[Qemu-devel] [PATCH v2 00/16] Vhost-pci for inter-VM communication

[Wei Wang <wei.w.wang@intel.com>]

This patch series implements vhost-pci, which is a point-to-point based
inter-vm communication solution. The QEMU side implementation includes the
vhost-user extension, vhost-pci device emulation and management, and inter-VM
notification.

v1->v2 changes:
1) inter-VM notification support;
2) vhost-pci-net ctrlq message format change;
3) patch re-org and code cleanup.

Wei Wang (16):
  vhost-user: share the vhost-user protocol related structures
  vl: add the vhost-pci-slave command line option
  vhost-pci-slave: create a vhost-user slave to support vhost-pci
  vhost-pci-net: add vhost-pci-net
  vhost-pci-net-pci: add vhost-pci-net-pci
  virtio: add inter-vm notification support
  vhost-user: send device id to the slave
  vhost-user: send guest physical address of virtqueues to the slave
  vhost-user: send VHOST_USER_SET_VHOST_PCI_START/STOP
  vhost-pci-net: send the negotiated feature bits to the master
  vhost-user: add asynchronous read for the vhost-user master
  vhost-user: handling VHOST_USER_SET_FEATURES
  vhost-pci-slave: add "reset_virtio"
  vhost-pci-slave: add support to delete a vhost-pci device
  vhost-pci-net: tell the driver that it is ready to send packets
  vl: enable vhost-pci-slave

 hw/net/Makefile.objs                           |   2 +-
 hw/net/vhost-pci-net.c                         | 364 +++++++++++++
 hw/net/vhost_net.c                             |  39 ++
 hw/virtio/Makefile.objs                        |   7 +-
 hw/virtio/vhost-pci-slave.c                    | 676 +++++++++++++++++++++++++
 hw/virtio/vhost-stub.c                         |  22 +
 hw/virtio/vhost-user.c                         | 192 +++----
 hw/virtio/vhost.c                              |  63 ++-
 hw/virtio/virtio-bus.c                         |  19 +-
 hw/virtio/virtio-pci.c                         |  96 +++-
 hw/virtio/virtio-pci.h                         |  16 +
 hw/virtio/virtio.c                             |  32 +-
 include/hw/pci/pci.h                           |   1 +
 include/hw/virtio/vhost-backend.h              |   2 +
 include/hw/virtio/vhost-pci-net.h              |  40 ++
 include/hw/virtio/vhost-pci-slave.h            |  64 +++
 include/hw/virtio/vhost-user.h                 | 110 ++++
 include/hw/virtio/vhost.h                      |   3 +
 include/hw/virtio/virtio.h                     |   2 +
 include/net/vhost-user.h                       |  22 +-
 include/net/vhost_net.h                        |   2 +
 include/standard-headers/linux/vhost_pci_net.h |  74 +++
 include/standard-headers/linux/virtio_ids.h    |   1 +
 net/vhost-user.c                               |  37 +-
 qemu-options.hx                                |   4 +
 vl.c                                           |  46 ++
 26 files changed, 1796 insertions(+), 140 deletions(-)
 create mode 100644 hw/net/vhost-pci-net.c
 create mode 100644 hw/virtio/vhost-pci-slave.c
 create mode 100644 include/hw/virtio/vhost-pci-net.h
 create mode 100644 include/hw/virtio/vhost-pci-slave.h
 create mode 100644 include/hw/virtio/vhost-user.h
 create mode 100644 include/standard-headers/linux/vhost_pci_net.h

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2.7.4