Core Register Access Functions

Core register Access functions related to TrustZone for Armv8-M. More...

Functions
uint32_t	__TZ_get_CONTROL_NS (void)
	Get Control register (non-secure) More...
void	__TZ_set_CONTROL_NS (uint32_t control)
	Set Control register (non-secure) More...
uint32_t	__TZ_get_PSP_NS (void)
	Get Process Stack Pointer (non-secure) More...
void	__TZ_set_PSP_NS (uint32_t topOfProcStack)
	Set Process Stack Pointer (non-secure) More...
uint32_t	__TZ_get_MSP_NS (void)
	Get Main Stack Pointer (non-secure) More...
void	__TZ_set_MSP_NS (uint32_t topOfMainStack)
	Set Main Stack Pointer (non-secure) More...
uint32_t	__TZ_get_SP_NS (void)
	Get Stack Pointer (non-secure) More...
void	__TZ_set_SP_NS (uint32_t topOfStack)
	Set Stack Pointer (non-secure) More...
uint32_t	__TZ_get_PRIMASK_NS (void)
	Get Priority Mask (non-secure) More...
void	__TZ_set_PRIMASK_NS (uint32_t priMask)
	Set Priority Mask (non-secure) More...
uint32_t	__TZ_get_BASEPRI_NS (void)
	Get Base Priority (non-secure) More...
void	__TZ_set_BASEPRI_NS (uint32_t basePri)
	Set Base Priority (non-secure) More...
uint32_t	__TZ_get_FAULTMASK_NS (void)
	Get Fault Mask (non-secure) More...
void	__TZ_set_FAULTMASK_NS (uint32_t faultMask)
	Set Fault Mask (non-secure) More...
uint32_t	__TZ_get_PSPLIM_NS (void)
	Get Process Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
void	__TZ_set_PSPLIM_NS (uint32_t ProcStackPtrLimit)
	Set Process Stack Pointer (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
uint32_t	__TZ_get_MSPLIM_NS (void)
	Get Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
void	__TZ_set_MSPLIM_NS (uint32_t MainStackPtrLimit)
	Set Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...

Description

Core register Access functions related to TrustZone for Armv8-M.

Function Documentation

uint32_t __TZ_get_BASEPRI_NS

(

void

)

Get Base Priority (non-secure)

Returns the current value of the non-secure Base Priority register when in secure state.

Returns

Base Priority register value

See Also

• __get_BASEPRI

uint32_t __TZ_get_CONTROL_NS

(

void

)

Get Control register (non-secure)

Returns the content of the non-secure Control register when in secure mode.

Returns

non-secure Control register value

See Also

• __get_CONTROL; CONTROL_Type

uint32_t __TZ_get_FAULTMASK_NS

(

void

)

Get Fault Mask (non-secure)

Returns the current value of the non-secure Fault Mask register when in secure state.

Returns

Fault Mask register value

See Also

• __get_FAULTMASK

uint32_t __TZ_get_MSP_NS

(

void

)

Get Main Stack Pointer (non-secure)

Returns the current value of the non-secure Main Stack Pointer (MSP) when in secure state.

Returns

MSP register value

See Also

• __get_MSP

uint32_t __TZ_get_MSPLIM_NS

(

void

)

Get Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Returns the current value of the non-secure Main Stack Pointer Limit(MSPLIM) when in secure state.

Returns

MSPLIM register value

uint32_t __TZ_get_PRIMASK_NS

(

void

)

Get Priority Mask (non-secure)

Returns the current state of the non-secure priority mask bit from the Priority Mask register when in secure state.

Returns

Priority Mask value

See Also

• __get_PRIMASK

uint32_t __TZ_get_PSP_NS

(

void

)

Get Process Stack Pointer (non-secure)

Returns the current value of the non-secure Process Stack Pointer (PSP) when in secure state.

Returns

PSP register value

See Also

• __get_PSP

uint32_t __TZ_get_PSPLIM_NS

(

void

)

Get Process Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Returns the current value of the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.

Returns

PSPLIM register value

uint32_t __TZ_get_SP_NS

(

void

)

Get Stack Pointer (non-secure)

Returns the current value of the non-secure Stack Pointer (SP) when in secure state.

Returns

SP register value

void __TZ_set_BASEPRI_NS

(

uint32_t

basePri

)

Set Base Priority (non-secure)

Assigns the given value to the non-secure Base Priority register when in secure state.

Parameters

[in]

basePri

Base Priority value to set

See Also

• __set_BASEPRI

void __TZ_set_CONTROL_NS

(

uint32_t

control

)

Set Control register (non-secure)

Writes the given value to the non-secure Control register when in secure state.

Parameters

[in]

control

Control register value to set

See Also

• __set_CONTROL; CONTROL_Type

void __TZ_set_FAULTMASK_NS

(

uint32_t

faultMask

)

Set Fault Mask (non-secure)

Assigns the given value to the non-secure Fault Mask register when in secure state.

Parameters

[in]

faultMask

Fault Mask value to set

See Also

• __set_FAULTMASK

void __TZ_set_MSP_NS

(

uint32_t

topOfMainStack

)

Set Main Stack Pointer (non-secure)

Assigns the given value to the non-secure Main Stack Pointer (MSP) when in secure state.

Parameters

[in]

topOfMainStack

Main Stack Pointer value to set

See Also

• __set_MSP

void __TZ_set_MSPLIM_NS

(

uint32_t

MainStackPtrLimit

)

Set Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Assigns the given value to the non-secure Main Stack Pointer Limit (MSPLIM) when in secure state.

Parameters

[in]

MainStackPtrLimit

Main Stack Pointer value to set

void __TZ_set_PRIMASK_NS

(

uint32_t

priMask

)

Set Priority Mask (non-secure)

Assigns the given value to the non-secure Priority Mask register when in secure state.

Parameters

[in]

priMask

Priority Mask

See Also

• __set_PRIMASK

void __TZ_set_PSP_NS

(

uint32_t

topOfProcStack

)

Set Process Stack Pointer (non-secure)

Assigns the given value to the non-secure Process Stack Pointer (PSP) when in secure state.

Parameters

[in]

topOfProcStack

Process Stack Pointer value to set

See Also

• __set_PSP

void __TZ_set_PSPLIM_NS

(

uint32_t

ProcStackPtrLimit

)

Set Process Stack Pointer (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Assigns the given value to the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.

Parameters

[in]

ProcStackPtrLimit

Process Stack Pointer Limit value to set

void __TZ_set_SP_NS

(

uint32_t

topOfStack

)

Set Stack Pointer (non-secure)

Assigns the given value to the non-secure Stack Pointer (SP) when in secure state.

Parameters

[in]

topOfStack

Stack Pointer value to set