Hi, VFIO has been kicking around for well over a year now and has been posted numerous times for review. The pre-requirements are finally available in linux-next (or will be in the 20120626 build) so I'd like to request a new branch be included in linux-next with a goal of being accepted into v3.6. VFIO is a userspace driver interface designed to support assignment of devices into virtual machines using IOMMU level access control. This IOMMU requirement, secure resource access, and flexible interrupt support make VFIO unique from existing drivers, like UIO. VFIO supports modular backends for both IOMMU and device access. Initial backends are included for PCI device assignment using the IOMMU API in a manner compatible with x86 device assignment. POWER support is also under development, making use of the same PCI device backend, but adding new IOMMU support for their platforms. As with previous versions of VFIO, Qemu is targeted as a primary user and a working development tree including vfio-pci support can be found here: git://github.com/awilliam/qemu-vfio.git iommu-group-vfio Eventually we hope VFIO can deprecate the x86, PCI-specific device assignment currently used by KVM. The info for linux-next: Tree: git://github.com/awilliam/linux-vfio.git Branch: next Contact: Alex Williamson <alex.williamson@xxxxxxxxxx> This branch should be applied after both Bjorn's PCI next branch and Joerg's IOMMU next branch and contains the following changes: Documentation/ioctl/ioctl-number.txt | 1 Documentation/vfio.txt | 315 +++++++ MAINTAINERS | 8 drivers/Kconfig | 2 drivers/Makefile | 1 drivers/vfio/Kconfig | 16 drivers/vfio/Makefile | 3 drivers/vfio/pci/Kconfig | 8 drivers/vfio/pci/Makefile | 4 drivers/vfio/pci/vfio_pci.c | 565 ++++++++++++ drivers/vfio/pci/vfio_pci_config.c | 1528 +++++++++++++++++++++++++++++++++++ drivers/vfio/pci/vfio_pci_intrs.c | 727 ++++++++++++++++ drivers/vfio/pci/vfio_pci_private.h | 91 ++ drivers/vfio/pci/vfio_pci_rdwr.c | 269 ++++++ drivers/vfio/vfio.c | 1420 ++++++++++++++++++++++++++++++++ drivers/vfio/vfio_iommu_type1.c | 754 +++++++++++++++++ include/linux/vfio.h | 445 ++++++++++ 17 files changed, 6157 insertions(+) If there are any objections to including this, please speak now. If anything looks amiss in the branch, let me know. I've never hosted a next branch. Review comments welcome and I'll be glad to post the series in email again if requested. Thanks, Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
