From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) (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 7410330E846; Mon, 12 Jan 2026 06:57:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768201050; cv=none; b=jlGWoOm7JFSUVgsSCd3v0jn8Hi0mot1uUb0B0JhlzWvUX+Sni5siia09yaOvQns44Ah8rBeZPzD4GYF7rAE3nkKgtj3dXYCtHjKeL9eDF3Ap88AjZMhEKRDNAjlBbxbyY1lpUOD/JF+w1mg2/X2uBX+tU/PZt31DffH0VAWoCtM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768201050; c=relaxed/simple; bh=Y+CKsY8ozRxqCtRq+eeYgn3o+J/olhPv8FM0d4eUp64=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=IZv0fBJ4ClRA6ZZBs9FRKtad7VmSP7bl6pZnRpm6hwBE6v9j86qTnzAJXJ1o/rgmdb2qEDd9BeylI1Eh9WrdlrKdWYXPCtZGrajU2gjF/1r/kqJMP/i8boCARhCcg2kiPbL3hzgdjqFEeHfkFbKO/JJRAtPdwAZXNaowzyRFO1g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Y78Cdpwr; arc=none smtp.client-ip=192.198.163.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass 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="Y78Cdpwr" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1768201050; x=1799737050; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Y+CKsY8ozRxqCtRq+eeYgn3o+J/olhPv8FM0d4eUp64=; b=Y78CdpwrjNc5bhGDwTMY99O5BxUPfiFkJ00vYVIbG1pTzAKvLlhgySSJ /IdPC2i1XIJ2MQm+0coSnfqLDvVZa/Wf4PZw8s/jUTBDpwKSVGdNJM8Wc EtU/5i7dTo3uD61rU2SWxAaBGt9bHl1P+0fzCRwSKeCif7C4AtmEAuheO 1LIDz7KIHMhty0qF+mAiXps74dTRc6hNjhq/fqZfRI2TRslGS7hIYgmJ/ K6eQIjWgtXqN5JkCFFfr3LuYBKVo5pX3g6pkaE+oetecLgKxZryk+9Oi4 dMVnLkvoQc7o1G6KmNd1pizr0ACqK2zTqU0XK7M24UGXojG7r7yHnyerE w==; X-CSE-ConnectionGUID: FOvaex0jSbm/qm6alnKhxw== X-CSE-MsgGUID: /uLgtp3XTme/Sooatzn54A== X-IronPort-AV: E=McAfee;i="6800,10657,11668"; a="69547299" X-IronPort-AV: E=Sophos;i="6.21,219,1763452800"; d="scan'208";a="69547299" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2026 22:57:29 -0800 X-CSE-ConnectionGUID: HO7kVFxARhOyVCLZUGBmrQ== X-CSE-MsgGUID: i/tOWdsKTC6wJf+vpDrMEg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,219,1763452800"; d="scan'208";a="203927150" Received: from allen-sbox.sh.intel.com (HELO [10.239.159.30]) ([10.239.159.30]) by fmviesa006-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2026 22:57:25 -0800 Message-ID: Date: Mon, 12 Jan 2026 14:57:34 +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 Subject: Re: [PATCH 0/3] iommu/vt-d: Add support to hitless replace IOMMU domain To: Jason Gunthorpe , Samiullah Khawaja Cc: David Woodhouse , Joerg Roedel , Will Deacon , Pasha Tatashin , David Matlack , Robin Murphy , Pratyush Yadav , Kevin Tian , Alex Williamson , Shuah Khan , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Saeed Mahameed , Adithya Jayachandran , Parav Pandit , Leon Romanovsky , William Tu References: <20260107201800.2486137-1-skhawaja@google.com> <20260107202812.GD340082@ziepe.ca> <20260107204607.GE340082@ziepe.ca> <20260111221440.GA745888@ziepe.ca> Content-Language: en-US From: Baolu Lu In-Reply-To: <20260111221440.GA745888@ziepe.ca> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/12/26 06:14, Jason Gunthorpe wrote: >> Thank you for the feedback. I will prepare a v2 series addressing these points. > I think there are so many problems here you should talk to Kevin and > Baolu to come up with some plan. A single series is not going to be > able to do all of this. Yes, absolutely. I am working on a patch series to address the fundamental atomicity issue. I hope to post it for discussion soon. Once that is addressed, we can discuss any additional problems. Thanks, baolu