On 12/20/2013 01:10 PM, H. Peter Anvin wrote:
> On 12/19/2013 09:38 PM, joeyli wrote:
>>
>> If don't use EFI time, then the first priority is using ACPI TAD if it
>> present. Due to ACPI TAD is a generic acpi device that's need OS parsing
>> DSDT table before set system time.
>>
>> Either move DSDT parser from subsystem initial stage to start_kernel or
>> move timekeeping initial to after DSDT be parsed. Which one you think is
>> more possible and risk less? Then I will try that way.
>>
>
> I discussed the DSDT/SSDT parsing issue with Rafael and he claims it
> would require a lot of restructuring. Unfortunately ACPI is at this
> point done rather late, as I understand. All of this is a big problem.
>
The thing is that we probably need this anyway, because that is how one
detects PNP0B0x devices as well. We do need to get away from blindly
poking ports 0x70-73.
-hpa
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