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fw: Pass length of next_app_data to syscall reset

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Michael Cardell Widerkrantz 2025-04-07 14:45:56 +02:00 committed by Mikael Ågren
parent 6d76bdeafd
commit 9608c95931
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GPG Key ID: E02DA3D397792C46
1 changed files with 16 additions and 6 deletions
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22
hw/application_fpga/fw/tk1/syscall_handler.c
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@ -17,9 +17,9 @@
#include "../tk1/syscall_num.h"
// clang-format off
static volatile uint32_t *system_reset = (volatile uint32_t *)TK1_MMIO_TK1_SYSTEM_RESET;
static volatile uint32_t *udi = (volatile uint32_t *)TK1_MMIO_TK1_UDI_FIRST;
static volatile uint8_t *resetinfo = (volatile uint8_t *) TK1_MMIO_RESETINFO_BASE;
static volatile uint32_t *system_reset = (volatile uint32_t *)TK1_MMIO_TK1_SYSTEM_RESET;
static volatile uint32_t *udi = (volatile uint32_t *)TK1_MMIO_TK1_UDI_FIRST;
static volatile struct reset *resetinfo = (volatile struct reset *)TK1_MMIO_RESETINFO_BASE;
// clang-format on
extern struct partition_table_storage part_table_storage;
@ -28,13 +28,23 @@ extern uint8_t part_status;
int32_t syscall_handler(uint32_t number, uint32_t arg1, uint32_t arg2,
uint32_t arg3)
{
struct reset *userreset = (struct reset *)arg1;
switch (number) {
case TK1_SYSCALL_RESET:
// TODO: Take length from user
memcpy((uint8_t *)resetinfo, (uint8_t *)arg1, sizeof(struct reset));
if (arg2 > sizeof(resetinfo->next_app_data)) {
return -1;
}
memset((void *)resetinfo, 0, sizeof(*resetinfo));
resetinfo->type = userreset->type;
memcpy((void *)resetinfo->app_digest, userreset->app_digest, 32);
memcpy((void *)resetinfo->next_app_data, userreset->next_app_data, arg2);
*system_reset = 1;
return 0;
// Should not be reached.
assert(1 == 2);
case TK1_SYSCALL_ALLOC_AREA:
if (storage_allocate_area(&part_table_storage) < 0) {
debug_puts("couldn't allocate storage area\n");