diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2014-02-26 19:38:39 +0100 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2014-02-26 19:38:39 +0100 |
| commit | 88d7ab8949427f492c39f6daf0ac67f0242a88bc (patch) | |
| tree | cfa7d27b7a59ff6ffe666374a19e08b2e5f1ee64 /drivers/vfio | |
| parent | vfio/type1: Add extension to test DMA cache coherence of IOMMU (diff) | |
| download | linux-88d7ab8949427f492c39f6daf0ac67f0242a88bc.tar.xz linux-88d7ab8949427f492c39f6daf0ac67f0242a88bc.zip | |
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>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/vfio.c | 6 |
1 files changed, 6 insertions, 0 deletions
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 */ |