linux-kernel - Re: [PATCH 5/7] x86/bugs: Only harden syscalls when needed

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Message-ID: <20240412041724.gx6jtx7tpz2c7gbe@treble>
Date: Thu, 11 Apr 2024 21:17:24 -0700
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Daniel Sneddon <daniel.sneddon@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alexandre Chartre <alexandre.chartre@...cle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sean Christopherson <seanjc@...gle.com>,
	Andrew Cooper <andrew.cooper3@...rix.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Nikolay Borisov <nik.borisov@...e.com>,
	KP Singh <kpsingh@...nel.org>, Waiman Long <longman@...hat.com>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH 5/7] x86/bugs: Only harden syscalls when needed

On Thu, Apr 11, 2024 at 08:57:42PM -0700, Josh Poimboeuf wrote:
> For similar reasons I'm thinking we should also remove the non-eIBRS
> version (SPECTRE_V2_LFENCE).

Actually I guess that's still the default mitigation for AMD so I'll
leave that one in.

-- 
Josh