Messages in this thread | | | Subject | Re: [RFC PATCH 00/14] Support timezone of ACPI TAD and EFI TIME | From | joeyli <> | Date | Fri, 20 Dec 2013 12:05:57 +0800 |
| |
於 四,2013-12-19 於 06:59 -0800,H. Peter Anvin 提到: > On 12/18/2013 11:43 PM, Lee, Chun-Yi wrote: > > This patchset add the timezone support of ACPI TAD and EFI TIME, it > > also add codes for adjusting system time base on the timezone value > > from EFI TIME services when system boot. > > EFI time is something we used to support and ripped out, because it > doesn't work well, *at all*. > > I am hyper-skeptical to reintroducing them, and *definitely* will veto > reintroducing them on a system which has PNP0B0x devices present. > > -hpa >
Then that means the priority of PNP0B0x is higher then "CMOS RTC Not Present" flag. ACPI spec doesn't have clear definition on this.
I look forward to Borislav's "EFI runtime mapping" to fix the physical address accessing issue of EFI time service on x86_64 machines. I tested his patches on a issue machine and it works for walk around BIOS bug.
Can we use EFI time services on x86_64 after Borislav's patches accepted to mainline?
Thanks a lot! Joey Lee
-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |