From nobody Tue Oct 7 09:02:44 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 830222EF66F; Fri, 11 Jul 2025 16:54:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752252845; cv=none; b=CCE8wNS4N4uvuAmDXy8yeT0Qxm9M1sorxEW8Dk7y2BTQUP16zColyRa9NIOI9Uo7Pn8FmdiyRR7t4Vu2H9wJLY1U/3ZlKP/mAIu58m9ifPsWp3SwPdX6otyuq2QBG3+QPLZuj+CjTE3Y+YGNCjAJO7TIxGdO27O1iabupPelHpk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752252845; c=relaxed/simple; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ae5EOyAlDUvXMPsL+3ZqSpbelofLMC74GMYa9CeaJncZ7CVRyr6zetEdFuR2KuoZxaqwpPrOYH6wCIx0WycbbejTsCl9ScmZKuljJ4T2VyYHPSnEhG3Ugqv6xM8Qdzmz/2mbTtmefavOcH6wcbOPuyFW215iIIF9cEOpDUctEX4= 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=GVKyN3+5; arc=none smtp.client-ip=192.198.163.19 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="GVKyN3+5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752252843; x=1783788843; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5tn1s0xpEgieBaW2rEVLCUgMZNIIbtgh5f8AiANQjxI=; b=GVKyN3+5lhLFbWeVbzMyTSC2Gft+3Ayyr6DIN1tLFaunyxV7nYu/gBQQ eAaDokdnyrE5GsG7vg//6badb8HGLtN1xVg32jw6fX4ZrhP8+zl0Ufk/1 DwqdvlcG5dmjevUsVMLqIO/oldr6u2AXLQ7ImgNsFLBEdRPBzYlumlkn1 Q/owX7L/Rq+Q+2AXSQKxhkbY6fMmEuoZXYxN3iB/ucjlBIzE6QWCatD3i jHxv2ovz+BJdz/XM5RHsezDp5sTmBYfVgZdIlWIq+Y4qZPXOnXMcUMFey zYiOijLKroRVFf0bSSqDDZOuqfcPXpXgXnGyDY5E1Eek/YxvDen9YDrOx w==; X-CSE-ConnectionGUID: M8+kZxp9TmqYzJDg+sHo3w== X-CSE-MsgGUID: K078LTO7Tia/ODf3K1KsAg== X-IronPort-AV: E=McAfee;i="6800,10657,11491"; a="53665485" X-IronPort-AV: E=Sophos;i="6.16,304,1744095600"; d="scan'208";a="53665485" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jul 2025 09:52:52 -0700 X-CSE-ConnectionGUID: J0JmjrNZSeC8CtwGlHQibQ== X-CSE-MsgGUID: xoYkqDMHSGmlZQca8kSVLQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,304,1744095600"; d="scan'208";a="187387793" Received: from lfiedoro-mobl.ger.corp.intel.com (HELO eresheto-mobl3.ger.corp.intel.com) ([10.245.245.49]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jul 2025 09:52:47 -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, dionnaglaze@google.com, bondarn@google.com, scott.raynor@intel.com, Elena Reshetova Subject: [PATCH v7 3/5] x86/sgx: Define error codes for use by ENCLS[EUPDATESVN] Date: Fri, 11 Jul 2025 19:50:32 +0300 Message-ID: <20250711165212.1354943-4-elena.reshetova@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250711165212.1354943-1-elena.reshetova@intel.com> References: <20250711165212.1354943-1-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