diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-05-11 22:12:59 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2022-05-11 22:12:59 +0300 |
| commit | 8e432bb015b6c327d016b1dca509964e189c4770 (patch) | |
| tree | 500ed0764fa8143885653368db0625470d3e42b8 /Documentation/driver-api/vfio-mediated-device.rst | |
| parent | 0a58795647cd4300470788ffdbff6b29b5f00632 (diff) | |
| download | linux-8e432bb015b6c327d016b1dca509964e189c4770.tar.xz | |
vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. The struct vfio_device already
contains the group we need so this avoids complexity, extra refcountings,
and a confusing lifecycle model.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/3-v4-8045e76bf00b+13d-vfio_mdev_no_group_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'Documentation/driver-api/vfio-mediated-device.rst')
| -rw-r--r-- | Documentation/driver-api/vfio-mediated-device.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst index 784bbeb22adc..eded8719180f 100644 --- a/Documentation/driver-api/vfio-mediated-device.rst +++ b/Documentation/driver-api/vfio-mediated-device.rst @@ -262,10 +262,10 @@ Translation APIs for Mediated Devices The following APIs are provided for translating user pfn to host pfn in a VFIO driver:: - extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, + int vfio_pin_pages(struct vfio_device *device, unsigned long *user_pfn, int npage, int prot, unsigned long *phys_pfn); - extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, + int vfio_unpin_pages(struct vfio_device *device, unsigned long *user_pfn, int npage); These functions call back into the back-end IOMMU module by using the pin_pages |