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Wed, 19 Feb 2025 14:49:11 +0000 From: John Levon To: qemu-devel@nongnu.org Cc: Jason Herne , Thanos Makatos , Halil Pasic , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eric Farman , Tony Krowiak , Thomas Huth , qemu-s390x@nongnu.org, Matthew Rosato , John Levon , Paolo Bonzini , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Stefano Garzarella , Alex Williamson , David Hildenbrand , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Peter Xu , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , "Michael S. Tsirkin" Subject: [PATCH v8 00/28] vfio-user client Date: Wed, 19 Feb 2025 15:48:30 +0100 Message-Id: <20250219144858.266455-1-john.levon@nutanix.com> X-Mailer: git-send-email 2.34.1 X-ClientProxiedBy: AM0PR02CA0154.eurprd02.prod.outlook.com (2603:10a6:20b:28d::21) To CH2PR02MB6760.namprd02.prod.outlook.com (2603:10b6:610:7f::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR02MB6760:EE_|CH3PR02MB10559:EE_ X-MS-Office365-Filtering-Correlation-Id: 6b251dae-6a7f-45e8-ddfa-08dd50f4924a x-proofpoint-crosstenant: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|366016|376014|7416014; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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envelope-from=john.levon@nutanix.com; helo=mx0b-002c1b01.pphosted.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.191, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 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 This is the 8th revision of the vfio-user client implementation. The vfio-user protocol allows for implementing (PCI) devices in another userspace process; SPDK is one example, which includes a virtual NVMe implementation. The vfio-user framework consists of 3 parts: 1) The VFIO user protocol specification. 2) A client - the VFIO device in QEMU that encapsulates VFIO messages and sends them to the server. 3) A server - a remote process that emulates a device. This patchset implements parts 1 and 2. It has been tested against libvfio-user test servers as well as SPDK. Thanks for previous reviews & comments. Changes since v7: - split up pci patches for easier reviewing - fixed lots of device ops error handling - vfio-user code now in hw/vfio-user - improved commit messages - various other small cleanups Jagannathan Raman (20): vfio/container: pass MemoryRegion to DMA operations vfio: add region cache vfio: split out VFIOKernelPCIDevice vfio: add device IO ops vector vfio-user: add vfio-user class and container vfio-user: connect vfio proxy to remote server vfio-user: implement message receive infrastructure vfio-user: implement message send infrastructure vfio-user: implement VFIO_USER_DEVICE_GET_INFO vfio-user: implement VFIO_USER_DEVICE_GET_REGION_INFO vfio-user: implement VFIO_USER_REGION_READ/WRITE vfio-user: set up PCI in vfio_user_pci_realize() vfio-user: implement VFIO_USER_DEVICE_GET/SET_IRQ* vfio-user: forward MSI-X PBA BAR accesses to server vfio-user: set up container access to the proxy vfio-user: implement VFIO_USER_DEVICE_RESET vfio-user: implement VFIO_USER_DMA_READ/WRITE vfio-user: add 'no-direct-dma' option vfio-user: add 'x-msg-timeout' option vfio-user: add coalesced posted writes John Levon (7): vfio/container: pass listener_begin/commit callbacks vfio/container: support VFIO_DMA_UNMAP_FLAG_ALL vfio: add vfio_attach_device_by_iommu_type() vfio: add vfio_prepare_device() vfio: refactor out vfio_interrupt_setup() vfio: refactor out vfio_pci_config_setup() vfio-user: implement VFIO_USER_DMA_MAP/UNMAP Thanos Makatos (1): vfio-user: introduce vfio-user protocol specification MAINTAINERS | 10 +- docs/devel/index-internals.rst | 1 + docs/devel/vfio-user.rst | 1522 ++++++++++++++++++++++ hw/meson.build | 1 + hw/vfio-user/common.c | 1702 +++++++++++++++++++++++++ hw/vfio-user/common.h | 123 ++ hw/vfio-user/container.c | 358 ++++++ hw/vfio-user/container.h | 24 + hw/vfio-user/meson.build | 10 + hw/vfio-user/pci.c | 443 +++++++ hw/vfio-user/protocol.h | 243 ++++ hw/vfio-user/trace-events | 18 + hw/vfio-user/trace.h | 1 + hw/vfio/ap.c | 4 +- hw/vfio/ccw.c | 9 +- hw/vfio/common.c | 137 +- hw/vfio/container-base.c | 8 +- hw/vfio/container.c | 78 +- hw/vfio/helpers.c | 185 ++- hw/vfio/igd.c | 8 +- hw/vfio/iommufd.c | 31 +- hw/vfio/pci.c | 591 +++++---- hw/vfio/pci.h | 34 +- hw/vfio/platform.c | 4 +- hw/virtio/vhost-vdpa.c | 2 +- include/exec/memory.h | 4 +- include/hw/vfio/vfio-common.h | 45 +- include/hw/vfio/vfio-container-base.h | 11 +- meson.build | 1 + meson_options.txt | 2 + scripts/meson-buildoptions.sh | 4 + system/memory.c | 7 +- 32 files changed, 5281 insertions(+), 340 deletions(-) create mode 100644 docs/devel/vfio-user.rst create mode 100644 hw/vfio-user/common.c create mode 100644 hw/vfio-user/common.h create mode 100644 hw/vfio-user/container.c create mode 100644 hw/vfio-user/container.h create mode 100644 hw/vfio-user/meson.build create mode 100644 hw/vfio-user/pci.c create mode 100644 hw/vfio-user/protocol.h create mode 100644 hw/vfio-user/trace-events create mode 100644 hw/vfio-user/trace.h