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Tsirkin" , Hanna Reitz , qemu-block@nongnu.org, Paolo Bonzini , Marcel Apfelbaum , Laurent Vivier , Zhao Liu , Coiby Xu , Fabiano Rosas , Yanan Wang , Alberto Faria Subject: [RFC v2 0/4] virtio-blk: Add support for FUA write requests Date: Thu, 8 May 2025 17:20:40 +0100 Message-ID: <20250508162044.857655-1-afaria@redhat.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.129.124; envelope-from=afaria@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.416, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org There is a proposal to introduce virtio-blk fua write support to the virtio spec [1], and a matching kernel RFC [2]. This series implements the proposal by adding VIRTIO_BLK_{F,T}_OUT_FUA uapi definitions and corresponding virtio-blk, vhost-user-blk, and vduse-blk support. [1] https://lore.kernel.org/virtio-comment/20250507152602.3993258-1-afaria@redhat.com/ [2] https://lore.kernel.org/linux-block/20250508001951.421467-1-afaria@redhat.com/ v2: - Include missing hw/block/virtio-blk.c changes actually implementing VIRTIO_BLK_T_OUT_FUA support. Alberto Faria (4): include: Add tentative virtio-blk FUA write definitions virtio-blk: Add VIRTIO_BLK_T_OUT_FUA command support vhost-user-blk: Add VIRTIO_BLK_T_OUT_FUA command support vduse-blk: Add VIRTIO_BLK_T_OUT_FUA command support block/export/vduse-blk.c | 3 +- block/export/vhost-user-blk-server.c | 1 + block/export/virtio-blk-handler.c | 7 ++- contrib/vhost-user-blk/vhost-user-blk.c | 16 ++++-- hw/block/vhost-user-blk.c | 3 ++ hw/block/virtio-blk.c | 41 +++++++-------- hw/core/machine.c | 5 +- hw/virtio/virtio-qmp.c | 2 + include/hw/virtio/virtio-blk.h | 1 + include/standard-headers/linux/virtio_blk.h | 4 ++ tests/qtest/vhost-user-blk-test.c | 56 +++++++++++++++++++++ tests/qtest/virtio-blk-test.c | 56 +++++++++++++++++++++ 12 files changed, 168 insertions(+), 27 deletions(-) -- 2.49.0