mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-10 06:01:52 +00:00
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
#include <string.h>
|
|
#include "utils.h"
|
|
#include "mmu.h"
|
|
#include "memory_map.h"
|
|
|
|
extern void (*__fini_array_start[])(void);
|
|
extern void (*__fini_array_end[])(void);
|
|
extern void _fini(void);
|
|
|
|
extern uint8_t __pk2ldr_start__[], __pk2ldr_end__[];
|
|
|
|
extern void __jump_to_lower_el(uint64_t arg, uintptr_t ep, unsigned int el);
|
|
|
|
void coldboot_main(void);
|
|
|
|
/* Needs to be called for EL3->EL3 chainloading (and only in that case). TODO: use it */
|
|
static void __libc_fini_array(void) __attribute__((used)) {
|
|
for (size_t i = __fini_array_end - __fini_array_start; i > 0; i--)
|
|
__fini_array_start[i - 1]();
|
|
_fini(); /* FIXME: do we have this gcc-provided symbol if we build with -nostartfiles? */
|
|
}
|
|
|
|
void coldboot_main(void) {
|
|
uintptr_t *mmu_l3_table = (uintptr_t *)tzram_get_segment_address(TZRAM_SEGMENT_ID_L3_TRANSLATION_TABLE);
|
|
void *pk2ldr = (void *)tzram_get_segment_address(TZRAM_SEGMENT_ID_PK2LDR);
|
|
|
|
/* Clear and unmap pk2ldr (which is reused as exception entry stacks) */
|
|
memset(pk2ldr, 0, __pk2ldr_end__ - __pk2ldr_start__);
|
|
mmu_unmap_range(mmu_l3_table, pk2ldr, __pk2ldr_end__ - __pk2ldr_start__);
|
|
tlb_invalidate_all_inner_shareable();
|
|
|
|
/* TODO: stuff & jump to lower EL */
|
|
}
|