Re: [patch]: ACPI: Add the Pansonic CF51 box to the dmi check table

[Matthew Garrett <mjg59@srcf.ucam.org>]

On Thu, Mar 19, 2009 at 10:42:02AM +0800, yakui_zhao wrote:
> On Thu, 2009-03-19 at 09:21 +0800, Matthew Garrett wrote:
> > Yes. So how do we tell which ordering a machine needs without having a 
> > blacklist? Windows doesn't. 
> 
> If there exists the different behaviour w/o the boot option, maybe it
> should be added to the blacklist. 
>
> Maybe there is no such blacklist on windows.

Quite. There shouldn't be on Linux.
 
> I verify this problem on windows by using KVM and find that the _PTS
> object is called after device suspend in course of hibernate.(No S3 is
> supported on KVM). In theory the _PTS is also called after device
> suspend in course of suspend.

What would it take to fake S3 on KVM enough that we could instrument 
Windows' behaviour?

> But it is strange that suspend/resume can work well on windows XP. 
> Maybe more registers are saved/restored in course of suspend. But we
> can't know what should be saved/restored.

Nor can we continue adding machines to a blacklist.

-- 
Matthew Garrett | mjg59@srcf.ucam.org
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