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bh=8ChIloslXbwzx5SwJ9bus+C0aUz+/NJpBANblR8W7fg=; b=aW0I0jeKQS6HM0MHRPK32NGkkVolRKOBw2+xCti8LRBM/3aLocGTlkQymHO08Cyal0tG/B m3m/r+SyoPdODVYRoPiVxQx+bIOBb8XuvyAZuGxq2mR9GdNu4LBYK1ckSjW32J8ZEdpfFg nzpExf3/nM+xIKkya65fxI5+8WUpaSI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-595-t4SPsqyeOeigr2XXlRbw_Q-1; Thu, 15 Oct 2020 12:15:31 -0400 X-MC-Unique: t4SPsqyeOeigr2XXlRbw_Q-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1941412C6C1; Thu, 15 Oct 2020 16:15:30 +0000 (UTC) Received: from [10.36.113.210] (ovpn-113-210.ams2.redhat.com [10.36.113.210]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1533E100238E; Thu, 15 Oct 2020 16:15:18 +0000 (UTC) Subject: Re: [RFC 0/5] NVMe passthrough: Support 64kB page host To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , eric.auger.pro@gmail.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, stefanha@redhat.com, fam@euphon.net, alex.williamson@redhat.com References: <20201015115252.15582-1-eric.auger@redhat.com> <0a1ae4dd-064b-49c5-0669-04219646f616@redhat.com> From: Auger Eric Message-ID: Date: Thu, 15 Oct 2020 18:15:16 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <0a1ae4dd-064b-49c5-0669-04219646f616@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eric.auger@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/15 02:38:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.019, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, mreitz@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi Philippe, On 10/15/20 3:49 PM, Philippe Mathieu-Daudé wrote: > On 10/15/20 1:52 PM, Eric Auger wrote: >> This series allows NVMe passthrough on aarch64 with 64kB page host. >> Addresses and sizes of buffers which are VFIO DMA mapped are >> aligned with the host page size. >> >> nvme_register_buf() path is taken care of in this series >> but it does not seem to prevent the use case from working. >> >> Best Regards >> >> Eric >> >> This series can be found at: >> https://github.com/eauger/qemu/tree/nvme_64k_rfc >> >> This was tested on ARM only. >> >> Eric Auger (5): >>    block/nvme: use some NVME_CAP_* macros >>    block/nvme: Change size and alignment of IDENTIFY response buffer >>    block/nvme: Change size and alignment of queue >>    block/nvme: Change size and alignment of prp_list_pages >>    block/nvme: Align iov's va and size on host page size > > Since it is easier for me to rebase on top of your series, > I'm including it in my work (fixing the checkpatch errors) > and will repost block/nvme/ patches altogether. There should be one warning (line exceeding 80 chars) but no error. I can easily rebase/respin if you prefer. Thanks Eric > > Regards, > > Phil. > >