diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 14:05:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-03 14:05:02 -0700 |
| commit | d0cb5f71c5cde8e1ef6d03983641366800ceabdb (patch) | |
| tree | 893fcbb069bb255cf320b4e4c61a0515d02c4bed /include | |
| parent | a372c967a38a789caf52d4b1d2a78781e1b25d91 (diff) | |
| parent | 4379d2ae152860e023b42257fd60b5e235047f63 (diff) | |
Merge tag 'vfio-v3.15-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
"VFIO updates for v3.15 include:
- Allow the vfio-type1 IOMMU to support multiple domains within a
container
- Plumb path to query whether all domains are cache-coherent
- Wire query into kvm-vfio device to avoid KVM x86 WBINVD emulation
- Always select CONFIG_ANON_INODES, vfio depends on it (Arnd)
The first patch also makes the vfio-type1 IOMMU driver completely
independent of the bus_type of the devices it's handling, which
enables it to be used for both vfio-pci and a future vfio-platform
(and hopefully combinations involving both simultaneously)"
* tag 'vfio-v3.15-rc1' of git://github.com/awilliam/linux-vfio:
vfio: always select ANON_INODES
kvm/vfio: Support for DMA coherent IOMMUs
vfio: Add external user check extension interface
vfio/type1: Add extension to test DMA cache coherence of IOMMU
vfio/iommu_type1: Multi-IOMMU domain support
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/vfio.h | 2 | ||||
| -rw-r--r-- | include/uapi/linux/vfio.h | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h index 24579a0312a..81022a52bc3 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -96,5 +96,7 @@ extern void vfio_unregister_iommu_driver( extern struct vfio_group *vfio_group_get_external_user(struct file *filep); extern void vfio_group_put_external_user(struct vfio_group *group); extern int vfio_external_user_iommu_id(struct vfio_group *group); +extern long vfio_external_check_extension(struct vfio_group *group, + unsigned long arg); #endif /* VFIO_H */ diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h index 0fd47f5bc14..cb9023d4f06 100644 --- a/include/uapi/linux/vfio.h +++ b/include/uapi/linux/vfio.h @@ -23,6 +23,12 @@ #define VFIO_TYPE1_IOMMU 1 #define VFIO_SPAPR_TCE_IOMMU 2 +#define VFIO_TYPE1v2_IOMMU 3 +/* + * IOMMU enforces DMA cache coherence (ex. PCIe NoSnoop stripping). This + * capability is subject to change as groups are added or removed. + */ +#define VFIO_DMA_CC_IOMMU 4 /* * The IOCTL interface is designed for extensibility by embedding the |