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Pre-allocate secure-side context structures

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This commit improves ARMv8-M security by pre-allocating secure-side task
context structures and changing how tasks reference a secure-side
context structure when calling a secure function. The new configuration
constant secureconfigMAX_SECURE_CONTEXTS sets the number of secure
context structures to pre-allocate. secureconfigMAX_SECURE_CONTEXTS
defaults to 8 if left undefined.

Signed-off-by: Gaurav Aggarwal <aggarg@amazon.com>
This commit is contained in:
Gaurav Aggarwal 2021-08-04 14:52:22 -07:00 • committed by Gaurav-Aggarwal-AWS
parent f8ada39d85
commit ccaa0f4d6e
27 changed files with 1012 additions and 657 deletions
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4
portable/ARMv8M/secure/heap/secure_heap.c
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@ -38,7 +38,9 @@
/**
* @brief Total heap size.
*/
#define secureconfigTOTAL_HEAP_SIZE ( ( ( size_t ) ( 10 * 1024 ) ) )
#ifndef secureconfigTOTAL_HEAP_SIZE
#define secureconfigTOTAL_HEAP_SIZE ( ( ( size_t ) ( 10 * 1024 ) ) )
#endif
/* No test marker by default. */
#ifndef mtCOVERAGE_TEST_MARKER