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sept-s: First functional version.

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This commit is contained in:
Michael Scire
2019-02-20 13:12:15 -08:00
parent f1068d6c3f
commit ddc5222208
12 changed files with 72 additions and 87 deletions
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20
sept/sept-secondary/src/main.c
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@@ -83,7 +83,7 @@ static void exfiltrate_keys_and_reboot_if_needed(void) {
}
/* Clear the security engine state. */
for (size_t i = 0; i < 0x1000; i += 4) {
for (size_t i = 0; i < 0x840; i += 4) {
MAKE_REG32((uintptr_t)(enc_se_state) + i) = 0xCCCCCCCC;
MAKE_REG32((uintptr_t)(dec_se_state) + i) = 0xCCCCCCCC;
}
@@ -140,6 +140,9 @@ static void exit_callback(int rc) {
}
int main(void) {
const char *stage2_path;
stage2_args_t *stage2_args;
uint32_t stage2_version = 0;
ScreenLogLevel log_level = SCREEN_LOG_LEVEL_MANDATORY;
/* Extract keys from the security engine, which TSEC FW locked down. */
@@ -166,9 +169,18 @@ int main(void) {
/* Mark EMC scratch to say that sept has run. */
MAKE_EMC_REG(EMC_SCRATCH0) |= 0x80000000;
while (true) { }
/* TODO: Chainload to payload. */
/* Load the loader payload into DRAM. */
load_stage2();
/* Setup argument data. */
stage2_path = stage2_get_program_path();
strcpy(g_chainloader_arg_data, stage2_path);
stage2_args = (stage2_args_t *)(g_chainloader_arg_data + strlen(stage2_path) + 1); /* May be unaligned. */
memcpy(&stage2_args->version, &stage2_version, 4);
memcpy(&stage2_args->log_level, &log_level, sizeof(log_level));
stage2_args->display_initialized = false;
strcpy(stage2_args->bct0, "");
g_chainloader_argc = 2;
/* Wait a while. */
mdelay(1000);