vfio: Type1 IOMMU implementation
This VFIO IOMMU backend is designed primarily for AMD-Vi and Intel
VT-d hardware, but is potentially usable by anything supporting
similar mapping functionality. We arbitrarily call this a Type1
backend for lack of a better name. This backend has no IOVA
or host memory mapping restrictions for the user and is optimized
for relatively static mappings. Mapped areas are pinned into system
memory.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
index 9acb1e7..128b979 100644
--- a/drivers/vfio/Kconfig
+++ b/drivers/vfio/Kconfig
@@ -1,6 +1,12 @@
+config VFIO_IOMMU_TYPE1
+ tristate
+ depends on VFIO
+ default n
+
menuconfig VFIO
tristate "VFIO Non-Privileged userspace driver framework"
depends on IOMMU_API
+ select VFIO_IOMMU_TYPE1 if X86
help
VFIO provides a framework for secure userspace device drivers.
See Documentation/vfio.txt for more details.