[Qemu-devel] [PATCH V2 00/10] Xen PCI Passthrough

[Anthony PERARD <anthony.perard@citrix.com>]

Hi all,

This patch series introduce the PCI passthrough for Xen.

First, we have HostPCIDevice that help to access one PCI device of the host.

Then, there is an additions in the QEMU code, pci_check_bar_overlap.

There are also several change in pci_ids and pci_regs.

Last part, but not least, the PCI passthrough device himself. Cut in 3 parts
(or file), there is one to take care of the initialisation of a passthrough
device. The second one handle everything about the config address space, there
are specifics functions for every config register. The third one is to handle
MSI.

There is a patch series on xen-devel that add the support of setting a PCI
passthrough device through QMP from libxl (xen tool stack). It is just a call
to device_add, with the driver parametter hostaddr="0000:00:1b.0".

Change since the v1:
  - fix style issue (checkpatch.pl)
  - set the original authors, add some missing copyright headers
  - HostPCIDevice:
    - introduce HostPCIIORegions (with base_addr, size, flags)
    - save all flags from ./resource and store it in a separate field.
    - fix endianess on write
    - new host_pci_dev_put function
    - use pci.c like interface host_pci_get/set_byte/word/long (instead of
      host_pci_read/write_)
  - compile HostPCIDevice only on linux (as well as xen_pci_passthrough)
  - introduce apic-msidef.h file.
  - no more run_one_timer, if a pci device is in the middle of a power
    transition, just "return an error" in config read/write
  - use a global var mapped_machine_irq (local to xen_pci_passthrough.c)
  - add msitranslate and power-mgmt ad qdev property



Allen Kay (2):
  Introduce Xen PCI Passthrough, qdevice (1/3)
  Introduce Xen PCI Passthrough, PCI config space helpers (2/3)

Anthony PERARD (6):
  configure: Introduce --enable-xen-pci-passthrough.
  Introduce HostPCIDevice to access a pci device on the host.
  pci_ids: Add INTEL_82599_VF id.
  pci_regs: Fix value of PCI_EXP_TYPE_RC_EC.
  pci_regs: Add PCI_EXP_TYPE_PCIE_BRIDGE
  Introduce apic-msidef.h

Jiang Yunhong (1):
  Introduce Xen PCI Passthrough, MSI (3/3)

Yuji Shimada (1):
  pci.c: Add pci_check_bar_overlap

 Makefile.target                      |    7 +
 configure                            |   21 +
 hw/apic-msidef.h                     |   30 +
 hw/apic.c                            |   11 +-
 hw/host-pci-device.c                 |  245 ++++
 hw/host-pci-device.h                 |   75 +
 hw/pci.c                             |   47 +
 hw/pci.h                             |    3 +
 hw/pci_ids.h                         |    1 +
 hw/pci_regs.h                        |    3 +-
 hw/xen_pci_passthrough.c             |  861 ++++++++++++
 hw/xen_pci_passthrough.h             |  280 ++++
 hw/xen_pci_passthrough_config_init.c | 2553 ++++++++++++++++++++++++++++++++++
 hw/xen_pci_passthrough_helpers.c     |   46 +
 hw/xen_pci_passthrough_msi.c         |  667 +++++++++
 15 files changed, 4839 insertions(+), 11 deletions(-)
 create mode 100644 hw/apic-msidef.h
 create mode 100644 hw/host-pci-device.c
 create mode 100644 hw/host-pci-device.h
 create mode 100644 hw/xen_pci_passthrough.c
 create mode 100644 hw/xen_pci_passthrough.h
 create mode 100644 hw/xen_pci_passthrough_config_init.c
 create mode 100644 hw/xen_pci_passthrough_helpers.c
 create mode 100644 hw/xen_pci_passthrough_msi.c

-- 
Anthony PERARD