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 35AD1CA0FE8 for ; Mon, 25 Aug 2025 14:23:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uqY58-0006zU-PQ; Mon, 25 Aug 2025 10:21:58 -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 1uqY56-0006y9-BT for qemu-devel@nongnu.org; Mon, 25 Aug 2025 10:21:56 -0400 Received: from mgamail.intel.com ([192.198.163.14]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uqY4s-00009B-Ra for qemu-devel@nongnu.org; Mon, 25 Aug 2025 10:21:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1756131703; x=1787667703; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=soHQT2XDSKmb9Ao5/45S7jWsuFcQiY3vokX8Xm3zERU=; b=aJ/iFY4RT1AHJU4tPZG0el9sQ6qxCRjkBjYfeeICedoDqoCSiWMAFfTD ATlqP5kL/IJdnBNHQ7XSug6r1mrY7vbl4CSX5kC0reCaBKGzzNSPg/oNf Cad0Njh4LvqXOyD3S9xyL5jojjs0Z4wbe0h3ASatTvqWZnpdL6pZC9YkD vzRCa1duzjwpfVWGZ5onZrMEARiTue69q4MNqSf4XmUef6EPj4oa6OhKv em5pxmCydyGTJh6EgQIkt7UYbpm+/Fce5sc54wYmsb4pmmZww6210MSFz e6TsIe8F9camGeqRPVOmh2zreejeLjKhYtaCt7RAw8P8TfGzQzCK6ZjE8 w==; X-CSE-ConnectionGUID: DZhqrB64TjOhiIglYLWNSw== X-CSE-MsgGUID: tfjcEfAiTOGOiVIYAVYIyA== X-IronPort-AV: E=McAfee;i="6800,10657,11533"; a="58414310" X-IronPort-AV: E=Sophos;i="6.18,213,1751266800"; d="scan'208";a="58414310" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2025 07:21:32 -0700 X-CSE-ConnectionGUID: RRKdyBx4S+q+uHT1ClFI1w== X-CSE-MsgGUID: Gh+GC/ULTA+kpDvGEkJGnA== X-ExtLoop1: 1 Received: from liuzhao-optiplex-7080.sh.intel.com (HELO localhost) ([10.239.160.39]) by fmviesa003.fm.intel.com with ESMTP; 25 Aug 2025 07:21:30 -0700 Date: Mon, 25 Aug 2025 22:43:14 +0800 From: Zhao Liu To: Igor Mammedov Cc: qemu-devel@nongnu.org, Paolo Bonzini , Peter Xu , "Michael S. Tsirkin" , mtosatti@redhat.com Subject: Re: [PATCH v4 3/8] hpet: switch to fain-grained device locking Message-ID: References: <20250814160600.2327672-1-imammedo@redhat.com> <20250814160600.2327672-4-imammedo@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250814160600.2327672-4-imammedo@redhat.com> Received-SPF: pass client-ip=192.198.163.14; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_VALIDITY_CERTIFIED_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 Thu, Aug 14, 2025 at 06:05:55PM +0200, Igor Mammedov wrote: > Date: Thu, 14 Aug 2025 18:05:55 +0200 > From: Igor Mammedov > Subject: [PATCH v4 3/8] hpet: switch to fain-grained device locking > > as a step towards lock-less HPET counter read, > use per device locking instead of BQL. > > Signed-off-by: Igor Mammedov > Reviewed-by: Peter Xu > --- > hw/timer/hpet.c | 6 ++++++ > 1 file changed, 6 insertions(+) Reviewed-by: Zhao Liu