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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-acpi@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [git pull request] ACPI patches for 2.6.34-rc6
Date: Tue, 11 May 2010 19:22:53 +0100	[thread overview]
Message-ID: <20100511182253.GB19264@srcf.ucam.org> (raw)
In-Reply-To: <alpine.LFD.2.00.1005111107020.3711@i5.linux-foundation.org>

On Tue, May 11, 2010 at 11:17:34AM -0700, Linus Torvalds wrote:
> 
> 
> On Tue, 11 May 2010, Matthew Garrett wrote:
> > 
> > I see Windows write the SCI_EN bit without reading it first and without 
> > calling the ACPI enable SMM function.
> 
> Hmm. So presumably Windows doesn't even do them bit-by-bit, but simply 
> does a "restore PM1 Control register value" on resume.

Yup.

> And I guess it probably does the same for the PM1_ENABLE register and the 
> PM2 control registers too?

Haven't checked those, but could do so easily enough.

(I say easily enough. Turns out that getting Windows to do S3 under qemu 
is a fair amount of work)
-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2010-05-11 18:23 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-07  2:22 [git pull request] ACPI patches for 2.6.34-rc6 Len Brown
2010-05-07  2:34 ` Linus Torvalds
2010-05-07  6:12   ` Matthew Garrett
2010-05-07 21:06     ` Linus Torvalds
2010-05-07 21:13       ` Matthew Garrett
2010-05-07 21:21         ` Linus Torvalds
2010-05-07 21:36           ` Matthew Garrett
2010-05-11 17:25             ` Matthew Garrett
2010-05-11 17:42               ` Linus Torvalds
2010-05-11 17:59                 ` Matthew Garrett
2010-05-11 18:17                   ` Linus Torvalds
2010-05-11 18:22                     ` Matthew Garrett [this message]
2010-05-07 22:39   ` Rafael J. Wysocki
2010-05-07 23:00     ` Linus Torvalds
2010-05-07 23:17       ` Rafael J. Wysocki
2010-05-07 23:21         ` Linus Torvalds
2010-05-08  0:03           ` Rafael J. Wysocki
2010-05-08  0:10             ` Linus Torvalds
2010-05-08  5:19               ` Len Brown

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