From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by Galois.linutronix.de with esmtps (TLS1.2:RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1fDmkf-0005Ym-OH for speck@linutronix.de; Wed, 02 May 2018 10:04:38 +0200 Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fDmkd-00031t-1g for speck@linutronix.de; Wed, 02 May 2018 08:04:35 +0000 Date: Wed, 2 May 2018 10:04:32 +0200 From: Peter Zijlstra Subject: [MODERATED] Re: Updated L1TF native OS patch Message-ID: <20180502080432.GA12180@hirez.programming.kicks-ass.net> References: <20180501234247.GA41910@tassilo.jf.intel.com> <20180502000512.GO75137@tassilo.jf.intel.com> <20180502012112.GQ75137@tassilo.jf.intel.com> MIME-Version: 1.0 In-Reply-To: <20180502012112.GQ75137@tassilo.jf.intel.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit To: speck@linutronix.de List-ID: On Tue, May 01, 2018 at 06:21:12PM -0700, speck for Andi Kleen wrote: > Also attaching the unencrypted mbox for easier applying etc. I would've expected patch 1 to be two separate patches; one flipping the fields the other flipping the bits. That's just a wee bit easier to look at. And patch 4's X86_FEATURE_NO_L1TF_FIX is weird, we typically have positive flags for the fixes, see PTI, RETPOLINE and SPEC_STORE_BYPASS_DISABLE.