From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) (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 78EB2224D4; Mon, 6 Jan 2025 02:52:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736131963; cv=none; b=uy8wSAtiRfG4IaL73tq+7TKJzo9sM6g/34WlcYBAc9zjhzo0+UHfNJ0ls7t4FMOiKg6qTTQlg8mIoQ4R/Rga8Mu5+WlMZaJoDRYqykFjX/4pVUabao3TeTX4UnS4MNBI0CnJ7BEmeb4+VrN5xmJLTBI3fWPYRe6AWOu1mS2UvWY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736131963; c=relaxed/simple; bh=YlzyZ5VRctbcN5/cUfhWSOqbXSF88B8tOI+3HQdqnUQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=efyP9thl5Qc98EOS6RiK2jertcJKMJF0YyfjVAtHObNqUhWurRRYcf9DWfsPkAgSYAoSBM7KN1xeb23pNds7Ao3NAPlx7cQOB3Y+1Su9mTDPdajc4oH0krhNMDQJjzvqGjm/7rY9cWCrpygcsWps4njnQ8HIwMaNWhivmIYM3kY= 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=esKguS4I; arc=none smtp.client-ip=192.198.163.18 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="esKguS4I" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1736131962; x=1767667962; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=YlzyZ5VRctbcN5/cUfhWSOqbXSF88B8tOI+3HQdqnUQ=; b=esKguS4IGyyUBgDpIkRgt9SnLDYQRz0H56sEAHpJ864Qx4lMpl5lEyDd AJWfhEo6J8NBjQIMwX+XGYmOCA7AHtHBJf7jfIK1irz/xQTWUABvgYs7h FeQXv/fvz7ciXzAxrN6s5/Wsr0zd0TA0hBeNqUeUrKw8Sboqt/JETG3qN mwVs9R7khO5/NvqMM12F9DDj+g2o7HFI0uwi0/pP+/IvsMttLA/7DJYJ7 b8TZbqv5Wyc3Y0oePHQ/oZCl2LwwQGinBSFhus5kIHQPwm7rtl4sKxWhm 72asNJAQwC6VBTGBVodTLYv/UrDrCVVam6lUcLJDJAbmPJdoRsTCBs0at w==; X-CSE-ConnectionGUID: r0uqZ33jQ32sw3dGfz63gA== X-CSE-MsgGUID: OqINFr5ZQ9OR7Z4KHQ20kQ== X-IronPort-AV: E=McAfee;i="6700,10204,11306"; a="35575011" X-IronPort-AV: E=Sophos;i="6.12,292,1728975600"; d="scan'208";a="35575011" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2025 18:52:41 -0800 X-CSE-ConnectionGUID: M3d25IsrRq+MSMFKSrI+gA== X-CSE-MsgGUID: fVeYsa7nREWJXtqMK1sngA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,224,1728975600"; d="scan'208";a="103191699" Received: from allen-sbox.sh.intel.com (HELO [10.239.159.30]) ([10.239.159.30]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Jan 2025 18:52:36 -0800 Message-ID: Date: Mon, 6 Jan 2025 10:50:31 +0800 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 06/14] iommufd: Add IOMMUFD_OBJ_VEVENTQ and IOMMUFD_CMD_VEVENTQ_ALLOC To: Nicolin Chen , jgg@nvidia.com, kevin.tian@intel.com, corbet@lwn.net, will@kernel.org Cc: joro@8bytes.org, suravee.suthikulpanit@amd.com, robin.murphy@arm.com, dwmw2@infradead.org, shuah@kernel.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, eric.auger@redhat.com, jean-philippe@linaro.org, mdf@kernel.org, mshavit@google.com, shameerali.kolothum.thodi@huawei.com, smostafa@google.com, ddutile@redhat.com, yi.l.liu@intel.com, patches@lists.linux.dev References: Content-Language: en-US From: Baolu Lu In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/4/25 03:43, Nicolin Chen wrote: > Introduce a new IOMMUFD_OBJ_VEVENTQ object for vIOMMU Event Queue that > provides user space (VMM) another FD to read the vIOMMU Events. > > Allow a vIOMMU object to allocate vEVENTQs, with a condition that each > vIOMMU can only have one single vEVENTQ per type. > > Add iommufd_veventq_alloc() with iommufd_veventq_ops for the new ioctl. > > Signed-off-by: Nicolin Chen > --- > drivers/iommu/iommufd/iommufd_private.h | 58 +++++++++++ > include/linux/iommufd.h | 3 + > include/uapi/linux/iommufd.h | 31 ++++++ > drivers/iommu/iommufd/eventq.c | 129 ++++++++++++++++++++++++ > drivers/iommu/iommufd/main.c | 7 ++ > drivers/iommu/iommufd/viommu.c | 2 + > 6 files changed, 230 insertions(+) Reviewed-by: Lu Baolu