From mboxrd@z Thu Jan 1 00:00:00 1970 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 BD2B9C369C2 for ; Wed, 23 Apr 2025 03:05:19 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1u7QPg-0002YR-7R; Tue, 22 Apr 2025 23:04:40 -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 1u7QPe-0002YF-Lc for qemu-devel@nongnu.org; Tue, 22 Apr 2025 23:04:38 -0400 Received: from mgamail.intel.com ([198.175.65.10]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1u7QPb-0004p4-Bk for qemu-devel@nongnu.org; Tue, 22 Apr 2025 23:04:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1745377475; x=1776913475; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=WTQm2u4iP01bF9Q0+aqoUjJjydCuXyRZ6MzXC/f9H9k=; b=KCXjqnRX0ckQFkStEhDBvjlPzH61xm4wxvGIIBn4c+gkx2CXpcwtMXyS wN2BXEltZcN+CiOfDLQUxLmgqklCZ2BesohBcYW5eqorJgh01k4ObdQf9 K+KopwArxtmN/YI1kUryFd92AhUt4wD01buY8MRDJKmRuKbH0BhOA+gjG JaqFhmXpPSxgpSceDLqV4o4xhwaZpz9M9JBg7zM0kgZzzXUqA9g8QpMsc uB0qnmGDgYgzijivWDQrV89fkOHFePD3khNAuFHF4ynXnNspneOj48c0s zWA74slZ2llY7g8eavfqIL9oIspnf7hqTqu9Pt5/F0+AsKRbGzeXu79du w==; X-CSE-ConnectionGUID: xanQyDsOS9evgyiovB7ypw== X-CSE-MsgGUID: ipF7CrQXQZSXD+3ltr2q7A== X-IronPort-AV: E=McAfee;i="6700,10204,11411"; a="64367658" X-IronPort-AV: E=Sophos;i="6.15,232,1739865600"; d="scan'208";a="64367658" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Apr 2025 20:04:32 -0700 X-CSE-ConnectionGUID: NarXM0pITRmgBVABl2lQcw== X-CSE-MsgGUID: 1yby85Y+QdGLC+kUHAdMfg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,232,1739865600"; d="scan'208";a="132720793" Received: from liuzhao-optiplex-7080.sh.intel.com (HELO localhost) ([10.239.160.39]) by orviesa007.jf.intel.com with ESMTP; 22 Apr 2025 20:04:30 -0700 Date: Wed, 23 Apr 2025 11:25:24 +0800 From: Zhao Liu To: Xiaoyao Li Cc: Paolo Bonzini , Daniel =?iso-8859-1?Q?P=2E_Berrang=E9?= , "Michael S. Tsirkin" , Markus Armbruster , Francesco Lavra , Marcelo Tosatti , qemu-devel@nongnu.org, Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Rick Edgecombe Subject: Re: [PATCH v8 15/55] i386/tdx: Implement user specified tsc frequency Message-ID: References: <20250401130205.2198253-1-xiaoyao.li@intel.com> <20250401130205.2198253-16-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250401130205.2198253-16-xiaoyao.li@intel.com> Received-SPF: pass client-ip=198.175.65.10; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -47 X-Spam_score: -4.8 X-Spam_bar: ---- X-Spam_report: (-4.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.411, 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_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Tue, Apr 01, 2025 at 09:01:25AM -0400, Xiaoyao Li wrote: > Date: Tue, 1 Apr 2025 09:01:25 -0400 > From: Xiaoyao Li > Subject: [PATCH v8 15/55] i386/tdx: Implement user specified tsc frequency > X-Mailer: git-send-email 2.34.1 > > Reuse "-cpu,tsc-frequency=" to get user wanted tsc frequency and call VM > scope VM_SET_TSC_KHZ to set the tsc frequency of TD before KVM_TDX_INIT_VM. > > Besides, sanity check the tsc frequency to be in the legal range and > legal granularity (required by TDX module). > > Signed-off-by: Xiaoyao Li > Acked-by: Gerd Hoffmann > --- > Changes in v3: > - use @errp to report error info; (Daniel) > > Changes in v1: > - Use VM scope VM_SET_TSC_KHZ to set the TSC frequency of TD since KVM > side drop the @tsc_khz field in struct kvm_tdx_init_vm > --- > target/i386/kvm/kvm.c | 9 +++++++++ > target/i386/kvm/tdx.c | 25 +++++++++++++++++++++++++ > 2 files changed, 34 insertions(+) Reviewed-by: Zhao Liu