linux-kernel - Re: [PATCH 11/22] x86/srso: Slight simplification

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Message-ID: <20230824045515.GEZObisz++bg1CabRj@fat_crate.local>
Date:   Thu, 24 Aug 2023 06:55:15 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Babu Moger <babu.moger@....com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>, David.Kaplan@....com,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Nikolay Borisov <nik.borisov@...e.com>,
        gregkh@...uxfoundation.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 11/22] x86/srso: Slight simplification

On Sun, Aug 20, 2023 at 06:19:08PM -0700, Josh Poimboeuf wrote:
> Subject: Re: [PATCH 11/22] x86/srso: Slight simplification

Commit title needs a verb and a more descriptive title.

Strictly speaking, we should use the IBPB selected as the retbleed
mitigation for SRSO only when the SRSO microcode has been applied so
moving this inside the "has_microcode" branch makes sense.

But even if it is outside that branch, we will still say "no microcode"
so basically it boils down to the same thing.

But sure, ok, slight simplification. :)

-- 
Regards/Gruss,
    Boris.

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