linux-kernel - Re: [patch V2 02/37] x86/microcode: Hide the config knob

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Message-ID: <20230815082551.GAZNs2j/fUUOuahpx9@fat_crate.local>
Date:   Tue, 15 Aug 2023 10:25:51 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Josh Triplett <josh@...htriplett.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Ashok Raj <ashok.raj@...el.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Nikolay Borisov <nik.borisov@...e.com>
Subject: Re: [patch V2 02/37] x86/microcode: Hide the config knob

On Mon, Aug 14, 2023 at 04:57:30PM -0700, Josh Triplett wrote:
> Multiple reasons. First, because "a couple more KBs" (concretely, 4637
> bytes in this case) add up across the kernel.

Sure, if it were not really core. But this is core code. This is used on
practically every baremetal x86 machine out there. You have other core
code which is not used on virt either but that doesn't mean we'll axe it
off on virt with a Kconfig option just to save a couple of KBs.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette