k_mem_domain Struct Reference

Memory Domain. More...

#include <mem_domain.h>

Data Fields
struct k_mem_partition	partitions [CONFIG_MAX_DOMAIN_PARTITIONS]
	partitions in the domain
sys_dlist_t	mem_domain_q
	Doubly linked list of member threads.
uint8_t	num_partitions
	number of active partitions in the domain

Detailed Description

Memory Domain.

A memory domain is a collection of memory partitions, used to represent a user thread's access policy for the linear address space. A thread may be a member of only one memory domain, but any memory domain may have multiple threads that are members.

Supervisor threads may also be a member of a memory domain; this has no implications on their memory access but can be useful as any child threads inherit the memory domain membership of the parent.

A user thread belonging to a memory domain with no active partitions will have guaranteed access to its own stack buffer, program text, and read-only data.

Field Documentation

mem_domain_q

sys_dlist_t k_mem_domain::mem_domain_q

Doubly linked list of member threads.

num_partitions

uint8_t k_mem_domain::num_partitions

number of active partitions in the domain

partitions

struct k_mem_partition k_mem_domain::partitions[CONFIG_MAX_DOMAIN_PARTITIONS]

partitions in the domain

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The documentation for this struct was generated from the following file:

• include/zephyr/app_memory/mem_domain.h