From patchwork Mon May 20 17:47:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chen, Zide" X-Patchwork-Id: 1937102 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=dBAPLSow; 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 4VjlS26M58z1ydW for ; Tue, 21 May 2024 03:49:06 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s977Q-0002B6-BT; Mon, 20 May 2024 13:48:16 -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 1s977L-0002Ab-7e for qemu-devel@nongnu.org; Mon, 20 May 2024 13:48:12 -0400 Received: from mgamail.intel.com ([192.198.163.19]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s977I-0003k1-KK for qemu-devel@nongnu.org; Mon, 20 May 2024 13:48:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716227289; x=1747763289; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=oHECevG9hOKny1QcCOBdhgDmorB+pvRQOOKuXeCBtfs=; b=dBAPLSowomZ5D8kNik30S86rDjlqjRqUgODqHmDCa42gGGYc5r/eIyHp LHQUxdgpGw+qCfmB1UDnPVRXMf7sMOdxjZqBfIjn0IKQ4H26fa2fhOrV7 YF7aoBienx+f2L0WrtxCyLOtDUlpABhtGNFfgjOikXm+xJ69freKK6c1p cebkAau/25RJLS10E0c7P1ffk+7dWUOGR40UN1kuT7db4EvUo65OrrcQc j+f8K3pvD+5OyQJcBbr346GZkCHS1ETxzIj/Io3wA8555gsEq0iO2bvQs w46R7zzqAmh5CgARAEw2dq3KQyRpBnDcnxL4g2RlijnU6QPD+jglbp8Oq g==; X-CSE-ConnectionGUID: 5gvKhVPQSiGmJrQYZ8BI8w== X-CSE-MsgGUID: cT8+y6pkRiW2+IsmjFgBkA== X-IronPort-AV: E=McAfee;i="6600,9927,11078"; a="12222080" X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="12222080" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 10:47:54 -0700 X-CSE-ConnectionGUID: /XRrm/iUQiybwxK9kSpcDQ== X-CSE-MsgGUID: GyAt6q4KTXGQGBaGUpwzvw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,175,1712646000"; d="scan'208";a="32746620" Received: from 9cc2c43eec6b.jf.intel.com ([10.54.77.100]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 10:47:54 -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, Zide Chen Subject: [PATCH 0/3] improve -overcommit cpu-pm=on|off Date: Mon, 20 May 2024 10:47:30 -0700 Message-Id: <20240520174733.32979-1-zide.chen@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.19; 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, RCVD_IN_MSPIKE_H2=-0.001, 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.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. 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 | 8 ++++++-- target/i386/cpu.c | 24 ++++++++++++------------ target/i386/host-cpu.c | 12 ------------ target/i386/kvm/kvm-cpu.c | 12 +++++++++--- 4 files changed, 27 insertions(+), 29 deletions(-)