From 73fa0d10d077d9521ee2dace2307ae2c9a965336 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Tue, 31 Jul 2012 08:16:23 -0600 Subject: 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 --- drivers/vfio/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/vfio/Kconfig') 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. -- cgit