From patchwork Fri Apr 1 14:24:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Cathy" X-Patchwork-Id: 12798388 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04937C433FE for ; Fri, 1 Apr 2022 14:24:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346815AbiDAO0Z (ORCPT ); Fri, 1 Apr 2022 10:26:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57308 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346817AbiDAO0Y (ORCPT ); Fri, 1 Apr 2022 10:26:24 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 034D6119850 for ; Fri, 1 Apr 2022 07:24:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1648823074; x=1680359074; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=+3y6DxvsctMxXZh/+jol0SmDk7ld6S7QJDcag3c4+r0=; b=SDLUR/LeBcan71u7GszQcfh3QhRht6EAsQBpPNzRgHfaULTkEi0mfgz3 BXR6nosdI40lB6C3Pm1rqy9jzig0skFPg0qBIIciXurgw+Y4CyntjkZew afViauDM8lI8wdq5CGQMRvp4n7I14Krb9xWXIquq9f2fug+31UY72RSi+ wz8zTCnkFUVPLN6xmLsL66oGapQGpJrO04dh9zBn/hJe7i0P1NS2/qi4z E8TdOx8Npo3TdVSsVJRZmCjuhgT5OfCSy0goyjfvrZoyCIWHosoDrH3aN bzG+6IORlBH3tiMvrKbkFz5VINoX9mxdBrfTp1vqL7QYoCnw6tuWhHXG6 w==; X-IronPort-AV: E=McAfee;i="6200,9189,10304"; a="240739907" X-IronPort-AV: E=Sophos;i="5.90,227,1643702400"; d="scan'208";a="240739907" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Apr 2022 07:24:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,227,1643702400"; d="scan'208";a="695908391" Received: from cathy-vostro-3670.bj.intel.com ([10.238.156.128]) by fmsmga001.fm.intel.com with ESMTP; 01 Apr 2022 07:24:32 -0700 From: Cathy Zhang To: linux-sgx@vger.kernel.org, x86@kernel.org Cc: jarkko@kernel.org, reinette.chatre@intel.com, dave.hansen@intel.com, ashok.raj@intel.com, cathy.zhang@intel.com Subject: [RFC PATCH v3 07/10] x86/sgx: Define error codes for ENCLS[EUPDATESVN] Date: Fri, 1 Apr 2022 22:24:06 +0800 Message-Id: <20220401142409.26215-8-cathy.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220401142409.26215-1-cathy.zhang@intel.com> References: <20220401142409.26215-1-cathy.zhang@intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-sgx@vger.kernel.org Add error codes for ENCLS[EUPDATESVN], then SGX CPUSVN update process can know the execution state of EUPDATESVN and notify userspace. Signed-off-by: Cathy Zhang --- arch/x86/include/asm/sgx.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h index 03ec7e32659c..4a8ca7281229 100644 --- a/arch/x86/include/asm/sgx.h +++ b/arch/x86/include/asm/sgx.h @@ -65,17 +65,27 @@ enum sgx_encls_function { /** * enum sgx_return_code - The return code type for ENCLS, ENCLU and ENCLV + * %SGX_EPC_PAGE_CONFLICT Page is being written by other ENCLS function. * %SGX_NOT_TRACKED: Previous ETRACK's shootdown sequence has not * been completed yet. * %SGX_CHILD_PRESENT SECS has child pages present in the EPC. * %SGX_INVALID_EINITTOKEN: EINITTOKEN is invalid and enclave signer's * public key does not match IA32_SGXLEPUBKEYHASH. + * %SGX_INSUFFICIENT_ENTROPY: Insufficient entropy in RNG. + * %SGX_EPC_NOT_READY: EPC is not ready for SVN update. + * %SGX_NO_UPDATE: EUPDATESVN was successful, but CPUSVN was not + * updated because current SVN was not newer than + * CPUSVN. * %SGX_UNMASKED_EVENT: An unmasked event, e.g. INTR, was received */ enum sgx_return_code { + SGX_EPC_PAGE_CONFLICT = 7, SGX_NOT_TRACKED = 11, SGX_CHILD_PRESENT = 13, SGX_INVALID_EINITTOKEN = 16, + SGX_INSUFFICIENT_ENTROPY = 29, + SGX_EPC_NOT_READY = 30, + SGX_NO_UPDATE = 31, SGX_UNMASKED_EVENT = 128, };