From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D65AC27C41 for ; Wed, 16 Aug 2023 21:19:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346423AbjHPVSs (ORCPT ); Wed, 16 Aug 2023 17:18:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53008 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346478AbjHPVSp (ORCPT ); Wed, 16 Aug 2023 17:18:45 -0400 Received: from mail.alien8.de (mail.alien8.de [IPv6:2a01:4f9:3051:3f93::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D6F7128 for ; Wed, 16 Aug 2023 14:18:38 -0700 (PDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id CA7EA40E00F4; Wed, 16 Aug 2023 21:18:35 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id 3gBbn6fbKb8y; Wed, 16 Aug 2023 21:18:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1692220713; bh=a5C9F/eySwaMtmiEdx/5UwOJH+63iNr44P4PZinEpK0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=G9vhEPm2I1MTimtz3vHH3FH5TaIWXi9SPrbRtB8eDdEmSs/iTqCwA2FsllHSut5l5 CKodtmucZLLr0MSERtNAN20oi4d5EXwm3raoPx6TZoAbSMTkJtDXPnr2+JB02rvo74 oJVtNCrcogd0ggOob3AnH3WoYwMmZNulXK8EhXUVz0y2iICR0tgQod60BYoqebvDpn ICqFW5PPPO1rHWUDAtPFqL8EKh8HU6Rrhrtlb9saOd+s6IqHZAQG4RzpujDgPZBw1k gr00b4YYEI6ZRW2b3KZyb/Cky//mWZ/3a5Pedjq1AD5tSGkm9AHyjFVfU/byoz8Dky Geb0yfARkZEb80t2T9WYHXunzMieK+14SohX/N/Lpb+DemJ9w6yi/0MZjXoDXlzuJv AtfOEhe/sUgo4c7XoZCKuwihMmKSDZwnqYcuBra7MYLE2Fkzmpws++Wa6g97c17vZ+ Kb1X4ZyOri3DDmHjXjATBZwPAeTdUU1+GDPQ7jFx6I6CNhEpWK7FjAGdOx4f0nhUw1 wloRTesNwYppJeQA37dkyI/2BLEHJjJQybfKyvq6CaVaF6Ssc2MT+5TqLgokBt89/J 4ClqvJJD7u1JmHESrm42hms0fy+9M9bXeUqJkkl1mzJMiAMC7Y6LGNLw2WeOWZnozU LMwKZUb3yyFqtmU2wZjPcEQo= Received: from zn.tnic (pd9530d32.dip0.t-ipconnect.de [217.83.13.50]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 245A640E0197; Wed, 16 Aug 2023 21:18:28 +0000 (UTC) Date: Wed, 16 Aug 2023 23:18:21 +0200 From: Borislav Petkov To: Jim Mattson Cc: dave.hansen@intel.com, linux-kernel@vger.kernel.org, stable@kernel.org, x86@kernel.org Subject: Re: [PATCH 1/2] x86/microcode/AMD: Load late on both threads too Message-ID: <20230816211821.GUZN09HTGo+yQ2+jd7@fat_crate.local> References: <12a12721-239b-457e-1ff7-f98c02cb7abe@intel.com> <20230816201700.589822-1-jmattson@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20230816201700.589822-1-jmattson@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 16, 2023 at 01:17:00PM -0700, Jim Mattson wrote: > Is there any way to tell that a microcode patch has been loaded on > only one thread? Only the example you see in the bugzilla link above. > And what does this mean for SEV-SNP attestation? More specifically? The CPUID page or microcode revision? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette