linux-kernel - RE: [Xen-devel] [PATCH 1/2] Xen acpi pad implement

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Message-Id: <509786FF02000078000A6491@nat28.tlf.novell.com>
Date:	Mon, 05 Nov 2012 08:29:35 +0000
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Jinsong Liu" <jinsong.liu@...el.com>
Cc:	"xen-devel@...ts.xen.org" <xen-devel@...ts.xen.org>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@...cle.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Xen-devel] [PATCH 1/2] Xen acpi pad implement

>>> On 03.11.12 at 13:16, "Liu, Jinsong" <jinsong.liu@...el.com> wrote:
> Konrad Rzeszutek Wilk wrote:
>>>> From f514b97628945cfac00efb0d456f133d44754c9d Mon Sep 17 00:00:00
>>>> 2001 
>>> From: Liu, Jinsong <jinsong.liu@...el.com>
>>> Date: Thu, 1 Nov 2012 21:02:36 +0800
>>> Subject: [PATCH 1/2] Xen acpi pad implement
>>> 
>>> PAD is acpi Processor Aggregator Device which provides a control
>>> point 
>>> that enables the platform to perform specific processor configuration
>>> and control that applies to all processors in the platform.
>>> 
>>> This patch is to implement Xen acpi pad logic. When running under Xen
>>> virt platform, native pad driver would not work. Instead Xen pad
>>> driver, 
>>> a self-contained and very thin logic level, would take over acpi pad
>>> staff. When acpi pad notify OSPM, xen pad logic intercept and parse
>>> _PUR object 
>>> and then hypercall to hyervisor for the rest work, say, core parking.
>> 
>> Two comments:
>>  - Did you look at the SuSE tree? Jan mentioned that they did some
>>    fixes? Did you carry them over?
> 
> I didn't look at Suse tree.
> 
> Jan, would you please tell me where can I pull Suse tree?

http://kernel.opensuse.org/git

> have you 
> implemented xen-acpi-pad logic at Suse dom0 and which points you have fixed?

Yes, we've been carrying this for quite some time. I don't recall
the specific cleanups to the code I did, so I can only refer you
to the trees above.

Jan

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