From 88d7ab8949427f492c39f6daf0ac67f0242a88bc Mon Sep 17 00:00:00 2001 From: Alex Williamson <alex.williamson@redhat.com> Date: Wed, 26 Feb 2014 11:38:39 -0700 Subject: vfio: Add external user check extension interface This lets us check extensions, particularly VFIO_DMA_CC_IOMMU using the external user interface, allowing KVM to probe IOMMU coherency. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> --- drivers/vfio/vfio.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/vfio') diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index 21271d8df023..512f479d8a50 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1413,6 +1413,12 @@ int vfio_external_user_iommu_id(struct vfio_group *group) } EXPORT_SYMBOL_GPL(vfio_external_user_iommu_id); +long vfio_external_check_extension(struct vfio_group *group, unsigned long arg) +{ + return vfio_ioctl_check_extension(group->container, arg); +} +EXPORT_SYMBOL_GPL(vfio_external_check_extension); + /** * Module/class support */ -- cgit v1.2.3