RE: [PATCH] x86/hpet: Read HPET directly if panic in progress

[Luck, Tony]

>> Icelake and newer use CMCI with a UCNA signature.
>> 
>
> I have a question, does Intel use #MC to report UCNA errors?

No. They are reported with CMCI[1] (assuming it is enabled by IA32_MCi_CTL2 bit 30).

-Tony

[1] Usage evolved and naming did not keep up. An "Uncorrected" error is being signaled
using "Corrected Machine Check Interrupt".