From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 04C2C134AB for ; Tue, 18 Jun 2024 01:38:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718674685; cv=none; b=n7kIvCeyOLgFof6Lx0uWmXumX/SzdMrZwUD84emPVgMrLgjfVFnvzN3qg3Xrbe2gxu1Y+C74UwEv+NAueAvfqOqpJg6EB17YTRV0A8Y6Nlc4ZbOm3Lkv6xaRMJs8GtpGMImQMa35de8OPZfJKUF7lWzO+E+U5xf4M8uIHWlyDgs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718674685; c=relaxed/simple; bh=4SfRuGLXuOtfgs+VhCcT8scU2Nzh8VcPuJvjNReQd84=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=FsBM7cQFmqK6NmDsDVDiyELJKv+6ZiSFju8wefdI8lIU3Dj/bffxyO1ZEZj3rrjUVVNk5wopCNs54GkU6FdZbsvs8r/q2j7LYZgxkhg1rTQUsb4ypcgOdfARABn3Wi1ROMUnhUZqKKIzlHniAS2T3YMApyBbsO0HCHqAnR+xGc0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=lI0yUzCH; arc=none smtp.client-ip=192.198.163.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="lI0yUzCH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1718674684; x=1750210684; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=4SfRuGLXuOtfgs+VhCcT8scU2Nzh8VcPuJvjNReQd84=; b=lI0yUzCHVwEuF+BzJJIs5kDFHt+SKXTVzeF7RbvzHcRQl19Bz96zfxZx v6/zAGv5akfLG5V7EqFD4V/XFeOJlAx6pbL7xZj4d+PTmlJcC791MfGQz RS15ekdM36JNlW1M4qIIVe5mSvbkZTNt/T4f4RLMcdqzOyWmyHPS+YU/N 3FQtq+0BNdd/t2PqnQIs1R5l5l0hhhZpesF37PofiXeoQyeBSl7m/xX6s mNjnnHD1VgeFHz1sLqo383lk6sC6QfZTG7g8OBWpniQU5rOEj9m5lU+Q6 hYHT9bwVPaO5MKfRoGU1jJkZ8/xQCXo0/rtJv2v5Zlwc2WyTSUr1yQINQ w==; X-CSE-ConnectionGUID: HcwrOd9cTeuhmJG2imHwtg== X-CSE-MsgGUID: Ns1oVu7ZRgeXp5+tyyBp9A== X-IronPort-AV: E=McAfee;i="6700,10204,11106"; a="26158143" X-IronPort-AV: E=Sophos;i="6.08,246,1712646000"; d="scan'208";a="26158143" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jun 2024 18:38:03 -0700 X-CSE-ConnectionGUID: Ddl5w9urQ/iFSVCmAUcTRg== X-CSE-MsgGUID: kIYlmEebQyW7v5j/rRk+lg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,246,1712646000"; d="scan'208";a="41481150" Received: from unknown (HELO [10.239.159.127]) ([10.239.159.127]) by fmviesa010.fm.intel.com with ESMTP; 17 Jun 2024 18:38:00 -0700 Message-ID: Date: Tue, 18 Jun 2024 09:35:35 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: baolu.lu@linux.intel.com, "iommu@lists.linux.dev" , "virtualization@lists.linux-foundation.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v7 03/10] iommu: Add attach handle to struct iopf_group To: "Tian, Kevin" , Jason Gunthorpe , Joerg Roedel , Will Deacon , Robin Murphy , Jean-Philippe Brucker , Nicolin Chen , "Liu, Yi L" , Jacob Pan , Joel Granados References: <20240616061155.169343-1-baolu.lu@linux.intel.com> <20240616061155.169343-4-baolu.lu@linux.intel.com> Content-Language: en-US From: Baolu Lu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 6/17/24 3:41 PM, Tian, Kevin wrote: >> From: Lu Baolu >> Sent: Sunday, June 16, 2024 2:12 PM >> >> Add a new IOMMU capability flag, IOMMU_CAP_USER_IOASID_TABLE, which >> indicates if the IOMMU driver supports user-managed PASID tables. In the >> iopf deliver path, if no attach handle found for the iopf PASID, roll >> back to RID domain when the IOMMU driver supports this capability. >> > > above is stale. > Yes. "a new IOMMU capability flag, IOMMU_CAP_USER_IOASID_TABLE" should be changed to "a static flag in iommu ops". Best regards, baolu