Peng Fan 9698cbf0be vfio: platform: support No-IOMMU mode ... The vfio No-IOMMU mode was supported by this 'commit 03a76b60f8 ("vfio: Include No-IOMMU mode")', but it only support vfio-pci. Using vfio_iommu_group_get/put, but not iommu_group_get/put, the platform devices can be exposed to userspace with CONFIG_VFIO_NOIOMMU and the "enable_unsafe_noiommu_mode" option enabled. From 'commit 03a76b60f8 ("vfio: Include No-IOMMU mode")', "This should make it very clear that this mode is not safe. Additionally, CAP_SYS_RAWIO privileges are necessary to work with groups and containers using this mode. Groups making use of this support are named /dev/vfio/noiommu-$GROUP and can only make use of the special VFIO_NOIOMMU_IOMMU for the container. Use of this mode, specifically binding a device without a native IOMMU group to a VFIO bus driver will taint the kernel and should therefore not be considered supported." Signed-off-by: Peng Fan <van.freenix@gmail.com> Cc: Eric Auger <eric.auger@linaro.org> Cc: Baptiste Reynal <b.reynal@virtualopensystems.com> Cc: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>		2016-06-23 09:37:17 -06:00
..
reset	VFIO: platform: reset: fix a warning message condition	2015-12-21 15:28:11 -07:00
Kconfig	VFIO: platform: enable ARM64 build	2015-06-22 09:35:47 -06:00
Makefile	vfio: platform: introduce vfio-platform-base module	2015-11-03 12:54:56 -07:00
vfio_amba.c	vfio: platform: introduce vfio-platform-base module	2015-11-03 12:54:56 -07:00
vfio_platform_common.c	vfio: platform: support No-IOMMU mode	2016-06-23 09:37:17 -06:00
vfio_platform_irq.c	VFIO: platform: clear IRQ_NOAUTOEN when de-assigning the IRQ	2015-10-27 15:02:53 -06:00
vfio_platform_private.h	vfio: platform: add dev_info on device reset	2015-11-03 12:55:05 -07:00
vfio_platform.c	vfio: Drop owner assignment from platform_driver	2015-11-19 15:52:08 -07:00