From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tobias Geerinckx-Rice Subject: Re: Meltdown / Spectre Date: Mon, 8 Jan 2018 23:01:20 +0100 Message-ID: <11d287d5-48d0-c0c6-b788-be1a5396d884@tobias.gr> References: <874lnzcedp.fsf@gmail.com> <20180106174358.GA28436@jasmine.lan> <87lghapeu5.fsf@gmail.com> <87incc6z9o.fsf@gmail.com> <87fu7g436e.fsf@fastmail.com> <807794bd-5262-8b36-1f9f-dd3a316928ff@tobias.gr> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JvKx2UkAjWH5ELT8hQwoYuXXz54WQyACE" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:54962) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eYfRA-0000DF-4x for guix-devel@gnu.org; Mon, 08 Jan 2018 16:58:32 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eYfR9-00017Y-6p for guix-devel@gnu.org; Mon, 08 Jan 2018 16:58:32 -0500 Received: from tobias.gr ([2001:470:cc92::1]:60192) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eYfR8-00015n-LD for guix-devel@gnu.org; Mon, 08 Jan 2018 16:58:31 -0500 In-Reply-To: <807794bd-5262-8b36-1f9f-dd3a316928ff@tobias.gr> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: mbakke@fastmail.com, cox.katherine.e@gmail.com, cmmarusich@gmail.com Cc: development@libreboot.org, guix-devel@gnu.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --JvKx2UkAjWH5ELT8hQwoYuXXz54WQyACE Content-Type: multipart/mixed; boundary="3hsrDViWiK0d3O67A3L0GgspTYbwS2qwv"; protected-headers="v1" From: Tobias Geerinckx-Rice To: mbakke@fastmail.com, cox.katherine.e@gmail.com, cmmarusich@gmail.com Cc: development@libreboot.org, guix-devel@gnu.org Message-ID: <11d287d5-48d0-c0c6-b788-be1a5396d884@tobias.gr> Subject: Re: Meltdown / Spectre References: <874lnzcedp.fsf@gmail.com> <20180106174358.GA28436@jasmine.lan> <87lghapeu5.fsf@gmail.com> <87incc6z9o.fsf@gmail.com> <87fu7g436e.fsf@fastmail.com> <807794bd-5262-8b36-1f9f-dd3a316928ff@tobias.gr> In-Reply-To: <807794bd-5262-8b36-1f9f-dd3a316928ff@tobias.gr> --3hsrDViWiK0d3O67A3L0GgspTYbwS2qwv Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable I should probably have written what I thought: Tobias Geerinckx-Rice wrote on 08/01/18 at 22:51: > AIUI, at least on x86 CPUs, the microcode *is* a large and/or functiona= l > part of the processor... =2E..but it's initially included in ROM. Only when bugs are found in that= copy does a user-provided =E2=80=98update=E2=80=99 (at every boot) become= needed. Kind regards, T G-R --3hsrDViWiK0d3O67A3L0GgspTYbwS2qwv-- --JvKx2UkAjWH5ELT8hQwoYuXXz54WQyACE Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iIMEARYKACsWIQT12iAyS4c9C3o4dnINsP+IT1VteQUCWlPqMA0cbWVAdG9iaWFz LmdyAAoJEA2w/4hPVW15VkUBAMwO8anWt5ne9Nt32WxzE+eJtrdw4xjIbcHHZtzd I58UAQDbGatiTbeK92Tae9Sk5KlYr87OGw5/YHXVezSEC9yiBQ== =C+SU -----END PGP SIGNATURE----- --JvKx2UkAjWH5ELT8hQwoYuXXz54WQyACE--