linux-kernel - Re: [PATCH 3/5] x86/microcode/intel: Allow a late-load only if a min rev is specified

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Message-ID: <YvpEbby2yp78Br9E@worktop.programming.kicks-ass.net>
Date:   Mon, 15 Aug 2022 15:04:45 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Ashok Raj <ashok.raj@...el.com>
Cc:     Borislav Petkov <bp@...en8.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tony Luck <tony.luck@...el.com>,
        Dave Hansen <dave.hansen@...el.com>,
        LKML Mailing List <linux-kernel@...r.kernel.org>,
        X86-kernel <x86@...nel.org>,
        Andy Lutomirski <luto@...capital.net>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [PATCH 3/5] x86/microcode/intel: Allow a late-load only if a min
 rev is specified

On Mon, Aug 15, 2022 at 12:41:06PM +0000, Ashok Raj wrote:

> OR
> 
> The release missed specifying a min-rev before release, accidently even
> though its actually removing a feature? That would be in the bug category.
> 
> Release should have validation tests to cover all known feature bits and
> such and check for any misses after an update as part of the qual process.

This; it would be very unfortunate if this ever happened.