From nobody Sun Oct 5 18:17:30 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 387CE24FC09; Fri, 1 Aug 2025 11:26:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.13 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754047617; cv=none; b=m8lXucTxc7OdF/v5kdcaOHPVaMwQV+m0RHPkiIHMPO03s/LtwmDK2TfBG2xpjHSZSBhku9Joejvd1k/zyoYyS/XRnz92lM35QYjeydsb7odXwsFRl6C0kKjgwaYFxd+8uCGSZENybqD5olg/1tovpzgo3FrHooxQudFFaY+TDMo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754047617; c=relaxed/simple; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uefgWAnZCL6PkiM4L5kMN7x5ZJUkkRNi2qx6O64AMKlRD3SxSOtJECP5ZYkLK5QcG7A/9p4HfeMSj0QTPO7TsqOBca++gQdao86rB8Iovp9RQ3saPHRrB2XM9slLTqa0hAu/rqic26NEwt+KWKS/8/MgwFMla9H5x9c6a1CVa3k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Ot7stSWa; arc=none smtp.client-ip=192.198.163.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Ot7stSWa" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1754047616; x=1785583616; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; b=Ot7stSWaS/pxQVUgNMh6bMqL6Kv8U6PZK1e+stLZj7V9au401nvSb814 URrIWjXpTuRkmzkpLvwmm6iDK7xqCYYnTy3ctX5pOy0Dy+MO9AVta71sN EtCpqA+VUpdhMNGwOv0hlKViR2dhXDA5yjTVGmfMFbQIJyiFNAVT6wVAU 6A26JfGv3nVs83JX4ogcL/Y5Z/5i0HKLntwVbKNQhAaAhXZwWzwD7+piK qrlc8jFbXlQhbrDksjhdKYkK1HbDpy5+n2ZMbofnsDft0JoY9SYhL/Msr fXqKc9aO5zn6VIS1TDhsNY/VWG46PLGW9w6f1h0CzHV7PvVg92VYw+u++ A==; X-CSE-ConnectionGUID: kPgB80l5Toi5rMlrEnfrAw== X-CSE-MsgGUID: M/bWmChgT22RosT3Q65RCQ== X-IronPort-AV: E=McAfee;i="6800,10657,11508"; a="59014790" X-IronPort-AV: E=Sophos;i="6.17,255,1747724400"; d="scan'208";a="59014790" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Aug 2025 04:26:56 -0700 X-CSE-ConnectionGUID: WkDXbp40TpWjxn6aOgi5Wg== X-CSE-MsgGUID: ifQ/OmVlSm+BdvTrH8HIlQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,255,1747724400"; d="scan'208";a="167727137" Received: from sschumil-mobl2.ger.corp.intel.com (HELO eresheto-mobl3.ger.corp.intel.com) ([10.245.244.159]) by fmviesa003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Aug 2025 04:26:51 -0700 From: Elena Reshetova To: dave.hansen@intel.com Cc: jarkko@kernel.org, seanjc@google.com, kai.huang@intel.com, mingo@kernel.org, linux-sgx@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, asit.k.mallick@intel.com, vincent.r.scarlata@intel.com, chongc@google.com, erdemaktas@google.com, vannapurve@google.com, bondarn@google.com, scott.raynor@intel.com, Elena Reshetova Subject: [PATCH v10 4/6] x86/sgx: Define error codes for use by ENCLS[EUPDATESVN] Date: Fri, 1 Aug 2025 14:25:19 +0300 Message-ID: <20250801112619.1117549-5-elena.reshetova@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250801112619.1117549-1-elena.reshetova@intel.com> References: <20250801112619.1117549-1-elena.reshetova@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add error codes for ENCLS[EUPDATESVN], then SGX CPUSVN update process can know the execution state of EUPDATESVN and notify userspace. Signed-off-by: Elena Reshetova --- arch/x86/include/asm/sgx.h | 37 ++++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 15 deletions(-) diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h index 6a0069761508..1abf1461fab6 100644 --- a/arch/x86/include/asm/sgx.h +++ b/arch/x86/include/asm/sgx.h @@ -28,21 +28,22 @@ #define SGX_CPUID_EPC_MASK GENMASK(3, 0) =20 enum sgx_encls_function { - ECREATE =3D 0x00, - EADD =3D 0x01, - EINIT =3D 0x02, - EREMOVE =3D 0x03, - EDGBRD =3D 0x04, - EDGBWR =3D 0x05, - EEXTEND =3D 0x06, - ELDU =3D 0x08, - EBLOCK =3D 0x09, - EPA =3D 0x0A, - EWB =3D 0x0B, - ETRACK =3D 0x0C, - EAUG =3D 0x0D, - EMODPR =3D 0x0E, - EMODT =3D 0x0F, + ECREATE =3D 0x00, + EADD =3D 0x01, + EINIT =3D 0x02, + EREMOVE =3D 0x03, + EDGBRD =3D 0x04, + EDGBWR =3D 0x05, + EEXTEND =3D 0x06, + ELDU =3D 0x08, + EBLOCK =3D 0x09, + EPA =3D 0x0A, + EWB =3D 0x0B, + ETRACK =3D 0x0C, + EAUG =3D 0x0D, + EMODPR =3D 0x0E, + EMODT =3D 0x0F, + EUPDATESVN =3D 0x18, }; =20 /** @@ -73,6 +74,10 @@ 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_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 +86,8 @@ enum sgx_return_code { SGX_CHILD_PRESENT =3D 13, SGX_INVALID_EINITTOKEN =3D 16, SGX_PAGE_NOT_MODIFIABLE =3D 20, + SGX_INSUFFICIENT_ENTROPY =3D 29, + SGX_NO_UPDATE =3D 31, SGX_UNMASKED_EVENT =3D 128, }; =20 --=20 2.45.2