Greetings,
Patches to support Single Root I/O Virtualization (SR-IOV) capability are
available for the Linux 2.6 development tree.
KVM and Xen supports will come soon!
---
Single Root I/O Virtualization (SR-IOV) capability defined by PCI-SIG is
intended to enable multiple system software to share PCI hardware resources. PCI
device that supports this capability can be extended to one Physical Functions
plus multiple Virtual Functions. Physical Function, which could be considered as
the "real" PCI device, reflects the hardware instance and manages all
physical resources. Virtual Functions are associated with a Physical Function
and shares physical resources with the Physical Function. Software can control
allocation of Virtual Functions via registers encapsulated in the capability.
Following patches add SR-IOV capability support to the Linux kernel. With these
patches, people can turn a PCI device with the capability into multiple ones
from software perspective.
[PATCH 1/4] PCI: export pci_read_base and add pci_update_base
[PATCH 2/4] PCI: support ARI capability
[PATCH 3/4] PCI: support SR-IOV capability
[PATCH 4/4] PCI: document SR-IOV
SR-IOV specification can be found at
http://www.pcisig.com/members/downloads/specifications/iov/sr-iov1.0_11Sep07.pdf
