From nobody Sun Feb 8 21:47:33 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+52512+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+52512+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1577151427; cv=none; d=zohomail.com; s=zohoarc; b=PPwllm9TbfvSsof6HVgipWq7ATVhVCLA+evarixP6NM5+HZemxxz0LHT0FW9MGpR9xQjlH+U8XczHfhsIP4xYwrp7ZWAaziDkbJ6IXVEjOy+iqNOaa3+UyTXaeRs5zKBmxzwZDJeEXV9cxPtUIFiYImqCqQm5vPWeWyAArE6W+4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1577151427; h=Cc:Date:From:In-Reply-To:List-Id:List-Unsubscribe:Message-ID:Reply-To:References:Sender:Subject:To; bh=ckNSfolpXJbaqZNDv3GcfYUGDRI2+NKAjt/ZO81uGAo=; b=EsmlSsKfexv87ZQHa1oCsxNjsUxMgT9BXOGHdz5CLixeG1fio67zbLEiii98unlUGM+8ZD9AYi01Xwn1qZUR/9+2WfQKld1g7bRjcYd5Q/sU5Q2aXI6G4r4DuF98PvS2HeNkMwBxPvgYHXNJrh4UXVGjhMuKrFqr1VqbE5Rmkxo= 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+52512+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 157715142700433.763456121045124; Mon, 23 Dec 2019 17:37:07 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id HZCoYY1788612xvP2OJleVda; Mon, 23 Dec 2019 17:37:06 -0800 X-Received: from mga05.intel.com (mga05.intel.com []) by mx.groups.io with SMTP id smtpd.web09.334.1577151420986085921 for ; Mon, 23 Dec 2019 17:37:06 -0800 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Dec 2019 17:37:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,349,1571727600"; d="scan'208";a="249667589" X-Received: from shwdeopenpsi014.ccr.corp.intel.com ([10.239.9.8]) by fmsmga002.fm.intel.com with ESMTP; 23 Dec 2019 17:37:04 -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 v1 3/4] UefiCpuPkg: Add definitions for EDKII microcode patch HOB Date: Tue, 24 Dec 2019 09:36:55 +0800 Message-Id: <20191224013656.13404-4-hao.a.wu@intel.com> In-Reply-To: <20191224013656.13404-1-hao.a.wu@intel.com> References: <20191224013656.13404-1-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: kdQVtcUMQGcv0LcTOobuUuPsx1787277AA= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1577151426; bh=7ho3JUiXYkkJz9QeXRVSu3ySAVQ6PeUpxRoxjiQ0hsQ=; h=Cc:Date:From:Reply-To:Subject:To; b=T/FdWdLefT63HX7SxO05IBkmUvzmkl13wEEUcj5kaW6yvvNOqy8BqgnHBGCQjRM+yZF QV3wgryhvvk7euFa6qpl4tsMg8vNYIQmd/UtPu3kg3BTBZMYCUMN4U5woyuM3Jlt79I/H qPlov8V6ni/ZlgFopQh9axph33LBy/OQz+k= 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 applied 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 --- UefiCpuPkg/UefiCpuPkg.dec | 3 ++ UefiCpuPkg/Include/Guid/MicrocodePatchHob.h | 50 ++++++++++++++++++++ 2 files changed, 53 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..3667fc3786 --- /dev/null +++ b/UefiCpuPkg/Include/Guid/MicrocodePatchHob.h @@ -0,0 +1,50 @@ +/** @file + The microcode patch HOB is used to store the information of: + A. Base address and size of the loaded microcode patches data; + B. Applied microcode patch for each processor within system. + + Copyright (c) 2019, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BS= D License + which accompanies this distribution. The full text of the license may b= e found at + http://opensource.org/licenses/bsd-license.php. + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMP= LIED. + +**/ + +#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 ProcessorNumber; + // + // An array with 'ProcessorNumber' elements that stores the offset (with + // regard to 'MicrocodePatchAddress') of the applied microcode patch for= each + // processor. + // If no microcode patch is applied for certain processor, the relating + // element will be set to MAX_UINT64. + // + UINT64 DetectedPatchOffset[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 (#52512): https://edk2.groups.io/g/devel/message/52512 Mute This Topic: https://groups.io/mt/69242655/1787277 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-