Re: [PATCH 1/3] rtc-efi: register rtc-efi device when EFI enabled

From: Matthew Garrett
Date: Fri Dec 28 2012 - 23:37:23 EST


On Fri, 2012-12-28 at 16:42 -0800, H. Peter Anvin wrote:
> On 12/28/2012 03:39 PM, Matthew Garrett wrote:
> > On Fri, 2012-12-28 at 15:32 -0800, H. Peter Anvin wrote:
> >> No, that is explicitly the ordering that is excludable.
> >
> > Windows uses the UEFI time functions. The fact that they fail for us on
> > a bunch of systems is just another symptom of our general failure to
> > accurately mimic Windows when making runtime calls, and we should just
> > make sure that that gets fixed rather than layering more workarounds on
> > top. It's an embarrassment that we're still unable to deal with
> > platforms that work fine with another OS.
> >
>
> Are they using them in preference to ACPI? This seems a bit odd, since
> one can presume that the ACPI functions were added at Microsoft's request...

In preference to the ACPI RTC, I haven't yet had an ACPI 5.0 TAD device
to test in comparison.
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