From patchwork Thu Jan 25 03:23:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13529957 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 7E6C7C47DDF for ; Thu, 25 Jan 2024 03:33:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rSqTF-000876-Md; Wed, 24 Jan 2024 22:32:05 -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 1rSqTC-0007eK-M9 for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:02 -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 1rSqTA-0001E0-B6 for qemu-devel@nongnu.org; Wed, 24 Jan 2024 22:32:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1706153520; x=1737689520; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4/L/zFftOASDg8dMA/HkiVMm8CbnS0xqfd/o4PC3bt4=; b=fvBz5/gvNMCGK3+tLTUmiJC4nvg1GadOnIkcyGrjLpgQsLusaR/5hoI5 R1z1JCNmxN4NsyJ5VGxYd2L7tOSN5YUrsaLgFlRMrkyNXzB6HUmF/K1uB D5PziDSFzBGaDzsKDhjS918FYLu0X4V39uzUDSSHBXGhMucr4I1AaQPEW ADw21jzNjr9DJxHWnq0RnkcIPYckTA6MUrDXDhRwAreu/6qa06itdEUrI 3KYU8pwNxNF4hRs0aEHKBdxNs4a8j2sLDXBJ2/ADQy7bhIO2XvWP8Bhqx Lz3P2w9xSRw2nPd4JQGfle21MZVDVTzLunBq9dZlB5w3m5yisUTAcvYPa w==; X-IronPort-AV: E=McAfee;i="6600,9927,10962"; a="9430447" X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="9430447" 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 19:29:05 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,216,1701158400"; d="scan'208";a="2086516" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa005.jf.intel.com with ESMTP; 24 Jan 2024 19:29:00 -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 60/66] hw/i386: add eoi_intercept_unsupported member to X86MachineState Date: Wed, 24 Jan 2024 22:23:22 -0500 Message-Id: <20240125032328.2522472-61-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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add a new bool member, eoi_intercept_unsupported, to X86MachineState with default value false. Set true for TDX VM. Inability to intercept eoi causes impossibility to emulate level triggered interrupt to be re-injected when level is still kept active. which affects interrupt controller emulation. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- hw/i386/x86.c | 1 + include/hw/i386/x86.h | 1 + target/i386/kvm/tdx.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/hw/i386/x86.c b/hw/i386/x86.c index f13f49069d40..504575abfa98 100644 --- a/hw/i386/x86.c +++ b/hw/i386/x86.c @@ -1422,6 +1422,7 @@ static void x86_machine_initfn(Object *obj) x86ms->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8); x86ms->bus_lock_ratelimit = 0; x86ms->above_4g_mem_start = 4 * GiB; + x86ms->eoi_intercept_unsupported = false; } static void x86_machine_class_init(ObjectClass *oc, void *data) diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h index ab1d38569019..b689feb389b3 100644 --- a/include/hw/i386/x86.h +++ b/include/hw/i386/x86.h @@ -59,6 +59,7 @@ struct X86MachineState { /* CPU and apic information: */ bool apic_xrupt_override; + bool eoi_intercept_unsupported; unsigned pci_irq_mask; unsigned apic_id_limit; uint16_t boot_cpus; diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 838b7916278c..c844d753736c 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -715,6 +715,8 @@ int tdx_kvm_init(MachineState *ms, Error **errp) return -EINVAL; } + x86ms->eoi_intercept_unsupported = true; + if (!tdx_caps) { r = get_tdx_capabilities(errp); if (r) {