tfm_multi_core.h File Reference

#include <stdbool.h>

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Data Structures
struct	security_attr_info_t
struct	mem_attr_info_t

Functions
void	tfm_get_mem_region_security_attr (const void *p, size_t s, struct security_attr_info_t *p_attr)
	Retrieve general security isolation configuration information of the target memory region according to the system memory region layout and fill the security_attr_info_t. More...
void	tfm_get_secure_mem_region_attr (const void *p, size_t s, struct mem_attr_info_t *p_attr)
	Retrieve general secure memory protection configuration information of the target memory region according to the system memory region layout and symbol addresses and fill the mem_attr_info_t. More...
void	tfm_get_ns_mem_region_attr (const void *p, size_t s, struct mem_attr_info_t *p_attr)
	Retrieve general non-secure memory protection configuration information of the target memory region according to the system memory region layout and fill the mem_attr_info_t. More...
int32_t	tfm_has_access_to_region (const void *p, size_t s, uint32_t attr)
	Check whether a memory access is allowed to access to a memory range. More...

Function Documentation

void tfm_get_mem_region_security_attr	(	const void *	p,
		size_t	s,
		struct security_attr_info_t *	p_attr
	)

Retrieve general security isolation configuration information of the target memory region according to the system memory region layout and fill the security_attr_info_t.

Parameters

[in]	p	Base address of target memory region
[in]	s	Size of target memory region
[out]	p_attr	Address of security_attr_info_t to be filled

Returns

void

Note

This function doesn't access any hardware security isolation unit.

Definition at line 67 of file tfm_multi_core_mem_check.c.

void tfm_get_ns_mem_region_attr	(	const void *	p,
		size_t	s,
		struct mem_attr_info_t *	p_attr
	)

Retrieve general non-secure memory protection configuration information of the target memory region according to the system memory region layout and fill the mem_attr_info_t.

Parameters

[in]	p	Base address of target memory region
[in]	s	Size of target memory region
[out]	p_attr	Address of mem_attr_info_t to be filled

Returns

void

Note

This function doesn't access any hardware memory protection unit. The mem_attr_info_t::is_mpu_enabled field is set to false by default.

Definition at line 220 of file tfm_multi_core_mem_check.c.

void tfm_get_secure_mem_region_attr	(	const void *	p,
		size_t	s,
		struct mem_attr_info_t *	p_attr
	)

Retrieve general secure memory protection configuration information of the target memory region according to the system memory region layout and symbol addresses and fill the mem_attr_info_t.

Parameters

[in]	p	Base address of target memory region
[in]	s	Size of target memory region
[out]	p_attr	Address of mem_attr_info_t to be filled

Returns

void

Note

This function doesn't access any hardware memory protection unit. The mem_attr_info_t::is_mpu_enabled field is set to false by default.

Definition at line 108 of file tfm_multi_core_mem_check.c.

int32_t tfm_has_access_to_region	(	const void *	p,
		size_t	s,
		uint32_t	attr
	)

Check whether a memory access is allowed to access to a memory range.

Parameters

[in]	p	The start address of the range to check
[in]	s	The size of the range to check
[in]	attr	The attributes indicating the access permissions.

Returns

TFM_SUCCESS if the access is allowed, TFM_ERROR_GENERIC otherwise.

Definition at line 422 of file tfm_multi_core_mem_check.c.

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