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 98EABC433F5 for ; Tue, 18 Jan 2022 13:36:04 +0000 (UTC) Received: from localhost ([::1]:53300 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n9oeZ-0004sj-DY for qemu-devel@archiver.kernel.org; Tue, 18 Jan 2022 08:36:03 -0500 Received: from eggs.gnu.org ([209.51.188.92]:32820) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9nyr-00028N-66 for qemu-devel@nongnu.org; Tue, 18 Jan 2022 07:52:58 -0500 Received: from [2a00:1450:4864:20::331] (port=40621 helo=mail-wm1-x331.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n9nyo-00062H-LG for qemu-devel@nongnu.org; Tue, 18 Jan 2022 07:52:55 -0500 Received: by mail-wm1-x331.google.com with SMTP id 25-20020a05600c231900b003497473a9c4so5515789wmo.5 for ; Tue, 18 Jan 2022 04:52:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=No3OeGy2Dg+3OezDTl9QFHVXdYq4FobJ4DmJ7y1ibFw=; b=jtF3kVXMA7jzFke3QQWjs+/gv8ZorWIDnTD5XJldhmukpW99h7V6/vumzvOtr/MIig 8X72T+EGVJ5p4pyqr2NgqlnYYV/haO7uGItZfv+e5OEWxAGuTWe/IV2VKMHeaR/Tn5Uw G2FBVmrhKT1f3U8Kpp5YBzJnVwWoKKyDD4EqWtmj1jaawv4Ml5BxCvXeXcd1lcf3wA9y V0kJ/WibQMJR0oMFnyHpI8JtCDfxszplMZnIbEF4SUeTmx+AVouFb21fa+B96CZmXgAk 2b2kNMYO9zK6hPwI57JPD79zZydm5BcEK2aTv3wtzOoc+q1tqjxz1Av8OWt/Ar7HHVOR UUvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:message-id:date:mime-version:user-agent :subject:content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=No3OeGy2Dg+3OezDTl9QFHVXdYq4FobJ4DmJ7y1ibFw=; b=LMW0cKa8OJusQgGU4XdPOv/17iLEIUSGqYzuC2gKI8B+BZDBQgPyxXGbZ9geOlYREi 0X52Miy5r7Vk735nUDycY1vC5XtBiQI2mKl8Z3FK9bYiRfNwHhCRYYevBWWyxX94M8aR tdM3z9yGMWBEZyowzZwV+uBWe/qi7sKgXc0pkQyza2K9yGWs3OREYydDyO8SudYEz3X2 ySvc6wnNvrTHp2oEGycyEQsS0TLgbJFdm7lVlGASUwTQ0kyJD11AWi2MnVNlRrTIREIP +xhlcbbJOcffCx+gGIFgBL5nIhXfUQ4eBUS1M+1ZLnYzjFl27OT8TheMSkiCYPDjgyhh Y02w== X-Gm-Message-State: AOAM533BEGggFVrwCg4VrRHqfsnZOVLlR9x/DMBeRv9Wn84FwH1QtVPE VWUr4nX8lPK9azRADqBqvwc= X-Google-Smtp-Source: ABdhPJzxGn9nMExEpEh4cbKJH04upNOpg00U8m8+tFbZtru8W++PdgXzGD7oGawKDPnIbsRWxPhLGg== X-Received: by 2002:a7b:cb58:: with SMTP id v24mr24861539wmj.135.1642510372478; Tue, 18 Jan 2022 04:52:52 -0800 (PST) Received: from ?IPV6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.googlemail.com with ESMTPSA id e4sm7508197wrq.63.2022.01.18.04.52.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Jan 2022 04:52:52 -0800 (PST) Message-ID: Date: Tue, 18 Jan 2022 13:52:51 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [RFC PATCH 4/7] x86: Add XFD faulting bit for state components Content-Language: en-US To: Yang Zhong , qemu-devel@nongnu.org References: <20220107093134.136441-1-yang.zhong@intel.com> <20220107093134.136441-5-yang.zhong@intel.com> From: Paolo Bonzini In-Reply-To: <20220107093134.136441-5-yang.zhong@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::331 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::331; envelope-from=paolo.bonzini@gmail.com; helo=mail-wm1-x331.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.248, NICE_REPLY_A=-0.001, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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: , Cc: seanjc@google.com, kevin.tian@intel.com, jing2.liu@linux.intel.com, wei.w.wang@intel.com, guang.zeng@intel.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 1/7/22 10:31, Yang Zhong wrote: > - uint32_t need_align; > + uint32_t need_align, support_xfd; These can be replaced by a single field "uint32_t ecx". You can add also macros like #define ESA_FEATURE_ALIGN64_BIT (1) #define ESA_FEATURE_XFD_BIT (2) to simplify access. Paolo