From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga07.intel.com ([134.134.136.100]:35184 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388191AbeKFXPu (ORCPT ); Tue, 6 Nov 2018 18:15:50 -0500 From: Jarkko Sakkinen To: , , CC: , , , , , , , , , , Dave Hansen , "Jarkko Sakkinen" , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , "Andy Lutomirski" , "open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)" Subject: [PATCH v16 07/22] x86/mm: x86/sgx: Add new 'PF_SGX' page fault error code bit Date: Tue, 6 Nov 2018 15:45:46 +0200 Message-ID: <20181106134758.10572-8-jarkko.sakkinen@linux.intel.com> In-Reply-To: <20181106134758.10572-1-jarkko.sakkinen@linux.intel.com> References: <20181106134758.10572-1-jarkko.sakkinen@linux.intel.com> Sender: List-ID: Content-Type: text/plain Return-Path: linux-sgx-owner@vger.kernel.org MIME-Version: 1.0 From: Sean Christopherson The SGX bit is set in the #PF error code if and only if the fault is detected by the Enclave Page Cache Map (EPCM), a hardware-managed table that enforces the paging permissions defined by the enclave, e.g. to prevent the kernel from changing the permissions of an enclave's page(s). Cc: Dave Hansen Signed-off-by: Sean Christopherson Signed-off-by: Jarkko Sakkinen --- arch/x86/include/asm/traps.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index 3de69330e6c5..165c93dd700e 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -162,5 +162,6 @@ enum x86_pf_error_code { X86_PF_RSVD = 1 << 3, X86_PF_INSTR = 1 << 4, X86_PF_PK = 1 << 5, + X86_PF_SGX = 1 << 15, }; #endif /* _ASM_X86_TRAPS_H */ -- 2.19.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 754A0C32789 for ; Tue, 6 Nov 2018 13:50:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 475AF2083D for ; Tue, 6 Nov 2018 13:50:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 475AF2083D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-sgx-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388065AbeKFXPu (ORCPT ); Tue, 6 Nov 2018 18:15:50 -0500 Received: from mga07.intel.com ([134.134.136.100]:35184 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388191AbeKFXPu (ORCPT ); Tue, 6 Nov 2018 18:15:50 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Nov 2018 05:50:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,472,1534834800"; d="scan'208";a="106322584" Received: from fhoeg-mobl.ger.corp.intel.com (HELO localhost) ([10.249.254.66]) by orsmga002.jf.intel.com with ESMTP; 06 Nov 2018 05:50:22 -0800 From: Jarkko Sakkinen To: x86@kernel.org, platform-driver-x86@vger.kernel.org, linux-sgx@vger.kernel.org Cc: dave.hansen@intel.com, sean.j.christopherson@intel.com, nhorman@redhat.com, npmccallum@redhat.com, serge.ayoun@intel.com, shay.katz-zamir@intel.com, haitao.huang@intel.com, andriy.shevchenko@linux.intel.com, tglx@linutronix.de, kai.svahn@intel.com, Dave Hansen , Jarkko Sakkinen , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Andy Lutomirski , linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)) Subject: [PATCH v16 07/22] x86/mm: x86/sgx: Add new 'PF_SGX' page fault error code bit Date: Tue, 6 Nov 2018 15:45:46 +0200 Message-Id: <20181106134758.10572-8-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181106134758.10572-1-jarkko.sakkinen@linux.intel.com> References: <20181106134758.10572-1-jarkko.sakkinen@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-sgx-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org Message-ID: <20181106134546.8rCAK5bWDd9rUk48aOKY0GW4ugSoQnd_7Fw28XMUlWM@z> From: Sean Christopherson The SGX bit is set in the #PF error code if and only if the fault is detected by the Enclave Page Cache Map (EPCM), a hardware-managed table that enforces the paging permissions defined by the enclave, e.g. to prevent the kernel from changing the permissions of an enclave's page(s). Cc: Dave Hansen Signed-off-by: Sean Christopherson Signed-off-by: Jarkko Sakkinen --- arch/x86/include/asm/traps.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index 3de69330e6c5..165c93dd700e 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -162,5 +162,6 @@ enum x86_pf_error_code { X86_PF_RSVD = 1 << 3, X86_PF_INSTR = 1 << 4, X86_PF_PK = 1 << 5, + X86_PF_SGX = 1 << 15, }; #endif /* _ASM_X86_TRAPS_H */ -- 2.19.1