diff options
| author | Yi Liu <yi.l.liu@intel.com> | 2023-07-18 16:55:48 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2023-07-25 19:20:37 +0300 |
| commit | b290a05fd858281fcac6fe94ec76a46d5396b9e5 (patch) | |
| tree | c871953fc1920bb0ec9b2979d0a53541470fca5f /drivers/vfio/vfio.h | |
| parent | 5fcc26969a164e6a3154bb68badd6712716eb954 (diff) | |
| download | linux-b290a05fd858281fcac6fe94ec76a46d5396b9e5.tar.xz | |
vfio: Add VFIO_DEVICE_[AT|DE]TACH_IOMMUFD_PT
This adds ioctl for userspace to attach device cdev fd to and detach
from IOAS/hw_pagetable managed by iommufd.
VFIO_DEVICE_ATTACH_IOMMUFD_PT: attach vfio device to IOAS or hw_pagetable
managed by iommufd. Attach can be undo
by VFIO_DEVICE_DETACH_IOMMUFD_PT or device
fd close.
VFIO_DEVICE_DETACH_IOMMUFD_PT: detach vfio device from the current attached
IOAS or hw_pagetable managed by iommufd.
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Yanting Jiang <yanting.jiang@intel.com>
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Tested-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20230718135551.6592-24-yi.l.liu@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/vfio.h')
| -rw-r--r-- | drivers/vfio/vfio.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/vfio/vfio.h b/drivers/vfio/vfio.h index b6d4ba1ef2b8..8353774a5d07 100644 --- a/drivers/vfio/vfio.h +++ b/drivers/vfio/vfio.h @@ -266,6 +266,11 @@ vfio_iommufd_compat_attach_ioas(struct vfio_device *device, } #endif +int vfio_df_ioctl_attach_pt(struct vfio_device_file *df, + struct vfio_device_attach_iommufd_pt __user *arg); +int vfio_df_ioctl_detach_pt(struct vfio_device_file *df, + struct vfio_device_detach_iommufd_pt __user *arg); + #if IS_ENABLED(CONFIG_VFIO_DEVICE_CDEV) void vfio_init_device_cdev(struct vfio_device *device); |