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authorAlex Williamson <alex.williamson@redhat.com>2012-07-31 08:16:23 -0600
committerAlex Williamson <alex.williamson@redhat.com>2012-07-31 08:16:23 -0600
commit73fa0d10d077d9521ee2dace2307ae2c9a965336 (patch)
tree2c820b194dd8ea00f23d85c382e86ea6c3beb498 /drivers/vfio/Kconfig
parent4a5b2a20ec87384eeb19e70991e7e15a00cad87b (diff)
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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>
Diffstat (limited to 'drivers/vfio/Kconfig')
-rw-r--r--drivers/vfio/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
index 9acb1e729bd6..128b97910b8e 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.