Re: [PATCH 1/2] x86/microcode: Update late microcode in parallel
From: Raj, Ashok
Date: Mon Aug 26 2019 - 16:23:42 EST
Minor nit: Small commit log fixup below.
On Sat, Aug 24, 2019 at 10:53:00AM +0200, Borislav Petkov wrote:
> From: Ashok Raj <ashok.raj@xxxxxxxxx>
> Date: Thu, 22 Aug 2019 23:43:47 +0300
> Microcode update was changed to be serialized due to restrictions after
> Spectre days. Updating serially on a large multi-socket system can be
> painful since it is being done on one CPU at a time.
> Cloud customers have expressed discontent as services disappear for a
> prolonged time. The restriction is that only one core goes through the
s/one core/one thread of a core/
> update while other cores are quiesced.
s/cores/other thread(s) of the core
> Do the microcode update only on the first thread of each core while
> other siblings simply wait for this to complete.
> [ bp: Simplify, massage, cleanup comments. ]