linux-kernel - Re: [Xen-devel] [PATCH 1/2] RFC: Prepare PAD for native and xen platform

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Message-ID: <20120329180842.GA14789@phenom.dumpdata.com>
Date:	Thu, 29 Mar 2012 14:08:42 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	"Liu, Jinsong" <jinsong.liu@...el.com>
Cc:	"Brown, Len" <len.brown@...el.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"keir.xen@...il.com" <keir.xen@...il.com>,
	Jan Beulich <jbeulich@...e.com>,
	"Li, Shaohua" <shaohua.li@...el.com>,
	"lenb@...nel.org" <lenb@...nel.org>
Subject: Re: [Xen-devel] [PATCH 1/2] RFC: Prepare PAD for native and	xen
 platform

> >> If it benefits other architectures (say ARM) then adding in hooks
> >> there (in osl for example) makes sense - but I am not sure if ARM
> >> has a form of _PUR code/calls it needs to do.
> >> 
> >> So with that in mind, neither of those options seems proper - as all
> >> of them depend on changing something in drivers/acpi/*.
> >> 
> >> I've one or two suggestions of what could be done to still make this
> >> work, but I need you to first see what happens if the native acpi_pad
> >> runs under Xen with the latest upstream code (along with three
> >> patches that are in a BZ I pointed you too).
> > 
> > Do you mean test the patch
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blobdiff;f=arch/x86/xen/enlighten.c;h=b132ade26f778f2cfec7c2d5c7b6db48afe424d5;hp=4172af8ceeb363d06912af15bf89e8508752b794;hb=d4c6fa73fe984e504d52f3d6bba291fd76fe49f7;hpb=aab008db8063364dc3c8ccf4981c21124866b395

Right.
> > ?  
> 
> Ah, you want to test https://bugzilla.redhat.com/show_bug.cgi?id=804347

No. That is a fix on that is required to boot v3.4-rc0 - if you are using
that version.

> Anyway, I didn't have proper h/w platform, but seems the bug (ioapic) is irrelated to pad thread we are talking?

Correct (it is irrelevant).
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