On Tue, May 11, 2010 at 11:17:34AM -0700, Linus Torvalds wrote:
quoted text
> 
> 
> 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.

quoted text
> 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
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