From patchwork Tue Aug 6 18:56:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Christopherson X-Patchwork-Id: 11079539 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C571814DB for ; Tue, 6 Aug 2019 18:57:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B761528832 for ; Tue, 6 Aug 2019 18:57:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ABA8E28875; Tue, 6 Aug 2019 18:57:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5AFD628832 for ; Tue, 6 Aug 2019 18:57:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726452AbfHFS5I (ORCPT ); Tue, 6 Aug 2019 14:57:08 -0400 Received: from mga06.intel.com ([134.134.136.31]:40918 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726350AbfHFS5H (ORCPT ); Tue, 6 Aug 2019 14:57:07 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Aug 2019 11:56:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,353,1559545200"; d="scan'208";a="176715083" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.41]) by orsmga003.jf.intel.com with ESMTP; 06 Aug 2019 11:56:59 -0700 From: Sean Christopherson To: Eduardo Habkost , Igor Mammedov , "Michael S. Tsirkin" , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Cornelia Huck , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [RFC PATCH 07/20] i386: Add SGX CPUID leaf FEAT_SGX_12_1_EBX Date: Tue, 6 Aug 2019 11:56:36 -0700 Message-Id: <20190806185649.2476-8-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190806185649.2476-1-sean.j.christopherson@intel.com> References: <20190806185649.2476-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP CPUID leaf 12_1_EBX is an Intel-defined feature bits leaf enumerating the platform's SGX extended capabilities. Currently there is a single capabilitiy: - EXINFO: record information about #PFs and #GPs in the enclave's SSA Signed-off-by: Sean Christopherson --- target/i386/cpu.c | 20 ++++++++++++++++++++ target/i386/cpu.h | 1 + 2 files changed, 21 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index e3dd76d3ba..ab08c1765e 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -777,6 +777,7 @@ static void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1, CPUID_XSAVE_XSAVEC, CPUID_XSAVE_XSAVES */ #define TCG_SGX_12_0_EAX_FEATURES 0 #define TCG_SGX_12_1_EAX_FEATURES 0 +#define TCG_SGX_12_1_EBX_FEATURES 0 typedef enum FeatureWordType { CPUID_FEATURE_WORD, @@ -1264,6 +1265,25 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { }, .tcg_features = TCG_SGX_12_1_EAX_FEATURES, }, + [FEAT_SGX_12_1_EBX] = { + .type = CPUID_FEATURE_WORD, + .feat_names = { + "sgx-exinfo" , NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + 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 = { + .eax = 0x12, + .needs_ecx = true, .ecx = 1, + .reg = R_EBX, + }, + .tcg_features = TCG_SGX_12_1_EBX_FEATURES, + }, }; typedef struct X86RegisterInfo32 { diff --git a/target/i386/cpu.h b/target/i386/cpu.h index fe4660effa..4139c94669 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -508,6 +508,7 @@ typedef enum FeatureWord { FEAT_CORE_CAPABILITY, FEAT_SGX_12_0_EAX, /* CPUID[EAX=0x12,ECX=0].EAX (SGX) */ FEAT_SGX_12_1_EAX, /* CPUID[EAX=0x12,ECX=1].EAX (SGX ATTRIBUTES[31:0]) */ + FEAT_SGX_12_1_EBX, /* CPUID[EAX=0x12,ECX=1].EBX (SGX MISCSELECT[31:0]) */ FEATURE_WORDS, } FeatureWord;