From patchwork Wed Mar 9 10:40:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Cathy" X-Patchwork-Id: 12774909 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 75A37C433EF for ; Wed, 9 Mar 2022 10:40:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230499AbiCIKld (ORCPT ); Wed, 9 Mar 2022 05:41:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38494 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230492AbiCIKlc (ORCPT ); Wed, 9 Mar 2022 05:41:32 -0500 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0501F4F45A for ; Wed, 9 Mar 2022 02:40:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646822433; x=1678358433; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=1FPC1+faoHuUKJzI0PehoPzEV0/G34kXYwPqzFyYCuU=; b=EGxKM6gX0FJSdZx9uKN4Lr+NxbG4DR34uEedI2oKwc0plcFoYrDQdQYA M2+oE/iJiOGYJTC87M8Z5wu88AN0/GTgv2JkWpdMaaYBb3XCWY547SScr LgXyT7spajx/TNZqVUAuLBYR5mW6fGK4cAYEGwhF9gYAYGdHG8u8qkA2x jTZGFDit8T/GK40DEhRdCbPXAFHGtuHf+jyR0dxiN5uKFZ7f/efyYaaww eUOK4Pb4rwwebaBPQtu+bbo49B7hAZAnxaasfYPGqOHu48rUVoP/OsrGq df72IsZYBRw8v50a1ND53cdukih701Dk4ZguguQNEOuNFOs5nvj+6zc+L Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10280"; a="341373583" X-IronPort-AV: E=Sophos;i="5.90,167,1643702400"; d="scan'208";a="341373583" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2022 02:40:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,167,1643702400"; d="scan'208";a="547582926" Received: from cathy-vostro-3670.bj.intel.com ([10.238.156.128]) by fmsmga007.fm.intel.com with ESMTP; 09 Mar 2022 02:40:32 -0800 From: Cathy Zhang To: linux-sgx@vger.kernel.org, x86@kernel.org Cc: dave.hansen@intel.com, cathy.zhang@intel.com Subject: [RFC PATCH 07/11] x86/sgx: Define error codes for ENCLS[EUPDATESVN] Date: Wed, 9 Mar 2022 18:40:46 +0800 Message-Id: <20220309104050.18207-8-cathy.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220309104050.18207-1-cathy.zhang@intel.com> References: <20220309104050.18207-1-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 | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h index eae20fa52b93..6aa36c1be426 100644 --- a/arch/x86/include/asm/sgx.h +++ b/arch/x86/include/asm/sgx.h @@ -73,6 +73,11 @@ enum sgx_encls_function { * public key does not match IA32_SGXLEPUBKEYHASH. * %SGX_PAGE_NOT_MODIFIABLE: The EPC page cannot be modified because it * is in the PENDING or MODIFIED state. + * %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 { @@ -81,6 +86,9 @@ enum sgx_return_code { SGX_CHILD_PRESENT = 13, SGX_INVALID_EINITTOKEN = 16, SGX_PAGE_NOT_MODIFIABLE = 20, + SGX_INSUFFICIENT_ENTROPY = 29, + SGX_EPC_NOT_READY = 30, + SGX_NO_UPDATE = 31, SGX_UNMASKED_EVENT = 128, };