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 8DC54C27C4F for ; Wed, 16 Aug 2023 21:24:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346483AbjHPVYQ (ORCPT ); Wed, 16 Aug 2023 17:24:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51470 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346528AbjHPVYG (ORCPT ); Wed, 16 Aug 2023 17:24:06 -0400 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECF061BE8 for ; Wed, 16 Aug 2023 14:24:05 -0700 (PDT) Received: by mail-ed1-x536.google.com with SMTP id 4fb4d7f45d1cf-51e24210395so4471a12.0 for ; Wed, 16 Aug 2023 14:24:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1692221044; x=1692825844; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=PrksPXxxVccpYhmqxs/ARoxxpjrPkTuyFxc/g90sybA=; b=qAOngEMtao9z5SqEYvuvXl7MLkC/6byCdPHHV9QFr67CmXSn4wTPrRFjsxKGt3Hh5C y1xm4i9a1Sd05ylIxA6zUUf+wbJd3lhaEFfdE10TnFPNbQ+qsTsJFc1+HNawIVTeIHTX OoTRgKf5x+2hpSEsnLGOw0tso+/DRtcrURRQJ6Rj6JNWot9X/WfcS1L4pY2GANbLLL6x F1HaJqUelJQMA+b2HI/tPE7NCmU9+v5hsQ+L6tPDtBqrXEwWdtK+/UqPOaSO2DFYSKjj fM/RCs7lulq5Vu4wXs9UKsZUZu9lLllwzgiv732U4lrPGXa34dzThGR2i21v/QAhQ62G DJkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692221044; x=1692825844; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=PrksPXxxVccpYhmqxs/ARoxxpjrPkTuyFxc/g90sybA=; b=JdlirDvL/7F9s5iouRcoYpa0GfQbzflwakXXb4oxNniVKEHkNMJajhWeG71DfHMVHY jNEy5tRZLTc6e7wgKwOGzk3/N7rERRO6+bG81gJmJZHXYDgT2F7C0SzzlFU9ODTjUR7C zhcIfYzRW0eC8oJ2MsRTTaohwuzNs6I30rWwZ4IwhCfqeHlE7dsqfJddS327cKehY92t eE9Ufw8oR4dwkftPooxVRb3ELHB2s0Hpr/NuLNXP/Db7mWmkSuMajvxpkXvJDOYHElX6 A0SJvDB9RwRiHkFP/pdPiuTyIV4/ovROYvO2fK1jiEg9oj0qgbQZlM3bEuZXT4IZooEq JVfA== X-Gm-Message-State: AOJu0Yy3BsRuKD2MQjLboND13KnuohxpH12rUZX+mNyLrp7QJ3sJI8+e xkxkBOQCya5PX/HHL+KOwZozMFQop/R+TUHtcitOLk9jWlOsQI6+0J83Yg== X-Google-Smtp-Source: AGHT+IH637pKau+sIWos2Ut7fFx9UJcGN+E77ZOWXtcebK3HSDW27vDv3lfjylRKaqkIu6sx8kBVSYjCiErq1hFz5jA= X-Received: by 2002:a50:d781:0:b0:51e:16c5:2004 with SMTP id w1-20020a50d781000000b0051e16c52004mr34190edi.6.1692221044277; Wed, 16 Aug 2023 14:24:04 -0700 (PDT) MIME-Version: 1.0 References: <12a12721-239b-457e-1ff7-f98c02cb7abe@intel.com> <20230816201700.589822-1-jmattson@google.com> <20230816211821.GUZN09HTGo+yQ2+jd7@fat_crate.local> In-Reply-To: <20230816211821.GUZN09HTGo+yQ2+jd7@fat_crate.local> From: Jim Mattson Date: Wed, 16 Aug 2023 14:23:52 -0700 Message-ID: Subject: Re: [PATCH 1/2] x86/microcode/AMD: Load late on both threads too To: Borislav Petkov Cc: dave.hansen@intel.com, linux-kernel@vger.kernel.org, stable@kernel.org, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 16, 2023 at 2:18=E2=80=AFPM Borislav Petkov wrot= e: > > 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? Specifically, "Security Version Numbers (SVNs) of the currently executing platform firmware and microcode." > -- > Regards/Gruss, > Boris. > > https://people.kernel.org/tglx/notes-about-netiquette