From patchwork Fri Aug 18 09:50:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13357864 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 34A84C71149 for ; Fri, 18 Aug 2023 14:08:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qX05i-0004tz-Qs; Fri, 18 Aug 2023 10:04:42 -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 1qWwGk-0004yr-2H for qemu-devel@nongnu.org; Fri, 18 Aug 2023 05:59:50 -0400 Received: from mgamail.intel.com ([192.55.52.120]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qWwGh-0000In-4b for qemu-devel@nongnu.org; Fri, 18 Aug 2023 05:59:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692352787; x=1723888787; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=+/SvpCisWi7VrhwToytirBBYpzG+C0HWkIkqrhR7TC8=; b=HlFc7Rh8Y2EIZ44kv86e6BKPiezKI+EF37qv9KJqjiDVWrYUATr43MPg PXCZsPtdJ2NIm+cGahrMwz+ZVNIgId4DUTLtNHr+oFkKkLhWFH6UzKrbc kxHQeMdDGi+wjdVqBXTFsHv7DdE7ORrRqqyej99CPT/kwFekG1oRW0XoX AOvIbjyaT5yfoEn1JVQ2WABomgMdgp47SHJQNo9ABb7Kg5jyFdgXS24VD ldvVRqzKCkoKjFCyDJaqa3SKcFuUeDVJ9vw9gdIb3Arp5WnOVDryLlcEy oa+psCdo2oIj999Amsi0Klc54H8aEY7nds8qAQasX3r+gFl141IDASXyj g==; X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="371966895" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="371966895" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Aug 2023 02:58:52 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10805"; a="849235703" X-IronPort-AV: E=Sophos;i="6.01,182,1684825200"; d="scan'208";a="849235703" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.46]) by fmsmga002.fm.intel.com with ESMTP; 18 Aug 2023 02:58:47 -0700 From: Xiaoyao Li To: Paolo Bonzini , Richard Henderson , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , Ani Sinha , Peter Xu , David Hildenbrand , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , =?utf-8?q?Dani?= =?utf-8?q?el_P=2E_Berrang=C3=A9?= , Cornelia Huck , Eric Blake , Markus Armbruster , Marcelo Tosatti , Gerd Hoffmann Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, Eduardo Habkost , Laszlo Ersek , xiaoyao.li@intel.com, Isaku Yamahata , erdemaktas@google.com, Chenyi Qiang Subject: [PATCH v2 51/58] i386/tdx: LMCE is not supported for TDX Date: Fri, 18 Aug 2023 05:50:34 -0400 Message-Id: <20230818095041.1973309-52-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230818095041.1973309-1-xiaoyao.li@intel.com> References: <20230818095041.1973309-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.120; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.021, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.001, 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: 2.1.29 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 LMCE is not supported TDX since KVM doesn't provide emulation for MSR_IA32_FEAT_CTL. Signed-off-by: Xiaoyao Li --- target/i386/kvm/kvm-cpu.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/target/i386/kvm/kvm-cpu.c b/target/i386/kvm/kvm-cpu.c index 7237378a7d4e..bec8b5f918e7 100644 --- a/target/i386/kvm/kvm-cpu.c +++ b/target/i386/kvm/kvm-cpu.c @@ -15,6 +15,7 @@ #include "sysemu/sysemu.h" #include "hw/boards.h" +#include "tdx.h" #include "kvm_i386.h" #include "hw/core/accel-cpu.h" @@ -59,6 +60,10 @@ static bool lmce_supported(void) if (kvm_ioctl(kvm_state, KVM_X86_GET_MCE_CAP_SUPPORTED, &mce_cap) < 0) { return false; } + + if (is_tdx_vm()) + return false; + return !!(mce_cap & MCG_LMCE_P); }