linux-kernel - Re: [PATCH] x86/purgatory: provide config to disable purgatory

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Message-ID: <YZ0HkaOiKfmgN8zl@zn.tnic>
Date:   Tue, 23 Nov 2021 16:24:01 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Usama Arif <usama.arif@...edance.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org, vgoyal@...hat.com,
        tglx@...utronix.de, fam.zheng@...edance.com
Subject: Re: [PATCH] x86/purgatory: provide config to disable purgatory

On Tue, Nov 23, 2021 at 03:05:08PM +0000, Usama Arif wrote:
> This can help in reducing boot time if purgatory is not needed
> as the sha256 digest of kexec segments is no longer calculated
> or verified if the config is disabled.

I'd prefer a commit message to say:

"Disable purgatory because of real-life use case X. With it disabled,
booting a second kernel is sped up by Y."

"Just because" and adding yet another config option is not worth the
effort, otherwise.

Thx.

-- 
Regards/Gruss,
    Boris.

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