From nobody Mon Feb 9 01:20:23 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.12 as permitted sender) client-ip=66.175.222.12; envelope-from=bounce+27952+52616+1787277+3901457@groups.io; helo=web01.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.12 as permitted sender) smtp.mailfrom=bounce+27952+52616+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1577753363; cv=none; d=zohomail.com; s=zohoarc; b=FsUKJftD42ah0eNn7jil5FlrRYFErI5zV9CV1yzX8zV2mFyGuN2kSUPWNP7ies2P1dNKoNJjgK1iVjvYr6vQzjZ1VRyg0raUX6uD+Jdi6pYVglKwvB1pRqiBdlAubcCLztNMXkwnCcEij8hTiKVqsuqkd4DyRAbY5ec4ueKIKeM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1577753363; h=Cc:Date:From:In-Reply-To:List-Id:List-Unsubscribe:Message-ID:Reply-To:References:Sender:Subject:To; bh=7P+R52zBIyh7stmFmflgDKUMo+yGiThmHKCPJzjqmDE=; b=B6dpicgBYyFLX9KNli2p+PbZwNaorQF7LhU91YtSTFKKjTPYbdUznNBf6TeUoRZX9Aak59jubfbrlb8j1CzndYQQLzMUad0kAnDmwF5GPg5etpYUvGt+KCxmeRz+lAbei0Ws/QaFOLWX4wcD4NKKKAAOnXTCZoKrnrlu8+/AOdA= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.12 as permitted sender) smtp.mailfrom=bounce+27952+52616+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) header.from= Received: from web01.groups.io (web01.groups.io [66.175.222.12]) by mx.zohomail.com with SMTPS id 1577753363427502.9415301238855; Mon, 30 Dec 2019 16:49:23 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id PjYwYY1788612x5Muf3LfHYD; Mon, 30 Dec 2019 16:49:23 -0800 X-Received: from mga09.intel.com (mga09.intel.com []) by mx.groups.io with SMTP id smtpd.web09.2417.1577753357960224652 for ; Mon, 30 Dec 2019 16:49:22 -0800 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Dec 2019 16:49:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,377,1571727600"; d="scan'208";a="221273758" X-Received: from shwdeopenpsi014.ccr.corp.intel.com ([10.239.9.8]) by orsmga003.jf.intel.com with ESMTP; 30 Dec 2019 16:49:20 -0800 From: "Wu, Hao A" To: devel@edk2.groups.io Cc: Hao A Wu , Eric Dong , Ray Ni , Laszlo Ersek , Star Zeng , Siyuan Fu , Michael D Kinney Subject: [edk2-devel] [PATCH v5 3/6] UefiCpuPkg: Add definitions for EDKII microcode patch HOB Date: Tue, 31 Dec 2019 08:49:11 +0800 Message-Id: <20191231004914.8520-4-hao.a.wu@intel.com> In-Reply-To: <20191231004914.8520-1-hao.a.wu@intel.com> References: <20191231004914.8520-1-hao.a.wu@intel.com> Precedence: Bulk List-Unsubscribe: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,hao.a.wu@intel.com X-Gm-Message-State: QEORZvrmfUvFRlEGXmL50yvcx1787277AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1577753363; bh=ju8AQempvakOPYnkbvb2+qGQjrWmy5UStxwsrnyVFVI=; h=Cc:Date:From:Reply-To:Subject:To; b=WMyanVB/jj7/hOgh99AW//lIQDMy4Uhu45kZjlbfEj4wHjKdjEUtThS7OYJy7Qwr9Tx +ofTPjGFf7pOB0+shoHV9SFh6SqLV2Vc1NJ6ceGlcFUOhKRyWnbTQA1TFwvQrpYfS2EUC nT343jttgiPT5ANWgSC2Mj1devzsfqCd2fQ= X-ZohoMail-DKIM: pass (identity @groups.io) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3D2430 This commit will add the definitions for EDKII microcode patch HOB. The intention of adding this HOB is to provide a scheme to store the below information: A. The base address and size of the microcode patches that are being