From: Borislav Petkov <bp@alien8.de>
To: Ashok Raj <ashok_raj@linux.intel.com>
Cc: "X86 ML" <x86@kernel.org>, "Andrew Cooper" <amc96@srcf.net>,
LKML <linux-kernel@vger.kernel.org>,
"Ștefan Talpalaru" <stefantalpalaru@yahoo.com>,
"Ashok Raj" <ashok.raj@intel.com>
Subject: Re: [PATCH] x86/microcode/AMD: Attempt applying on every logical thread
Date: Tue, 16 Aug 2022 14:41:39 +0200 [thread overview]
Message-ID: <YvuQgx698T5cgF+C@zn.tnic> (raw)
In-Reply-To: <YvtcGEHX8eSFpALX@araj-dh-work>
On Tue, Aug 16, 2022 at 09:00:14AM +0000, Ashok Raj wrote:
> A re-application means, you want to apply even if the cpu_rev <= patch.rev
Yes.
> if cpu_rev is > patch_rev, clearly its ahead?. say BIOS has a newer
> version than in the initrd image, do we want to replace the BIOS
> version since we do no revid checks here.
Can you even downgrade the microcode through the MSR?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2022-08-16 12:41 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-14 12:00 [PATCH] x86/microcode/AMD: Attempt applying on every logical thread Borislav Petkov
2022-08-16 9:00 ` Ashok Raj
2022-08-16 12:41 ` Borislav Petkov [this message]
2022-08-16 16:51 ` Ashok Raj
2022-08-17 12:12 ` Ashok Raj
2022-08-17 14:23 ` Borislav Petkov
2022-08-17 15:29 ` Ashok Raj
2022-08-17 18:13 ` Borislav Petkov
2022-08-17 20:58 ` Ashok Raj
2022-08-17 21:56 ` Borislav Petkov
2022-08-18 9:58 ` Ashok Raj
2022-11-05 3:45 ` Ashok Raj
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