6 May
2025
6 May
'25
9:17 a.m.
On 5/2/2025 4:31 AM, Nicolin Chen wrote:
Add a new IOMMUFD_OBJ_VQUEUE with an iommufd_vqueue structure representing a HW-accelerated queue type of physical IOMMU's passed to a user space VM. This vQUEUE object, is a subset of vIOMMU resources of a physical IOMMU's, such as:
- NVIDIA's Virtual Command Queue
- AMD vIOMMU's Command Buffer, Event Log Buffer, and PPR Log Buffer
Introduce a struct iommufd_vqueue and an allocator iommufd_vqueue_alloc(). Also, add a pair of viommu ops for iommufd to forward user space ioctls to IOMMU drivers.
Reviewed-by: Lu Baolu baolu.lu@linux.intel.com Reviewed-by: Pranjal Shrivastava praan@google.com Signed-off-by: Nicolin Chen nicolinc@nvidia.com
Reviewed-by: Vasant Hegde vasant.hegde@amd.com
-Vasant