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
--
2.34.1
