On Wed, 2012-07-25 at 08:53 -0600, Alex Williamson wrote: > Hi Linus, > > This series includes the VFIO userspace driver interface for the > 3.6 kernel merge window. This driver is intended to provide a > secure interface for device access using IOMMU protection for > applications like assignment of physical devices to virtual > machines. Qemu will be the first user of this interface, enabling > assignment of PCI devices to Qemu guests. This interface is > intended to eventually replace the x86-specific assignment mechanism > currently available in KVM. This interface has the advantage of > being more secure, by working with IOMMU groups to ensure device > isolation and providing it's own filtered resource access mechanism, > and also more flexible, in not being x86 or KVM specific (extensions > to enable POWER are already working). > > As a new driver, I'm including both the individual patches in email, > as well as a branch to pull from: > > git://github.com/awilliam/linux-vfio.git for-linus > > This driver is originally the work of Tom Lyon, but has since been > handed over to me and gone through a complete overhaul thanks to the > input from David Gibson, Ben Herrenschmidt, Chris Wright, Joerg > Roedel, and others. This driver has been available in linux-next for > the last month. Thanks, randconfig testing in next found a dependency issue that I've fix in the for-linus branch above. Change from v1 is: diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig index cc7db62..5980758 100644 --- a/drivers/vfio/pci/Kconfig +++ b/drivers/vfio/pci/Kconfig @@ -1,6 +1,6 @@ config VFIO_PCI tristate "VFIO support for PCI devices" - depends on VFIO && PCI + depends on VFIO && PCI && EVENTFD help Support for the PCI VFIO bus driver. This is required to make use of PCI drivers using the VFIO framework. If anyone wants a full resend of v2 to the list with this change, please let me know. Thanks, Alex > --- > > Alex Williamson (4): > vfio: Add PCI device driver > vfio: Type1 IOMMU implementation > vfio: Add documentation > vfio: VFIO core > > > Documentation/ioctl/ioctl-number.txt | 1 > Documentation/vfio.txt | 314 +++++++ > 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 | 579 +++++++++++++ > drivers/vfio/pci/vfio_pci_config.c | 1540 ++++++++++++++++++++++++++++++++++ > drivers/vfio/pci/vfio_pci_intrs.c | 740 ++++++++++++++++ > 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 | 753 +++++++++++++++++ > include/linux/vfio.h | 445 ++++++++++ > 17 files changed, 6194 insertions(+) > create mode 100644 Documentation/vfio.txt > create mode 100644 drivers/vfio/Kconfig > create mode 100644 drivers/vfio/Makefile > create mode 100644 drivers/vfio/pci/Kconfig > create mode 100644 drivers/vfio/pci/Makefile > create mode 100644 drivers/vfio/pci/vfio_pci.c > create mode 100644 drivers/vfio/pci/vfio_pci_config.c > create mode 100644 drivers/vfio/pci/vfio_pci_intrs.c > create mode 100644 drivers/vfio/pci/vfio_pci_private.h > create mode 100644 drivers/vfio/pci/vfio_pci_rdwr.c > create mode 100644 drivers/vfio/vfio.c > create mode 100644 drivers/vfio/vfio_iommu_type1.c > create mode 100644 include/linux/vfio.h -- 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
