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Add msplim_ns for box 0 #520

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Merged
merged 1 commit into from
Oct 22, 2017
Merged

Add msplim_ns for box 0 #520

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3 changes: 3 additions & 0 deletions api/src/uvisor-input.S
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Expand Up @@ -114,6 +114,9 @@ uvisor_config:
/* Debug driver pointer */
.long __uvisor_debug_driver

/* Stack limit for public box MSPLIM_NS, accessed by public_box_stack_limit */
.long __StackLimit

/* uVisor mode of operation
* Modes available: UVISOR_ENABLED, UVISOR_DISABLED, UVISOR_PERMISSIVE. */
__uvisor_mode:
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3 changes: 3 additions & 0 deletions core/system/inc/linker.h
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Expand Up @@ -121,6 +121,9 @@ typedef struct {
UvisorLibHooks const * const lib_hooks;

TUvisorDebugDriver const * const debug_driver;

/* Stack limit for public box MSPNS_LIM*/
uint32_t public_box_stack_limit;
} UVISOR_PACKED UvisorConfig;

extern UvisorConfig const __uvisor_config;
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3 changes: 3 additions & 0 deletions core/system/src/main.c
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Expand Up @@ -161,6 +161,9 @@ void main_init(void)
/* NS P stack pointer, for the RTOS and the uVisor-ns. */
__TZ_set_MSP_NS(original_sp);

/* NS P limit, for the RTOS and the uVisor-ns. */
__TZ_set_MSPLIM_NS(__uvisor_config.public_box_stack_limit);

/* S NP stack pointer, for the SDSs and the transition gateways. */
__set_PSP((uint32_t) &__uvisor_stack_top_np__);
#else /* defined(ARCH_CORE_ARMv8M) */
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