From patchwork Fri Apr 21 04:12:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yang, Weijiang" X-Patchwork-Id: 13219564 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 483B6C77B78 for ; Fri, 21 Apr 2023 07:18:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ppl1I-000819-46; Fri, 21 Apr 2023 03:17:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppl0y-0007pj-K2 for qemu-devel@nongnu.org; Fri, 21 Apr 2023 03:17:09 -0400 Received: from mga17.intel.com ([192.55.52.151]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppl0u-0004Zs-4k for qemu-devel@nongnu.org; Fri, 21 Apr 2023 03:17:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682061420; x=1713597420; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Gw9MANvnPGo+NUbmsWsIghJonaNlSR49MNlqyyD1Gn0=; b=Anfl7S5Irt0iEHQly7JH/XxM3dt9SVeod+8VBICdPM7k7kJ5byIZyBZB YiZ43YfesFpWTfcM0bCwlO2luH91jGzbdr5B4X+y1IhPbHkTrSovsjVkW GzOxejD9CA8zdcoRvehBuZQzdC0sJUeWBBNaqCo8lQ9Dk18SwcwK6lhUh GhXUsOS1zYgbooJzlpK/BSZGqnOpceApY2hnA9BmRy6NfZk7armEyRov0 jB/DlppuaPoMqQPxcCm1EaPPJCXJIUl17nUhoU/TCYddt7faHPeNBZU7J 6qwag1/G6HGHzv/BMz8UHYqVcw8BY8Cvi6Arh7wAcQmYdIKDtPl5+1EAa g==; X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="326260543" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="326260543" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2023 00:16:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="938385331" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="938385331" Received: from embargo.jf.intel.com ([10.165.9.183]) by fmsmga006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2023 00:16:40 -0700 From: Yang Weijiang To: pbonzini@redhat.com, mtosatti@redhat.com, seanjc@google.com, qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, weijiang.yang@intel.com Subject: [PATCH 4/4] target/i386: Advertise CET flags in feature words Date: Fri, 21 Apr 2023 00:12:27 -0400 Message-Id: <20230421041227.90915-5-weijiang.yang@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230421041227.90915-1-weijiang.yang@intel.com> References: <20230421041227.90915-1-weijiang.yang@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.151; envelope-from=weijiang.yang@intel.com; helo=mga17.intel.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_03_06=1.592, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add SHSTK and IBT flags in feature words alone with entry/exit control flags. CET SHSTK and IBT feature are enumerated via CPUID(EAX=7,ECX=0) ECX[bit 7] and EDX[bit 20]. CET states load/restore at vmentry/ vmexit are controlled by VMX_ENTRY_CTLS[bit 20] and VMX_EXIT_CTLS[bit 28]. Enable these flags so that KVM can support the features properly. Signed-off-by: Yang Weijiang --- target/i386/cpu.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index be86df8c1d..f11c5ce86c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -834,7 +834,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .type = CPUID_FEATURE_WORD, .feat_names = { NULL, "avx512vbmi", "umip", "pku", - NULL /* ospke */, "waitpkg", "avx512vbmi2", NULL, + NULL /* ospke */, "waitpkg", "avx512vbmi2", "shstk", "gfni", "vaes", "vpclmulqdq", "avx512vnni", "avx512bitalg", NULL, "avx512-vpopcntdq", NULL, "la57", NULL, NULL, NULL, @@ -857,7 +857,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "avx512-vp2intersect", NULL, "md-clear", NULL, NULL, NULL, "serialize", NULL, "tsx-ldtrk", NULL, NULL /* pconfig */, "arch-lbr", - NULL, NULL, "amx-bf16", "avx512-fp16", + "ibt", NULL, "amx-bf16", "avx512-fp16", "amx-tile", "amx-int8", "spec-ctrl", "stibp", NULL, "arch-capabilities", "core-capability", "ssbd", }, @@ -1119,7 +1119,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "vmx-exit-save-efer", "vmx-exit-load-efer", "vmx-exit-save-preemption-timer", "vmx-exit-clear-bndcfgs", NULL, "vmx-exit-clear-rtit-ctl", NULL, NULL, - NULL, "vmx-exit-load-pkrs", NULL, NULL, + "vmx-exit-save-cet-ctl", "vmx-exit-load-pkrs", NULL, NULL, }, .msr = { .index = MSR_IA32_VMX_TRUE_EXIT_CTLS, @@ -1134,7 +1134,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { NULL, "vmx-entry-ia32e-mode", NULL, NULL, NULL, "vmx-entry-load-perf-global-ctrl", "vmx-entry-load-pat", "vmx-entry-load-efer", "vmx-entry-load-bndcfgs", NULL, "vmx-entry-load-rtit-ctl", NULL, - NULL, NULL, "vmx-entry-load-pkrs", NULL, + "vmx-entry-load-cet-ctl", NULL, "vmx-entry-load-pkrs", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, },