loaded (from flash) into memory; B. The information of detected microcode patch for each processor within the system. The producer of the HOB will be the UefiCpuPkg/MpInitLib (where the load, detect and apply of the microcode happen). The consumer of the HOB can be modules that want to detect/apply the microcode patch by themselves again later during the boot flow. Cc: Eric Dong Cc: Ray Ni Cc: Laszlo Ersek Cc: Star Zeng Cc: Siyuan Fu Cc: Michael D Kinney Signed-off-by: Hao A Wu Reviewed-by: Ray Ni Reviewed-by: Eric Dong --- UefiCpuPkg/UefiCpuPkg.dec | 3 ++ UefiCpuPkg/Include/Guid/MicrocodePatchHob.h | 44 ++++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index 797f948631..45b267ac61 100644 --- a/UefiCpuPkg/UefiCpuPkg.dec +++ b/UefiCpuPkg/UefiCpuPkg.dec @@ -63,6 +63,9 @@ [Guids] ## Include/Guid/CpuFeaturesInitDone.h gEdkiiCpuFeaturesInitDoneGuid =3D { 0xc77c3a41, 0x61ab, 0x4143, { 0x98,= 0x3e, 0x33, 0x39, 0x28, 0x6, 0x28, 0xe5 }} =20 + ## Include/Guid/MicrocodePatchHob.h + gEdkiiMicrocodePatchHobGuid =3D { 0xd178f11d, 0x8716, 0x418e, { 0xa1,= 0x31, 0x96, 0x7d, 0x2a, 0xc4, 0x28, 0x43 }} + [Protocols] ## Include/Protocol/SmmCpuService.h gEfiSmmCpuServiceProtocolGuid =3D { 0x1d202cab, 0xc8ab, 0x4d5c, { 0x94,= 0xf7, 0x3c, 0xfc, 0xc0, 0xd3, 0xd3, 0x35 }} diff --git a/UefiCpuPkg/Include/Guid/MicrocodePatchHob.h b/UefiCpuPkg/Inclu= de/Guid/MicrocodePatchHob.h new file mode 100644 index 0000000000..2d307fbffb --- /dev/null +++ b/UefiCpuPkg/Include/Guid/MicrocodePatchHob.h @@ -0,0 +1,44 @@ +/** @file + The microcode patch HOB is used to store the information of: + A. Base address and size of the loaded microcode patches data; + B. Detected microcode patch for each processor within system. + + Copyright (c) 2019, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef _MICROCODE_PATCH_HOB_H_ +#define _MICROCODE_PATCH_HOB_H_ + +extern EFI_GUID gEdkiiMicrocodePatchHobGuid; + +// +// The EDKII microcode patch HOB will be produced by MpInitLib and it can = be +// consumed by modules that want to detect/apply microcode patches. +// +typedef struct { + // + // The base address of the microcode patches data after being loaded into + // memory. + // + UINT64 MicrocodePatchAddress; + // + // The total size of the loaded microcode patches. + // + UINT64 MicrocodePatchRegionSize; + // + // The number of processors within the system. + // + UINT32 ProcessorCount; + // + // An array with 'ProcessorCount' elements that stores the offset (with + // regard to 'MicrocodePatchAddress') of the detected microcode patch + // (including the CPU_MICROCODE_HEADER data structure) for each processo= r. + // If no microcode patch is detected for certain processor, the relating + // element will be set to MAX_UINT64. + // + UINT64 ProcessorSpecificPatchOffset[0]; +} EDKII_MICROCODE_PATCH_HOB; + +#endif --=20 2.12.0.windows.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#52616): https://edk2.groups.io/g/devel/message/52616 Mute This Topic: https://groups.io/mt/69341885/1787277 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [importer@patchew.org] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-