Hi all,
This patch series introduces 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 v2;
- in host-pci-device.c:
- Return more usefull error code in get_ressource().
- Use macro in host_pci_find_ext_cap_offset instead of raw number. But I
still not sure if PCI_MAX_EXT_CAP is right, it's result is 480 like it
was before, so it's maybe ok.
- All use of MSI stuff in two first pci passthrough patch have been removed
and move to the last patch.
Change v1-v2:
- 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 | 25 +
hw/apic-msidef.h | 30 +
hw/apic.c | 11 +-
hw/host-pci-device.c | 252 ++++
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, 4850 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
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