於 三，2014-01-08 於 09:56 -0800，H. Peter Anvin 提到： [...] > > Document of Windows XP: > > > http://www.freelists.org/post/windows_errors/what-error-messages-really-mean-WinXP-IO-Ports-Blocked-from-Bios-AML-on-Windows-XP > > > > If just for ACPI TAD testing, we can remove the port protection > check of > > RTC ports in hwvalid.c. I have read 0x70/0x71 port success after > removed > > the checking in acpica/hwvalid.c. > > > > I will try to write RTC port in AML after remove acpica check, maybe > > have other unpredictable situation. > > > > Now *THERE* is a good use of the "no RTC bit". In the case that bit > is > set we should presumably remove these ports from the block list. Thanks for your suggestion, I will put a testing patch on this. > > Otherwise we should use the CMOS address space, not the I/O port > address > space. > > -hpa Unfortunately current acpica leaks the SystemCMOS handler: ACPI Error: Region SystemCMOS (ID=5) has no handler (20131115/exfldio-299) Regards Joey Lee -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
