From patchwork Fri May 24 20:00:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chen, Zide" X-Patchwork-Id: 13673603 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 E8C92C25B74 for ; Fri, 24 May 2024 20:02:15 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sAb6J-0002Ij-Dy; Fri, 24 May 2024 16:01:15 -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 1sAb63-000260-2W; Fri, 24 May 2024 16:01:04 -0400 Received: from mgamail.intel.com ([192.198.163.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sAb5v-00050y-BG; Fri, 24 May 2024 16:00:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716580851; x=1748116851; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=vwKH01rzlWx9561/Am/sOOt9A88NKrbQ8rGO8mBibgg=; b=lGf4b18MXA1tXMmEYjm6qBZWrtW14NIALMVXSW7eL/n3WqwzG/UWScPb VzzHX2myQUn8Y/fXhXfU4MmnEP9KQoEeoQBuJ8RpFcKCF2MWwQK7W+Qwd KueeKiANdcE5fAGHK8EP0x2wSqt1kd0aBPyBlCQe+DHzoWcnhFV5TPdO6 XPSOEkMO4gDVbIBRiMluihKNk3v7/qpEq25pPvapMMl1FsFBCN8wTUl2I sHS6NMdHo/CGxC74fvbMQU7E8MRhO7mEEeMAtHkTa2UsDmRJXNDCEoq6m 79gnOTLN1/ERanl24WlJ+kOygC0rMSLc00OggWP/Hp5wOnU+cAwPh6Mhm Q==; X-CSE-ConnectionGUID: tPiOFDYWQ8CEKWuz7m8h1Q== X-CSE-MsgGUID: gUtLtME2Q7Wa3rtMlXL6Bg== X-IronPort-AV: E=McAfee;i="6600,9927,11082"; a="15918258" X-IronPort-AV: E=Sophos;i="6.08,186,1712646000"; d="scan'208";a="15918258" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2024 13:00:44 -0700 X-CSE-ConnectionGUID: JXLt8lESQquj1gja9uLb2Q== X-CSE-MsgGUID: pcBJnSG3Rly2zhL9xGHkpQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,186,1712646000"; d="scan'208";a="39108900" Received: from 9cc2c43eec6b.jf.intel.com ([10.54.77.100]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2024 13:00:45 -0700 From: Zide Chen To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com, mst@redhat.com, thuth@redhat.com, cfontana@suse.de, xiaoyao.li@intel.com, qemu-trivial@nongnu.org, Zide Chen Subject: [PATCH V2 0/3] improve -overcommit cpu-pm=on|off Date: Fri, 24 May 2024 13:00:14 -0700 Message-Id: <20240524200017.150339-1-zide.chen@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.13; envelope-from=zide.chen@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=-0.001, 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 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 Currently, if running "-overcommit cpu-pm=on" on hosts that don't have MWAIT support, the MWAIT/MONITOR feature is advertised to the guest and executing MWAIT/MONITOR on the guest triggers #UD. V2: - [PATCH 1]: took Thomas' suggestion for more generic fix - [PATCH 2/3]: no changes Zide Chen (3): vl: Allow multiple -overcommit commands target/i386: call cpu_exec_realizefn before x86_cpu_filter_features target/i386: Move host_cpu_enable_cpu_pm into kvm_cpu_realizefn() system/vl.c | 4 ++-- target/i386/cpu.c | 24 ++++++++++++------------ target/i386/host-cpu.c | 12 ------------ target/i386/kvm/kvm-cpu.c | 12 +++++++++--- 4 files changed, 23 insertions(+), 29 deletions(-)