diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-11-29 23:29:36 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-01 03:16:49 +0300 |
| commit | e8d57210035b6377d424ba964961892d01127cf6 (patch) | |
| tree | 08586306dfbb986205ba5097ba3c02fd95650d16 /drivers/iommu/iommufd/main.c | |
| parent | ea4acfac57b9dee57a7d5840359a41cc3251de92 (diff) | |
| download | linux-e8d57210035b6377d424ba964961892d01127cf6.tar.xz | |
iommufd: Add kAPI toward external drivers for physical devices
Add the four functions external drivers need to connect physical DMA to
the IOMMUFD:
iommufd_device_bind() / iommufd_device_unbind()
Register the device with iommufd and establish security isolation.
iommufd_device_attach() / iommufd_device_detach()
Connect a bound device to a page table
Binding a device creates a device object ID in the uAPI, however the
generic API does not yet provide any IOCTLs to manipulate them.
Link: https://lore.kernel.org/r/13-v6-a196d26f289e+11787-iommufd_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Yi Liu <yi.l.liu@intel.com>
Tested-by: Lixiao Yang <lixiao.yang@intel.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/iommu/iommufd/main.c')
| -rw-r--r-- | drivers/iommu/iommufd/main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/iommufd/main.c b/drivers/iommu/iommufd/main.c index ac6580a7b706..fe98912bab0e 100644 --- a/drivers/iommu/iommufd/main.c +++ b/drivers/iommu/iommufd/main.c @@ -357,6 +357,9 @@ void iommufd_ctx_put(struct iommufd_ctx *ictx) EXPORT_SYMBOL_NS_GPL(iommufd_ctx_put, IOMMUFD); static const struct iommufd_object_ops iommufd_object_ops[] = { + [IOMMUFD_OBJ_DEVICE] = { + .destroy = iommufd_device_destroy, + }, [IOMMUFD_OBJ_IOAS] = { .destroy = iommufd_ioas_destroy, }, |