From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 D57946139; Wed, 19 Jun 2024 07:07:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718780876; cv=none; b=rgWHKN2bz0RqqmCIPPfzpQii7PxYpNeJb/b4tNWD6PV1o/WJ3DCqy1c331cgpuYNYU0SYsN9RZG0z8/UtKMUmzncpS63zkfACRJcehqpYnePUnmSfclR6DNvKanU4nfdKf1+gyBr4cAMQZq9UQT+50zag7sVZHE+g8QErov/QsU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718780876; c=relaxed/simple; bh=Ct7KvPtTFdYsgUGp7gRvuzhTQI1YOAeOSuW3qmzAIWg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EMzfwKfg5Aymlp9J/tIssedHYB4Nj9M3Rz71FXe/zYLcVTivpRmVtxytybIq8oZyywXiGXKhTQbeMfBaI51NSnN74VlXtHWo2IblpiAMnxZqPsW8vsrATZ0oYjXgsYZtMljRPJ/wl59iQayPXKDe1pBkkq+WUgyXBCLCyTeCCZk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=3u4qcIt+; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="3u4qcIt+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=YYWyyacnBbefsfYbd1v/MxFdVPLfKcrl6epFLCWHzXs=; b=3u4qcIt+FNSHDbH93XFvYScy0Q OLAI90UP8gu+rfzQvgO3eVDmQgH7+gqyd0K4R8447zVMPHXaC6hFHmdEyiL4GvDssP/nTtsuje9BY FdZOoRJeyHWtvKKkH6UbnBmkSM/RlOd6BUexz3AEy71WtgAr/AACmQsKRM1hJl52vAOKvR+q6kBsc MxxIjI9+4qZZMALGXg9Dd15qmbQMp69WcIClPB91A8BM7qkwNnul0bAAKenu/rtUE2eGGiafnn9xt U3hHNhhQ8azYyZqo9nrTPxjyAzXc/Fuq2tWlml5LSbI4XglvWm8m3/eTPAAjAUMoQOFmuZ+BxB/zS gqejEQ7w==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sJpQ8-000000008dv-22EN; Wed, 19 Jun 2024 07:07:52 +0000 Date: Wed, 19 Jun 2024 00:07:52 -0700 From: Christoph Hellwig To: Shunsuke Mie Cc: Manivannan Sadhasivam , "Michael S. Tsirkin" , linux-pci@vger.kernel.org, virtualization@lists.linux.dev, jasowang@redhat.com, xuanzhuo@linux.alibaba.com Subject: Re: [RFC] Legacy Virtio Driver with Device Has Limited Memory Access Message-ID: References: <20240516125913.GC11261@thinkpad> <20240520090809-mutt-send-email-mst@kernel.org> <20240614095033.GA59574@thinkpad> Precedence: bulk X-Mailing-List: linux-pci@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Tue, Jun 18, 2024 at 08:41:09AM +0900, Shunsuke Mie wrote: > 3. Wait until the HW supports the modern spec: > This depends on the chip vendor. This is the only sensible option. It's not like modern virtio devices are a brand new thing.