Re: [Xen-devel] [PATCH v2 26/41] arm : acpi add xen environment table

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Thu, 28 May 2015, Jan Beulich wrote:
> >>> On 28.05.15 at 12:58, <stefano.stabellini@xxxxxxxxxxxxx> wrote:
> > Let's take a closer look at this table. After the boilierplate, these
> > are the interesting fields:
> > 
> > GNT Start, GNT Size
> > Evtchn Intr, Evtchn Intr Flags
> > 
> > After the table, it is clearly stated:
> > 
> > "The Grant Table region is optional."
> > 
> > and
> > 
> > "The Event Channel Interrupt is optional."
> > 
> > So I think there is no problem: we don't want to pass any info in that
> > table? Sure, let's not pass any. We can still use it to flag the
> > presence of Xen on the platform.
> 
> Even more so a reason to use what base ACPI has, without any
> custom table.

Could you please make a concrete suggestion with table names and fields?

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