From nobody Mon Feb 9 14:35:02 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+82992+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+82992+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1635772976; cv=none; d=zohomail.com; s=zohoarc; b=FZlro4+FpgSyjoXb9QJMa2QzNCtaqkiAhwOkyor1LAaQyy/sXvIa8FgwRrmUP94alfLEPs5QefiJaUui7970ru72DGfEsaltauWWCB0fWuf2YXwLcJFAHRwRhABrsDLhbbPpV5DCZ3mJGQCaxglKTiMV1ht5MTYhPJdcL+z6Mxc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1635772976; h=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=V6NQyS89jB4edelv8EbMy+30bv+Te5kK7S91zfjqREI=; b=CJxQnzfwP67VWUX88FgeAXzKiN9XoBS9Mc+M8/8Vrpajz/XDHkwEKMSqu6eD/eDcyx/3kLKApx01XHYaftVogKcdGfIHtb1ndCyVJQNrOnD01UGZNYblNMLHvq/TJxGbsz33hXwP2TywuaYHYwgqW7AYxToA69EiJibtNg9KHmE= 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+82992+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 1635772976534365.13083318552367; Mon, 1 Nov 2021 06:22:56 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id yUJBYY1788612x3p4vVafVkP; Mon, 01 Nov 2021 06:22:56 -0700 X-Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by mx.groups.io with SMTP id smtpd.web10.43964.1635772974593318024 for ; Mon, 01 Nov 2021 06:22:54 -0700 X-IronPort-AV: E=McAfee;i="6200,9189,10154"; a="254617507" X-IronPort-AV: E=Sophos;i="5.87,199,1631602800"; d="scan'208";a="254617507" X-Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2021 06:16:51 -0700 X-IronPort-AV: E=Sophos;i="5.87,199,1631602800"; d="scan'208";a="500035466" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.255.29.216]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2021 06:16:48 -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 V3 05/29] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception Date: Mon, 1 Nov 2021 21:15:54 +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: QCRp6OL4aNXetMM7vvznqFgYx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1635772976; bh=/ponSyDetjwhk1ybWSVbyjwizyv6zPzk7XkBV8HIt/8=; h=Cc:Date:From:Reply-To:Subject:To; b=gF7wKlzGG1vdHDHcmvxJsSlhTfJzR6RDPpV5OCISI/dtSTnVV06dPKQ44vZp/8OX7RU ypCHfIT9OK7AGFcno/SOopI5w2AkGJO/4BQvo/d6iMrVs0nGLk0oeA/QZXoS+XhAkDM4R yupAZuT0Y1BcSaDg5601SK3VhXENVNsrjjQ= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1635772978560100027 Content-Type: text/plain; charset="utf-8" RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3429 Add base support to handle #VE exceptions. Update the common exception handlers to invoke the VmTdExitHandleVe () function of the VmgExitLib library when a #VE is encountered. A non-zero return code will propagate to the targeted exception handler. 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 Signed-off-by: Min Xu Acked-by: Gerd Hoffmann --- .../PeiDxeSmmCpuException.c | 17 +++++++++++++++++ .../SecPeiCpuException.c | 18 ++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeSmmCpuExceptio= n.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeSmmCpuException.c index 892d349d4b37..7dd30b43ed13 100644 --- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeSmmCpuException.c +++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeSmmCpuException.c @@ -45,6 +45,23 @@ CommonExceptionHandlerWorker ( } } =20 + if (ExceptionType =3D=3D VE_EXCEPTION) { + EFI_STATUS Status; + // + // #VE needs to be handled immediately upon enabling exception handling + // and therefore can't use the RegisterCpuInterruptHandler() interface. + // + // Handle the #VE: + // On EFI_SUCCESS - Exception has been handled, return + // On other - ExceptionType contains (possibly new) exception + // value + // + Status =3D VmTdExitHandleVe (&ExceptionType, SystemContext); + if (!EFI_ERROR (Status)) { + return; + } + } + ExceptionHandlerContext =3D (EXCEPTION_HANDLER_CONTEXT *) (UINTN) (Syst= emContext.SystemContextIa32); ReservedVectors =3D ExceptionHandlerData->ReservedVectors; ExternalInterruptHandler =3D ExceptionHandlerData->ExternalInterruptHand= ler; diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c= b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c index 01b5a2f1f4fc..0ce26908834e 100644 --- a/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c +++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/SecPeiCpuException.c @@ -43,6 +43,24 @@ CommonExceptionHandler ( } } =20 + if (ExceptionType =3D=3D VE_EXCEPTION) { + EFI_STATUS Status; + // + // #VE needs to be handled immediately upon enabling exception handling + // and therefore can't use the RegisterCpuInterruptHandler() interface + // (which isn't supported under Sec and Pei anyway). + // + // Handle the #VE: + // On EFI_SUCCESS - Exception has been handled, return + // On other - ExceptionType contains (possibly new) exception + // value + // + Status =3D VmTdExitHandleVe (&ExceptionType, SystemContext); + if (!EFI_ERROR (Status)) { + return; + } + } + // // Initialize the serial port before dumping. // --=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 (#82992): https://edk2.groups.io/g/devel/message/82992 Mute This Topic: https://groups.io/mt/86739965/1787277 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-