SMMUMAN Client API Reference

Updated: April 19, 2023

This chapter describes the API that SMMUMAN clients can use to access and manage the smmuman services.

This API is defined in the smmu.h public header file.

smmu_* data structures
Data structures used by the SMMUMAN client API
Enumerated values and constants
Enumerated values used by the SMMUMAN client API
smmu_device_add_generic()
Add a device to a SMMU object, or remove it
smmu_device_add_mmio()
Add an MMIO device to a SMMU object, or remove it
smmu_device_add_pci()
Add a PCI device to a SMMU object, or remove it
smmu_device_report_reserved()
Report which memory region or regions are reserved for a DMA device that requires device-specific reserved memory
smmu_fini()
Terminate the client’s connection with smmuman
smmu_init()
Initialize contact between the client process and smmuman
smmu_mapping_add()
Add a memory mapping to or remove a memory mapping from a SMMU object
smmu_obj_create()
Create a SMMU object to which devices and their memory mappings can be added
smmu_obj_destroy()
Destroy a SMMU object
smmu_safety()
Query the smmuman service for its safety status
smmu_xfer_notify()
Register to be notified of DMA device memory access transgressions
smmu_xfer_status()
Retrieve the record of a DMA device’s attempt to access memory outside its permitted region or regions