Re: [RFC PATCH 04/14] ACPI: Add ACPI 5.0 Time and Alarm Devicedriver

[joeyli]

æ äï2014-01-06 æ 21:37 -0800ïH. Peter Anvin æåï
> On 01/06/2014 12:58 AM, joeyli wrote:
> > æ äï2013-12-31 æ 16:42 -0800ïH. Peter Anvin æåï
> >> On 12/19/2013 09:41 PM, joeyli wrote:
> >>>>
> >>>> What platform do you have that has TAD support?  I am wondering how this
> >>>> was tested.
> >>>>
> >>>
> >>> It's a testing platform that's only support get/set time functions of
> >>> ACPI TAD.
> >>>
> >>
> >> It would be really, really good to get this into Qemu (either SeaBIOS or
> >> OVMF, or ideally both) so we can have anyone test.
> >>
> >> 	-hpa
> > 
> > I will try to add to OVMF first.
> > 
> 
> For the record, I posted a patch to Qemu about a year ago to store the
> timezone in the CMOS, which might be useful for this implementation.  It
> was rejected because of no firmware support, so if you implement it for
> OVMF we can (update and) push this patch again.
> 
> 	-hpa
> 

Thanks for your patch. 

Due to accessing CMOS through ASL need enable SMM support in OVMF, I am
looking Laszlo's OVMF S3 patches:

https://www.mail-archive.com/edk2-devel@xxxxxxxxxxxxxxxxxxxxx/msg04969.html

Honestly I am not good on this area, I need to spend more time to
understand it.


Regards
Joey Lee

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