linux-kernel - Re: [PATCH v11 00/12] AMD broadcast TLB invalidation

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Message-ID: <CA+i-1C3DRvustO9eH4PFyASD_SRoR4iv22BMfvu9BSKDK_SFLw@mail.gmail.com>
Date: Thu, 13 Feb 2025 19:31:01 +0100
From: Brendan Jackman <jackmanb@...gle.com>
To: Rik van Riel <riel@...riel.com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org, bp@...en8.de, 
	peterz@...radead.org, dave.hansen@...ux.intel.com, zhengqi.arch@...edance.com, 
	nadav.amit@...il.com, thomas.lendacky@....com, kernel-team@...a.com, 
	linux-mm@...ck.org, akpm@...ux-foundation.org, jannh@...gle.com, 
	mhklinux@...look.com, andrew.cooper3@...rix.com
Subject: Re: [PATCH v11 00/12] AMD broadcast TLB invalidation

On Thu, 13 Feb 2025 at 17:20, Rik van Riel <riel@...riel.com> wrote:
>
> Add support for broadcast TLB invalidation using AMD's INVLPGB instruction.

Oh - what if the user sets nopcid. We need to disable invlpgb in that
case right?

(I assume it could be made to work, but doesn't seem like a case worth
optimising).