From: Borislav Petkov <bp@alien8.de>
To: "Sironi, Filippo" <sironi@amazon.de>
Cc: Prarit Bhargava <prarit@redhat.com>,
"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"tony.luck@intel.com" <tony.luck@intel.com>,
"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: [v2] arch/x86: Fix boot_cpu_data.microcode version output
Date: Tue, 31 Jul 2018 15:00:03 +0200 [thread overview]
Message-ID: <20180731130003.GA22814@nazgul.tnic> (raw)
On Tue, Jul 31, 2018 at 11:46:09AM +0000, Sironi, Filippo wrote:
> There may be a chance of skipping this code, I think.
>
> If the microcode is loaded on the hyperthread sibling of the boot cpu
> before being loaded on the boot cpu, the boot cpu will exit earlier
> from apply_microcode_intel() - in if (rev >= mc->hdr.rev) { ... }.
>
> (This seems to be possible in apply_microcode_amd() as well.)
>
> In my tree with the aforementioned change - Intel only - I also had
> the following patch:
Yap, good catch.
next reply other threads:[~2018-07-31 13:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-31 13:00 Borislav Petkov [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-08-01 15:55 [v2] arch/x86: Fix boot_cpu_data.microcode version output Prarit Bhargava
2018-08-01 15:43 Borislav Petkov
2018-07-31 15:31 Filippo Sironi
2018-07-31 11:46 Filippo Sironi
2018-07-31 11:27 Prarit Bhargava
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