From nobody Thu Apr 25 06:02:24 2024 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+101480+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+101480+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1679383820; cv=none; d=zohomail.com; s=zohoarc; b=G+8WHTZP3zBSpUknIvk19QrYEs2WFAaFli8ZFtvN2fM/slaF6YPumkPzlrd/XFWHHlYZC2RwzBSH3JkrquPlmgC8mlteTWlZgVhbYzVGnz7s7RTc5b0AmhrDf5aWX5aoKalR6J+y6cFDIFv8OFA9gQcojxaXM6AhVONq9coQ69E= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1679383820; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Sender:Subject:To; bh=aMzt3Z2b4G7hKAznwD9ZpnxMmV/8t66G8WXQIZ8Uxog=; b=mF+CAT/n/kXGZp+7LCQqU042OozwCnHyIvGqXdC+By6Abi9fX4vWooGrMrZa3VHOl+wtXN5dz+VvxdDCHsX0lBGBErbUqAidcKb9yan79HQpDm9mFCyvVkLyR3SXQ+vynTsySkBXSN+wMNCi6zQYGqPc3293+xkxvERg1Sw8dro= 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+101480+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 1679383820093968.7326662039455; Tue, 21 Mar 2023 00:30:20 -0700 (PDT) Return-Path: X-Received: by 127.0.0.2 with SMTP id PD3LYY1788612xj6nS8S7UuL; Tue, 21 Mar 2023 00:30:19 -0700 X-Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mx.groups.io with SMTP id smtpd.web11.7304.1679383819063383511 for ; Tue, 21 Mar 2023 00:30:19 -0700 X-IronPort-AV: E=McAfee;i="6600,9927,10655"; a="338905935" X-IronPort-AV: E=Sophos;i="5.98,278,1673942400"; d="scan'208";a="338905935" X-Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2023 00:30:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10655"; a="824819059" X-IronPort-AV: E=Sophos;i="5.98,278,1673942400"; d="scan'208";a="824819059" X-Received: from xieyuanh-mobl.ccr.corp.intel.com ([10.238.0.208]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Mar 2023 00:30:17 -0700 From: "Yuanhao Xie" To: devel@edk2.groups.io Cc: Guo Dong , Ray Ni , Sean Rhodes , James Lu , Gua Guo , Ted Kuo Subject: [edk2-devel] [PATCH] UefiCpuPkg: Solve that stack top address is not mapped in pagetable Date: Tue, 21 Mar 2023 15:29:59 +0800 Message-Id: <20230321072959.881-1-yuanhao.xie@intel.com> 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,yuanhao.xie@intel.com X-Gm-Message-State: AVk2S6X9Sg4DP0aGEpSxVcBrx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1679383819; bh=ZeU2XoMm6Z+WAq3LyJ+ZtBgyHk3gPqodUwBp0Riwx+c=; h=Cc:Date:From:Reply-To:Subject:To; b=tC6ml7IgKpYZBA0K3vTrh9UCC2XEvccoG1KyedBFDWPq1xwxGl2+W9pXf8Qw426iS/O iibX+4Q8DxcAnNtOhXhYfp1JdNcRrsMa+O7Jnp+cGsRy68TbyRdzJxf2ll4SKIf56fcse Y/B395cnxa/VN3X2IB4Wb585Atba4bM3dq8= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1679383820484100001 Content-Type: text/plain; charset="utf-8" For the case CPU logic index is 0, RSP points to the very top of all AP stacks. That address is not mapped in page table. Cc: Guo Dong Cc: Ray Ni Cc: Sean Rhodes Cc: James Lu Cc: Gua Guo Signed-off-by: Ted Kuo Reviewed-by: Ray Ni --- UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 1 + 1 file changed, 1 insertion(+) diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm b/UefiCpuPkg/Lib= rary/MpInitLib/X64/MpFuncs.nasm index 9ebe31795b..5bcdf7726b 100644 --- a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm +++ b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm @@ -315,6 +315,7 @@ MwaitCheckGeneric: MwaitLoopGeneric: cli mov rax, rsp ; Set Monitor Address + sub eax, 8 ; To ensure the monitor address is in th= e page table xor ecx, ecx ; ecx =3D 0 xor edx, edx ; edx =3D 0 monitor --=20 2.39.1.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 (#101480): https://edk2.groups.io/g/devel/message/101480 Mute This Topic: https://groups.io/mt/97750173/1787277 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-