From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.7 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id 4F8F77D91B for ; Wed, 28 Aug 2019 12:29:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726820AbfH1M3Q (ORCPT ); Wed, 28 Aug 2019 08:29:16 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:51339 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726586AbfH1M3P (ORCPT ); Wed, 28 Aug 2019 08:29:15 -0400 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 05AD9825D9; Wed, 28 Aug 2019 14:28:59 +0200 (CEST) Date: Wed, 28 Aug 2019 14:29:13 +0200 From: Pavel Machek To: Borislav Petkov Cc: Pavel Machek , Thomas Gleixner , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Tom Lendacky , Andrew Cooper , Andrew Morton , Chen Yu , "H. Peter Anvin" , Ingo Molnar , Jonathan Corbet , Josh Poimboeuf , Juergen Gross , Kees Cook , "linux-doc@vger.kernel.org" , "linux-pm@vger.kernel.org" , Nathan Chancellor , Paolo Bonzini , "Rafael J. Wysocki" , "x86@kernel.org" Subject: Re: [PATCH 4.19 72/98] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h Message-ID: <20190828122913.GE8052@amd> References: <20190827072718.142728620@linuxfoundation.org> <20190827072722.020603090@linuxfoundation.org> <20190827113604.GB18218@amd> <20190828103113.GA14677@amd> <20190828114947.GC8052@amd> <20190828120024.GF4920@zn.tnic> <20190828120935.GD8052@amd> <20190828121628.GG4920@zn.tnic> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mR8QP4gmHujQHb1c" Content-Disposition: inline In-Reply-To: <20190828121628.GG4920@zn.tnic> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org --mR8QP4gmHujQHb1c Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed 2019-08-28 14:16:28, Borislav Petkov wrote: > On Wed, Aug 28, 2019 at 02:09:36PM +0200, Pavel Machek wrote: > > Yes, and now AMD has patch to break it on *all* machines. >=20 > It doesn't break all machines - you need to look at that patch again. This is not a way to have an inteligent conversation. The patch clearly breaks more machines than it has to. It is known to cause regression. You snipped the rest of the email with better ways to solve this. Best regards, Pavel --=20 DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany --mR8QP4gmHujQHb1c Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl1mc5kACgkQMOfwapXb+vIz7QCgqGdVM5QcSn7YV7viJnMiuqQs H2kAn3NoOi6AbQxnnAtd3nKdvRrtQcrx =Kb80 -----END PGP SIGNATURE----- --mR8QP4gmHujQHb1c--