Add support for the DISCO_F429ZI target

This commit includes:

* Reduce stack and heap size for all boxes, where necessary and
  possible (printf used in threads is a constraint).
* Use new Thread APIs.
* Add ACLs and configurations for the DISCO_F429ZI target.

Author: AlessandroA

source/led1.cpp

@@ -31,7 +31,7 @@ static void led1_main(const void *)
     SecureAllocator alloc = secure_allocator_create_with_pages(4 * kB, 1 * kB);
 
     while (1) {
-        static const size_t size = 500;
+        static const size_t size = 50;
         uint16_t seed = (size << 8) | (uvisor_ctx->heartbeat & 0xFF);
 
         led1 = !led1;

source/led2.cpp

@@ -18,7 +18,7 @@ static void led2_main(const void *);
  * We do not need large stacks in either the main nor the interrupt thread, as
  * we do not do anything special in them. */
 UVISOR_BOX_NAMESPACE(NULL);
-UVISOR_BOX_HEAPSIZE(8 * 1024);
+UVISOR_BOX_HEAPSIZE(3 * 1024);
 UVISOR_BOX_MAIN(led2_main, osPriorityNormal, 512);
 UVISOR_BOX_CONFIG(box_led2, acl, 512, box_context);
 
@@ -47,7 +47,7 @@ static void led2_main(const void *)
     secure_allocator_destroy(alloc2);
 
     while (1) {
-        static const size_t size = 300;
+        static const size_t size = 30;
         uint16_t seed = (size << 8) | (uvisor_ctx->heartbeat & 0xFF);
 
         led2 = !led2;

source/led3.cpp

@@ -18,7 +18,7 @@ static void led3_main(const void *);
  * We need at least 1kB in the main thread as we use printf in it. The interrupt
  * stack size can be smaller as we do not do anything special in them. */
 UVISOR_BOX_NAMESPACE(NULL);
-UVISOR_BOX_HEAPSIZE(8 * 1024);
+UVISOR_BOX_HEAPSIZE(3 * 1024);
 UVISOR_BOX_MAIN(led3_main, osPriorityNormal, 1024);
 UVISOR_BOX_CONFIG(box_led3, acl, 512, box_context);
 
@@ -59,7 +59,7 @@ static void led3_main(const void *)
     SecureAllocator alloc = secure_allocator_create_with_pages(4 * kB, 1 * kB);
     /* Prepare the thread definition structure. */
     osThreadDef_t thread_def;
-    thread_def.stacksize = DEFAULT_STACK_SIZE;
+    thread_def.stacksize = 512;
     /* Allocate the stack inside the page allocator! */
     thread_def.stack_pointer = (uint32_t *) secure_malloc(alloc, DEFAULT_STACK_SIZE);
     thread_def.tpriority = osPriorityNormal;

source/main-hw.h

@@ -17,17 +17,15 @@
 #ifndef __UVISOR_HELLOWORLD_MAIN_HW_H__
 #define __UVISOR_HELLOWORLD_MAIN_HW_H__
 
-/* The vector containing the challenge is shared with the push-button ISR, so
- * that it can attempt to access it from an IRQ context. */
 
-#define LED_ON  true
-#define LED_OFF false
+#if defined(TARGET_K64F)
 
-#define MAIN_LED LED_BLUE
-#define HALT_LED LED_RED
-
-#define MAIN_BTN SW2
-#define MAIN_BTN_PUPD PullUp
+#define MAIN_LED           LED1
+#define SECURE_LED         LED2
+#define LED_ON             false
+#define LED_OFF            true
+#define SECURE_SWITCH      SW2
+#define SECURE_SWITCH_PULL PullUp
 
 #define MAIN_ACL(acl_list_name) \
     static const UvisorBoxAclItem acl_list_name[] = {     \
@@ -48,4 +46,36 @@
         {SPI0,   sizeof(*SPI0),   UVISOR_TACLDEF_PERIPH}, \
     }
 
+#elif defined(TARGET_DISCO_F429ZI)
+
+#define MAIN_LED           LED1
+#define SECURE_LED         LED2
+#define LED_ON             false
+#define LED_OFF            true
+#define SECURE_SWITCH      USER_BUTTON
+#define SECURE_SWITCH_PULL PullDown
+
+#define MAIN_ACL(acl_list_name) \
+    static const UvisorBoxAclItem acl_list_name[] = {     \
+        {GPIOA,               sizeof(*GPIOA),  UVISOR_TACLDEF_PERIPH}, \
+        {GPIOB,               sizeof(*GPIOB),  UVISOR_TACLDEF_PERIPH}, \
+        {GPIOC,               sizeof(*GPIOC),  UVISOR_TACLDEF_PERIPH}, \
+        {GPIOD,               sizeof(*GPIOD),  UVISOR_TACLDEF_PERIPH}, \
+        {GPIOE,               sizeof(*GPIOE),  UVISOR_TACLDEF_PERIPH}, \
+        {RTC,                 sizeof(*RTC),    UVISOR_TACLDEF_PERIPH}, \
+        {TIM5,                sizeof(*TIM5),   UVISOR_TACLDEF_PERIPH}, \
+        {USART1,              sizeof(*USART1), UVISOR_TACLDEF_PERIPH}, \
+        {I2C1,                sizeof(*I2C1),   UVISOR_TACLDEF_PERIPH}, \
+        {SPI1,                sizeof(*SPI1),   UVISOR_TACLDEF_PERIPH}, \
+        {RCC,                 sizeof(*RCC),    UVISOR_TACLDEF_PERIPH}, \
+        {FLASH,               sizeof(*FLASH),  UVISOR_TACLDEF_PERIPH}, \
+        {PWR,                 sizeof(*PWR),    UVISOR_TACLDEF_PERIPH}, \
+        {EXTI,                sizeof(*EXTI),   UVISOR_TACLDEF_PERIPH}, \
+        {GPIOG,               sizeof(*GPIOG),  UVISOR_TACLDEF_PERIPH}, \
+        {SYSCFG,              sizeof(*SYSCFG), UVISOR_TACLDEF_PERIPH}, \
+        {(void *) 0x42000000, 0x01000000,      UVISOR_TACLDEF_PERIPH}, /* FIXME */ \
+    }
+
+#endif /* Target-specific settings */
+
 #endif /* __UVISOR_HELLOWORLD_MAIN_HW_H__ */

source/main.cpp

@@ -34,7 +34,7 @@ static void main_alloc(void)
     SecureAllocator alloc = secure_allocator_create_with_pages(4 * kB, 1 * kB);
 
     while (1) {
-        alloc_fill_wait_verify_free(500, seed, 577);
+        alloc_fill_wait_verify_free(50, seed, 577);
         specific_alloc_fill_wait_verify_free(alloc, 5 * kB, seed, 97);
         seed++;
     }