From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EE4B0157A72 for ; Thu, 30 Oct 2025 15:18:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761837496; cv=none; b=VifcHg4b+A2kiMNkr5w4gQFGlHdBDGK6Y5Cl0RWU2GACMJ68ir8kxWkUTkYB5lSm4dj3df4Gc/UusnG2P4VbGnIt0JWwYg6Bb48P6s0Ing/vSJjuhIrtgy50PA4itceRcH9e1H4cQFWTZ+7sbQ9upRDT+505IvivLV0t4hvWF0o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761837496; c=relaxed/simple; bh=VduxXOP15hvnXVLVHD1DZz+vUQBwNvjKz8GA04d6gnA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=W5XWGri5SuqG7olfjMfPHbdNz8iU0PsuauhECwIan3n8xWmWKJvX3vneq54pF5hhS1WkLN7sx5CTg0UChfE3jFJlhWasiwfFGqH/jZsQzrizZkOFU27hrryuHLCWa3/D4v6oZXvmMnPWSVlo12bnC1ZZoLs1cFpp8F1U+DvAKfU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=m01p9yUP; arc=none smtp.client-ip=198.175.65.18 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="m01p9yUP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1761837495; x=1793373495; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=VduxXOP15hvnXVLVHD1DZz+vUQBwNvjKz8GA04d6gnA=; b=m01p9yUP5evpNODAf+WkgymwnL/FbAgD6ILIh9ES9rtTp8+3pqWjPx4l u0ExD+I2iOSMe9WOJtAegVxSfJ3tIcvd92qKGEgdgQI/9Mgd6EYVqO80W D8L6NzjGwEmMeL+98WJq4d7pNHlHRaMf0C3K5IAE0ysbzJQSYNOAKGSlC q7/GVJndmae/IAKwB4Me5GVI5tsn5qrQvZBA99BBXoGgGz0FlYMqUZina 4Y4KcnYznXRwabY90KhIE5Xcqsj+P1ON0haC6G3qe7Sjhh9eAWGmpZ6dv 3mYUCy87NfndPaiGmqBbZygNa1XPhZQ3P9g4VnXWYZFBYBeoBuAciLpKj Q==; X-CSE-ConnectionGUID: 1DCQJluqRrqx61FenKWhsQ== X-CSE-MsgGUID: NxzoOW6YR1y++wCWN2LtjA== X-IronPort-AV: E=McAfee;i="6800,10657,11598"; a="64023817" X-IronPort-AV: E=Sophos;i="6.19,267,1754982000"; d="scan'208";a="64023817" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Oct 2025 08:18:09 -0700 X-CSE-ConnectionGUID: BKpDafh+SFqWINZpG9uYXQ== X-CSE-MsgGUID: fHZzOJB/SU2rlTrR2rLt/Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,267,1754982000"; d="scan'208";a="185862013" Received: from liuzhao-optiplex-7080.sh.intel.com (HELO localhost) ([10.239.160.39]) by fmviesa006.fm.intel.com with ESMTP; 30 Oct 2025 08:18:04 -0700 Date: Thu, 30 Oct 2025 23:40:16 +0800 From: Zhao Liu To: Xiaoyao Li Cc: Paolo Bonzini , Marcelo Tosatti , qemu-devel@nongnu.org, kvm@vger.kernel.org, Chao Gao , John Allen , Babu Moger , Mathias Krause , Dapeng Mi , Zide Chen , Chenyi Qiang , Farrah Chen Subject: Re: [PATCH v3 07/20] i386/cpu: Reorganize dependency check for arch lbr state Message-ID: References: <20251024065632.1448606-1-zhao1.liu@intel.com> <20251024065632.1448606-8-zhao1.liu@intel.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: > Before this patch, if pmu is enabled and ARCH_LBR is configured, the leaf > (0xd, 0xf) is constructed by > > x86_cpu_get_supported_cpuid() > > after this patch, it's constructed to > > *eax = esa->size; > *ebx = 0; > *ecx = 1; Ah, there should be another 2 cases which need refactor/cleanup: * fill all registers with info from x86_ext_save_areas * fill info of x86_ext_save_areas from x86_cpu_get_supported_cpuid() Regards, Zhao