On Mon, 2012-06-25 at 22:55 -0600, Alex Williamson wrote: > 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.
Ack. Let's get that in, it's been simmering for too long and we'll need that to do PCI pass-through on KVM powerpc. Cheers, Ben. > 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.william...@redhat.com> > > 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 linux-pci" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
