linux-kernel - Re: [PATCH v4 5/5] x86/bugs: Add 'spectre

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Message-ID: <20240419214630.owsieyiyj5p432cy@treble>
Date: Fri, 19 Apr 2024 14:46:30 -0700
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Daniel Sneddon <daniel.sneddon@...ux.intel.com>,
	Pawan Gupta <pawan.kumar.gupta@...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>, Ingo Molnar <mingo@...nel.org>,
	Maksim Davydov <davydov-max@...dex-team.ru>
Subject: Re: [PATCH v4 5/5] x86/bugs: Add 'spectre_bhi=vmexit' cmdline option

On Fri, Apr 19, 2024 at 02:09:51PM -0700, Josh Poimboeuf wrote:
> In cloud environments it can be useful to *only* enable the vmexit
> mitigation and leave syscalls vulnerable.  Add that as an option.
> 
> This is similar to the old spectre_v2=auto option which was removed with

As Daniel pointed out this should be /v2/bhi/

-- 
Josh