From nobody Tue Feb 10 00:59:11 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1618828450; cv=none; d=zohomail.com; s=zohoarc; b=k+S1G/TiX1ffZwZldP1RHTjbY6jAEzhnSsJEoaB62z4jYneLv3kO/UjD0Fc9aiP+ZlfSEAHkeUepOaaR0uD9+GRPz/1/rA+x7E4/DGeKtqMnuOgMAzQ62vZPwfEg3Y71yRd0fx5IcoSlabbNErX+iSlCI+jj2s4UP+cefs2ElB0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1618828450; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=sxbArQhvQocOz7cdlqawh9k4iIOzDZIg2A8c528tEK0=; b=X7GIJ+5qeKcc7tE+V5+W5ysb1o0zTfidU6WOWfpjuRI8xkeCm+DLkuZfOagm92yKeYrim2vxoZnWe2JRWTy2QaVQMmrSY9HDA6F7us5rEIuT6ql1ypdlSAXf9eyQyTv8EF73mAF+jFnHuf48H2gdn1HnrSBz3ovX4FfcZYuorRk= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1618828450422492.6415146218783; Mon, 19 Apr 2021 03:34:10 -0700 (PDT) Received: from localhost ([::1]:46854 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lYREH-0007o3-7L for importer@patchew.org; Mon, 19 Apr 2021 06:34:09 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:32876) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lYR3L-0003yU-65 for qemu-devel@nongnu.org; Mon, 19 Apr 2021 06:22:51 -0400 Received: from mga17.intel.com ([192.55.52.151]:24099) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lYR3H-00025K-T3 for qemu-devel@nongnu.org; Mon, 19 Apr 2021 06:22:50 -0400 Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Apr 2021 03:22:44 -0700 Received: from icx-2s.bj.intel.com ([10.240.192.119]) by fmsmga008.fm.intel.com with ESMTP; 19 Apr 2021 03:22:43 -0700 IronPort-SDR: h7EgDDUtWy9GE/sHX4+p6EduwDxZh14Y/CMsSgVJdCwZQ4hBaCwct5QT7iCJhc18znGU9bcVkM Kjh8sIjKV1mA== X-IronPort-AV: E=McAfee;i="6200,9189,9958"; a="175409278" X-IronPort-AV: E=Sophos;i="5.82,233,1613462400"; d="scan'208";a="175409278" IronPort-SDR: ygO3AN2B1ONgyWrwGmIZhJmMYdSLVHwhNtw0+hQWcctU01eQFj10nng+UyLy6vuFUNFO99qLzG vw30oNWl+AVQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.82,233,1613462400"; d="scan'208";a="419947352" From: Yang Zhong To: qemu-devel@nongnu.org Subject: [PATCH 09/32] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EAX Date: Mon, 19 Apr 2021 18:01:33 +0800 Message-Id: <20210419100156.53504-10-yang.zhong@intel.com> X-Mailer: git-send-email 2.29.2.334.gfaefdd61ec In-Reply-To: <20210419100156.53504-1-yang.zhong@intel.com> References: <20210419100156.53504-1-yang.zhong@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.55.52.151; envelope-from=yang.zhong@intel.com; helo=mga17.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yang.zhong@intel.com, pbonzini@redhat.com, kai.huang@intel.com, seanjc@google.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Sean Christopherson CPUID leaf 12_1_EAX is an Intel-defined feature bits leaf enumerating the platform's SGX capabilities that may be utilized by an enclave, e.g. whether or not an enclave can gain access to the provision key. Currently there are six capabilities: - INIT: set when the enclave has has been initialized by EINIT. Cannot be set by software, i.e. forced to zero in CPUID. - DEBUG: permits a debugger to read/write into the enclave. - MODE64BIT: the enclave runs in 64-bit mode - PROVISIONKEY: grants has access to the provision key - EINITTOKENKEY: grants access to the EINIT token key, i.e. the enclave can generate EINIT tokens - KSS: Key Separation and Sharing enabled for the enclave. Note that the entirety of CPUID.0x12.0x1, i.e. all registers, enumerates the allowed ATTRIBUTES (128 bits), but only bits 31:0 are directly exposed to the user (via FEAT_12_1_EAX). Bits 63:32 are currently all reserved and bits 127:64 correspond to the allowed XSAVE Feature Request Mask, which is calculated based on other CPU features, e.g. XSAVE, MPX, AVX, etc... and is not exposed to the user. Signed-off-by: Sean Christopherson Signed-off-by: Yang Zhong --- target/i386/cpu.c | 21 +++++++++++++++++++++ target/i386/cpu.h | 1 + 2 files changed, 22 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index e723f52e22..ec12e12a33 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -678,6 +678,7 @@ static void x86_cpu_vendor_words2str(char *dst, uint32_= t vendor1, #define TCG_14_0_ECX_FEATURES 0 #define TCG_SGX_12_0_EAX_FEATURES 0 #define TCG_SGX_12_0_EBX_FEATURES 0 +#define TCG_SGX_12_1_EAX_FEATURES 0 =20 typedef enum FeatureWordType { CPUID_FEATURE_WORD, @@ -1366,6 +1367,26 @@ static FeatureWordInfo feature_word_info[FEATURE_WOR= DS] =3D { }, .tcg_features =3D TCG_SGX_12_0_EBX_FEATURES, }, + + [FEAT_SGX_12_1_EAX] =3D { + .type =3D CPUID_FEATURE_WORD, + .feat_names =3D { + NULL, "sgx-debug", "sgx-mode64", NULL, + "sgx-provisionkey", "sgx-tokenkey", NULL, "sgx-kss", + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + }, + .cpuid =3D { + .eax =3D 0x12, + .needs_ecx =3D true, .ecx =3D 1, + .reg =3D R_EAX, + }, + .tcg_features =3D TCG_SGX_12_1_EAX_FEATURES, + }, }; =20 typedef struct FeatureMask { diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 4ab3bc4fac..51b5968c88 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -551,6 +551,7 @@ typedef enum FeatureWord { FEAT_14_0_ECX, FEAT_SGX_12_0_EAX, /* CPUID[EAX=3D0x12,ECX=3D0].EAX (SGX) */ FEAT_SGX_12_0_EBX, /* CPUID[EAX=3D0x12,ECX=3D0].EBX (SGX MISCSELECT[3= 1:0]) */ + FEAT_SGX_12_1_EAX, /* CPUID[EAX=3D0x12,ECX=3D1].EAX (SGX ATTRIBUTES[3= 1:0]) */ FEATURE_WORDS, } FeatureWord; =20 --=20 2.29.2.334.gfaefdd61ec