From nobody Sun Feb 8 13:53:31 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+88095+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+88095+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1648454963; cv=none; d=zohomail.com; s=zohoarc; b=XkCFDlKRHF8jwaUaNx3Q+4e999FqZjbYttVm43xxl/Jh84S6aqVElgh6Zc0kyPcghoui9lWPyl29C3lHlagDmiM3EXDuh0giDnQqdrtqeca65VA0cV/tlJ0PdfZrftK2xw0M2AJPiUvsU56dMmY8l9OBkSnpj1JK2/YcklprKec= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1648454963; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=D+C3qQYvDRBBtRzXwQLAnGHZJ15fUsyOP8SbwDXgcYE=; b=R3kIspoES5AMic9ZR/hCDquN5Epjmnxk1gtoZYKZmeE4KLm+bju6QFqexQEo4UCmiv94foW0zI+98F5rMkjFcVF1cGJn5LEAegozstlfPEbJHyoX7t/U8xUmTZh/G93gJqdhNopAVQRZjrqboSRhSq87hN+HEksBZc2i08Nu/ZY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+88095+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 164845496359478.93131587305561; Mon, 28 Mar 2022 01:09:23 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id F40JYY1788612xioUDUcvIaK; Mon, 28 Mar 2022 01:09:23 -0700 X-Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by mx.groups.io with SMTP id smtpd.web12.8480.1648454962517853012 for ; Mon, 28 Mar 2022 01:09:22 -0700 X-IronPort-AV: E=McAfee;i="6200,9189,10299"; a="257770665" X-IronPort-AV: E=Sophos;i="5.90,216,1643702400"; d="scan'208";a="257770665" X-Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2022 01:08:55 -0700 X-IronPort-AV: E=Sophos;i="5.90,216,1643702400"; d="scan'208";a="563426732" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.249.175.167]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2022 01:08:52 -0700 From: "Min Xu" To: devel@edk2.groups.io Cc: Min Xu , Brijesh Singh , Erdem Aktas , James Bottomley , Jiewen Yao , Tom Lendacky , Eric Dong , Ray Ni , Rahul Kumar , Gerd Hoffmann Subject: [edk2-devel] [PATCH V11 05/47] UefiCpuPkg: Extend VmgExitLibNull to handle #VE exception Date: Mon, 28 Mar 2022 16:07:44 +0800 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: 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,min.m.xu@intel.com X-Gm-Message-State: UPJ2CdEZ3dLpgX3S3SKdvV1ux1787277AA= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1648454963; bh=DmRmvXlDCni8WbqK/b9FKrQUsTF5IXOa/s3uClErOyw=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=puHamZPQNcHIi4of8uxTF8t1H/33GwSEu0zNV7QQ48uDwfXuqwuGHF7dHgHrZTpEIiP RiKhXYvNpv5Fw8IIu0+cbp/7NZMhzNoaiRjG33ugtXhSmEVqWUSDkAiig4xBp4aiWgk8N KApiLvhqgsa4ng5duRGw/KKtW0AfxJp39gY= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1648454965297100003 RFC=EF=BC=9A https://bugzilla.tianocore.org/show_bug.cgi?id=3D3429 VmgExitLib performs the necessary processing to handle a #VC exception. VmgExitLibNull is a NULL instance of VmgExitLib which provides a default limited interface. In this commit VmgExitLibNull is extended to handle a #VE exception with a default limited interface. A full feature version of #VE handler will be created later. Cc: Brijesh Singh Cc: Erdem Aktas Cc: James Bottomley Cc: Jiewen Yao Cc: Tom Lendacky Cc: Eric Dong Cc: Ray Ni Cc: Rahul Kumar Cc: Gerd Hoffmann Acked-by: Gerd Hoffmann Reviewed-by: Ray Ni Signed-off-by: Min Xu --- UefiCpuPkg/Include/Library/VmgExitLib.h | 28 ++++++++++++++ .../Library/VmgExitLibNull/VmTdExitNull.c | 38 +++++++++++++++++++ .../Library/VmgExitLibNull/VmgExitLibNull.inf | 1 + 3 files changed, 67 insertions(+) create mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c diff --git a/UefiCpuPkg/Include/Library/VmgExitLib.h b/UefiCpuPkg/Include/L= ibrary/VmgExitLib.h index ebda1c3d907c..f9f911099a7b 100644 --- a/UefiCpuPkg/Include/Library/VmgExitLib.h +++ b/UefiCpuPkg/Include/Library/VmgExitLib.h @@ -15,6 +15,8 @@ #include #include =20 +#define VE_EXCEPTION 20 + /** Perform VMGEXIT. =20 @@ -142,4 +144,30 @@ VmgExitHandleVc ( IN OUT EFI_SYSTEM_CONTEXT SystemContext ); =20 +/** + Handle a #VE exception. + + Performs the necessary processing to handle a #VE exception. + + The base library function returns an error equal to VE_EXCEPTION, + to be propagated to the standard exception handling stack. + + @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be s= et + as value to use on error. + @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT + + @retval EFI_SUCCESS Exception handled + @retval EFI_UNSUPPORTED #VE not supported, (new) exception value= to + propagate provided + @retval EFI_PROTOCOL_ERROR #VE handling failed, (new) exception val= ue to + propagate provided + +**/ +EFI_STATUS +EFIAPI +VmTdExitHandleVe ( + IN OUT EFI_EXCEPTION_TYPE *ExceptionType, + IN OUT EFI_SYSTEM_CONTEXT SystemContext + ); + #endif diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c b/UefiCpuPkg/= Library/VmgExitLibNull/VmTdExitNull.c new file mode 100644 index 000000000000..6a4e8087cb89 --- /dev/null +++ b/UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c @@ -0,0 +1,38 @@ +/** @file + + Copyright (c) 2021, Intel Corporation. All rights reserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ +#include +#include +#include + +/** + Handle a #VE exception. + + Performs the necessary processing to handle a #VE exception. + + @param[in, out] ExceptionType Pointer to an EFI_EXCEPTION_TYPE to be s= et + as value to use on error. + @param[in, out] SystemContext Pointer to EFI_SYSTEM_CONTEXT + + @retval EFI_SUCCESS Exception handled + @retval EFI_UNSUPPORTED #VE not supported, (new) exception value= to + propagate provided + @retval EFI_PROTOCOL_ERROR #VE handling failed, (new) exception val= ue to + propagate provided + +**/ +EFI_STATUS +EFIAPI +VmTdExitHandleVe ( + IN OUT EFI_EXCEPTION_TYPE *ExceptionType, + IN OUT EFI_SYSTEM_CONTEXT SystemContext + ) +{ + *ExceptionType =3D VE_EXCEPTION; + + return EFI_UNSUPPORTED; +} diff --git a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf b/UefiCpu= Pkg/Library/VmgExitLibNull/VmgExitLibNull.inf index d8770a21c355..4aab601939ff 100644 --- a/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf +++ b/UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf @@ -17,6 +17,7 @@ =20 [Sources.common] VmgExitLibNull.c + VmTdExitNull.c =20 [Packages] MdePkg/MdePkg.dec --=20 2.29.2.windows.2 -=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 (#88095): https://edk2.groups.io/g/devel/message/88095 Mute This Topic: https://groups.io/mt/90079977/1787277 Mute #ve:https://edk2.groups.io/g/devel/mutehashtag/ve 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-