From patchwork Thu Jan 25 03:23:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 1890509 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=Vnf6HWBg; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4TL5zV3XzCz23f0 for ; Thu, 25 Jan 2024 14:34:30 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rSqTE-0007oQ-EP; Wed, 24 Jan 2024 22:32:04 -0500 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 1rSqTB-0007V9-D8 for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:01 -0500 Received: from mgamail.intel.com ([192.198.163.10]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rSqT9-0001Dy-5q for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706153519; x=1737689519; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kAhbpSvf5mcqCqnuUHwzUyFR0bBkU6DMg1Kt+jDOu9k=; b=Vnf6HWBgPiF3W//ca0dVmvvDvXOFOtUX1F46+EedR1aw0pkVCkhR89vc RKWCIWhsjicrrJjF1o1hE0nLMKKGJNoudNbtdz9Lq2S/Eq/ZEeuOcHw10 Ni5XM3z47DqtubRemhRFOqMND/FnQCAH88BtUU3bK7Gh0t6JcGHs6km/z xry6H61mY5y/3xTcpJE4hxvZ+shed+NkVvAjK6/05lYqmmbsthVJxqek3 B92Gt7iCrGRO5A7o9+s6NWmGaTOHksYRSB1x2kjGwYl8YN3hjV0JP2aGk YG6zqWt4vHZ68xDCkaBIGdMtExJCGkXz9GmMYHK6mYKFOv4tYxne3B1hQ g==; X-IronPort-AV: E=McAfee;i="6600,9927,10962"; a="9430418" X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="9430418" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2024 19:29:00 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="2086471" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa005.jf.intel.com with ESMTP; 24 Jan 2024 19:28:55 -0800 From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Cornelia Huck , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: [PATCH v4 59/66] i386/tdx: LMCE is not supported for TDX Date: Wed, 24 Jan 2024 22:23:21 -0500 Message-Id: <20240125032328.2522472-60-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240125032328.2522472-1-xiaoyao.li@intel.com> References: <20240125032328.2522472-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.10; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.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 9c791b7b0520..8c618869533c 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" @@ -60,6 +61,10 @@ 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); }