linux-kernel - Re: [PATCH -v3 0/15] x86: Remove support for TSC-less and CX8-less CPUs

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Message-Id: <690ad07b-fdd0-4808-9eb8-b8ffa7ec7001@app.fastmail.com>
Date: Mon, 15 Dec 2025 16:54:17 +0100
From: "Arnd Bergmann" <arnd@...nel.org>
To: "Ingo Molnar" <mingo@...nel.org>, linux-kernel@...r.kernel.org
Cc: "Ahmed S . Darwish" <darwi@...utronix.de>,
 "Andrew Cooper" <andrew.cooper3@...rix.com>,
 "Ard Biesheuvel" <ardb@...nel.org>, "Borislav Petkov" <bp@...en8.de>,
 "Dave Hansen" <dave.hansen@...ux.intel.com>,
 "H. Peter Anvin" <hpa@...or.com>, "John Ogness" <john.ogness@...utronix.de>,
 "Linus Torvalds" <torvalds@...ux-foundation.org>,
 "Peter Zijlstra" <peterz@...radead.org>,
 "Thomas Gleixner" <tglx@...utronix.de>
Subject: Re: [PATCH -v3 0/15] x86: Remove support for TSC-less and CX8-less CPUs

On Sun, Dec 14, 2025, at 09:46, Ingo Molnar wrote:
> Changes in -v3:
>
>  - Port to v6.19-rc1
>
> Changes in -v2:
>
>  - Rebase to v6.15-rc6 + the relevant x86 tree branch
>
>  - Use proper asm() constraints in the simplified CX8 methods (Uros Bizjak)
>
>  - Remove stray family-4 default (suggested by Arnd Bergmann)
>
>  - Simplify CX8 test (suggested by Uros Bizjak)
>
>  - Add review tags

Looks all good to me, thanks for rebasing!

I did a few patches on top of v1 to simplify the configuration
further when we discussed this earlier this year. I'll rebase
and submit them once you merge yours.

     Arnd