From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com ([134.134.136.126]:35211 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933440AbeBMP4R (ORCPT ); Tue, 13 Feb 2018 10:56:17 -0500 Date: Tue, 13 Feb 2018 07:56:03 -0800 From: Andi Kleen To: Arjan van de Ven Cc: Greg Kroah-Hartman , Nick Lowe , linux-kernel@vger.kernel.org, stable@vger.kernel.org, David Woodhouse , Thomas Gleixner , Borislav Petkov , Dave Hansen , gnomes@lxorguk.ukuu.org.uk, ashok.raj@intel.com, karahmed@amazon.de, torvalds@linux-foundation.org, peterz@infradead.org, Borislav Petkov , pbonzini@redhat.com, tim.c.chen@linux.intel.com Subject: Re: [PATCH 4.9 43/92] x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown Message-ID: <20180213155603.GK10945@tassilo.jf.intel.com> References: <20180209133931.211869118@linuxfoundation.org> <20180209133934.259299920@linuxfoundation.org> <20180213150007.GJ26982@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: stable-owner@vger.kernel.org List-ID: On Tue, Feb 13, 2018 at 07:09:44AM -0800, Arjan van de Ven wrote: > > > > So, any hints on what you think should be the correct fix here? > > the patch sure looks correct to me, it now has a nice table for CPU IDs > including all of AMD (and soon hopefully the existing Intel ones that are not exposed to meltdown) I don't think the table is nice, it's a white list that would need to be maintained forever. -Andi