From nobody Mon Oct 6 08:25:34 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (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 7779E274B4D; Thu, 24 Jul 2025 08:03:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753344233; cv=none; b=HFsj+HTobEu2RwRm+qqLI1+CtY0zF3v3jHnFagq/7afq20Dj+SgXsIe8+qD7rY9b20nscOb08ohXS2Qy8qSUcsdd3LXO7aLD8yap64bHa6e1QT3ZYL/EtjuHYxd8rmr7NyThTimrTQOhjl4ktB/l6z52K3W5zUMIaR2rcmXcbYw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753344233; c=relaxed/simple; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bRSPfvWvaAXuLfVHf1ZFuEsCpDrBTTX5UN5HeNnUssgqfm4fAODn6j9NoOO2Syjb7ymwJsCZPpvijmd2TBizAAxrV63XselHZjuKP1ThuBvXuIEGshbXSpM8py4AtDX47Gxo86uutypS+o3DWxQvCzzJNgQ/2vNdhuy6aAkzHWA= 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=gveIbIrj; arc=none smtp.client-ip=192.198.163.10 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="gveIbIrj" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1753344233; x=1784880233; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; b=gveIbIrjYKVJC0i3BjzZODadcME+aV7TXBvOQ+RPdjZWUqDixgvvP1gB W/0YZd/BIMAP0oj/7OsVxvYKh4adB4IMOm5Ws20rA5+ivJ7OvKill6bPC vH67aNAEdNzX0ht4ZExsbhL7XWLNJNIeqI34IE2+VPzSlMozLo1wusKDY /MWndgpOtUd28yaDNrr+raIQgHnf/BmqE/efDmSPqe2qxVHayTgBoczOO G6/GqRiHGQgz0NMCyogmQo6pSBH7dKLd16D7WNlfjteKVZaY7mrXqt2s5 glbl6WTg9ALkTMxdXQ4Hkm/nrdIRXv2QR3rT+h2ef/u3jUNtnxua4aiFR Q==; X-CSE-ConnectionGUID: LVY/QKJfSvWL9tuNKtWWyw== X-CSE-MsgGUID: bDmfCBi7SHOWibJvtPORQQ== X-IronPort-AV: E=McAfee;i="6800,10657,11501"; a="66991972" X-IronPort-AV: E=Sophos;i="6.16,336,1744095600"; d="scan'208";a="66991972" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2025 01:03:53 -0700 X-CSE-ConnectionGUID: v98wCQaPSn+GsYbvI2v6Lw== X-CSE-MsgGUID: hWa08Ve4S1aQS44DO8RiAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,336,1744095600"; d="scan'208";a="160341827" Received: from savramon-mobl1 (HELO eresheto-mobl3.ger.corp.intel.com) ([10.245.244.60]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jul 2025 01:03:47 -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 v9 4/6] x86/sgx: Define error codes for use by ENCLS[EUPDATESVN] Date: Thu, 24 Jul 2025 11:02:13 +0300 Message-ID: <20250724080313.605676-5-elena.reshetova@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250724080313.605676-1-elena.reshetova@intel.com> References: <20250724080313.605676-1-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