linux-kernel - [Part 2 v2[cleanup] 0/4] Some additional cleanups in microcode

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Message-Id: <20230121213512.251578-1-ashok.raj@intel.com>
Date:   Sat, 21 Jan 2023 13:35:08 -0800
From:   Ashok Raj <ashok.raj@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>
Cc:     Ashok Raj <ashok.raj@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Reinette Chatre <reinette.chatre@...el.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Stefan Talpalaru <stefantalpalaru@...oo.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Jonathan Corbet <corbet@....net>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Peter Zilstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Andrew Cooper <Andrew.Cooper3@...rix.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Martin Pohlack <mpohlack@...zon.de>
Subject: [Part 2 v2[cleanup] 0/4] Some additional cleanups in microcode

Hi Thomas and Boris,

This mini series is in response to Thomas's feedback here[1].

I hope this addresses all/most of your concerns you raised in this thread.

Sorry if I missed any, drop more hints and I'll fix them up.

Patch3 needs an AMD change as well. I wasn't confident looking at the
source that was returning the patchid vs reading fromt he real MSR. I'll
check with Boris to confirm before I submit this again.

[1] https://lore.kernel.org/lkml/87y1pygiyf.ffs@tglx/

Now that the other patches are now staged in tip/x86/microcode,
this series applies on top of that.

Cheers,
Ashok

Ashok Raj (4):
  x86/microcode: Taint kernel only if microcode loading was successful
  x86/microcode: Report invalid writes to reload sysfs file
  x86/microcode/intel: Fix collect_cpu_info() to reflect current
    microcode
  x86/microcode: Do not call apply_microde() on sibling threads

 arch/x86/kernel/cpu/microcode/core.c  | 28 ++++++++++++++-------------
 arch/x86/kernel/cpu/microcode/intel.c | 10 +++++++++-
 2 files changed, 24 insertions(+), 14 deletions(-)

Cc: LKML <linux-kernel@...r.kernel.org>
Cc: x86 <x86@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Tony Luck <tony.luck@...el.com>
Cc: Dave Hansen <dave.hansen@...el.com>
Cc: Alison Schofield <alison.schofield@...el.com>
Cc: Reinette Chatre <reinette.chatre@...el.com>
Cc: Thomas Gleixner (Intel) <tglx@...utronix.de>
Cc: Tom Lendacky <thomas.lendacky@....com>
Cc: Stefan Talpalaru <stefantalpalaru@...oo.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Jonathan Corbet <corbet@....net>
Cc: Rafael J. Wysocki <rafael@...nel.org>
Cc: Peter Zilstra (Intel) <peterz@...radead.org>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Andrew Cooper <Andrew.Cooper3@...rix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: Martin Pohlack <mpohlack@...zon.de>

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