Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME

Rafael J. Wysocki
2013-12-20T22:18:56Z

On Friday, December 20, 2013 09:50:56 PM Matt Fleming wrote:
> On Fri, 20 Dec, at 01:43:38PM, H. Peter Anvin wrote:
> >
> > Possibly... will have to investigate. I would also ask if the same
> > applies to the PNP0B0x devices -- all we really need there is the
> > presence/absence indication and the I/O port base.
>
> It's worth noting that efi_late_init() exists solely because the ACPI
> infrastructure to find the BGRT table isn't available any earlier.
>
> If we could setup ACPI earlier that would be awesome.

I'm not sure 100%, but I *think* we need to do that with interrupts enabled.
At least after mm_init(), because it relies on things initialized there if I
remember correctly.

>From what I can tell at the moment, it might be possible to move it before
efi_enter_virtual_mode() if that would help.

Thanks,
Rafael