part
> of the ID as we see fit.
> 


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