Messages in this thread | | | Date | Fri, 20 Dec 2013 13:25:06 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME |
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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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