linux-kernel - Re: [PATCH 1/1] x86/mce/amd: Add PPIN support for AMD MCE

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Date:   Thu, 19 Mar 2020 22:56:07 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     "Huang2, Wei" <Wei.Huang2@....com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "Ghannam, Yazen" <Yazen.Ghannam@....com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>,
        "Koralahalli Channabasappa, Smita" 
        <Smita.KoralahalliChannabasappa@....com>
Subject: Re: [PATCH 1/1] x86/mce/amd: Add PPIN support for AMD MCE

On Thu, Mar 19, 2020 at 09:44:48PM +0000, Huang2, Wei wrote:
> It was from machine_check_poll() ==> mce_gather_info(), right around
> the invoke of identify_cpu() inside arch/x86/kernel/cpu/common.c file.

mcheck_cpu_init
|->__mcheck_cpu_init_generic
   |-> machine_check_poll
|->__mcheck_cpu_init_vendor

... and the vendor-specific init in __mcheck_cpu_init_vendor() happens
only *after* it. Oh well.

init_amd() it is then.

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette