Re: [PATCH v2 07/16] x86/mce/amd: Simplify DFR handler setup

Borislav Petkov
2024-04-30T13:48:18Z

On Mon, Apr 29, 2024 at 10:25:02AM -0400, Yazen Ghannam wrote:
> Yep, "MCA init cleanup" is another thing on my TODO list.

Right, so looking at the code, early_identify_cpu()/identify_boot_cpu()
could call a

mca_bsp_init()

or so which does the once, vendor-agnostic setup.

identify_cpu->mcheck_cpu_init()

already does both the BSP and AP per-CPU init.

With such a split, I think we'll have all the proper places to do setup
at the right time without hackery.

> The BSP still completely finishes init before the APs, correct?

Yes.

> I recall some effort to make CPU init more parallel, but I haven't
> been following it.

I think you mean parallel hotplug but that's for the APs only.

Thx.

--
Regards/Gruss,
Boris.