On 10/04/2011 04:51 PM, Anthony PERARD wrote:
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 are several additions in the QEMU code. One is qemu_run_one_timer
to run a specific timer. It is used by PCI passthrough to run a timer about
power management. Another is 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.
I'm still working on 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".
There is some minor things missing:
- copyright header
- PCI IO space multiplexer
We also have pci passthrough in qemu-kvm (I think based on the same
Neocleus code). Rather than having two pci assignment implementations,
I think we should have just one, with the differences (programming the
hypervisor) abstracted at that level.
--
error compiling committee.c: too many arguments to function
