linux-kernel - [PATCH 0/3] Patch series to address some limitations in OS microcode loading.

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Date:   Wed, 21 Feb 2018 08:49:41 -0800
From:   Ashok Raj <ashok.raj@...el.com>
To:     bp@...e.de
Cc:     Ashok Raj <ashok.raj@...el.com>, X86 ML <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        Andi Kleen <andi.kleen@...el.com>,
        Tom Lendacky <thomas.lendacky@....com>,
        Arjan Van De Ven <arjan.van.de.ven@...el.com>
Subject: [PATCH 0/3] Patch series to address some limitations in OS microcode loading.

The following set of patches address some limitations on microcode loading.

First patch avoids a redundant microcode load on sibling thread if
another HT sibling got updated.

Ashok Raj (3):
  x86/microcode/intel: Check microcode revision before updating sibling
    threads
  x86/microcode/intel: Perform a cache flush before ucode update.
  x86/microcode: Quiesce all threads before a microcode update.

 arch/x86/kernel/cpu/microcode/core.c  | 113 +++++++++++++++++++++++++++++-----
 arch/x86/kernel/cpu/microcode/intel.c |  19 +++++-
 2 files changed, 113 insertions(+), 19 deletions(-)

-- 
2.7.4