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Atmosphere/exosphere/src/warmboot_main.c

58 lines
1.6 KiB
C

#include "utils.h"
#include "mmu.h"
#include "memory_map.h"
#include "cpu_context.h"
#include "bootconfig.h"
#include "configitem.h"
#include "masterkey.h"
#include "bootup.h"
#include "smc_api.h"
#include "se.h"
#include "mc.h"
#include "interrupt.h"
void __attribute__((noreturn)) warmboot_main(void) {
/*
This function and its callers are reached in either of the following events, under normal conditions:
- warmboot (core 3)
- cpu_on
*/
if (is_core_active(get_core_id())) {
panic(0xF7F00009); /* invalid CPU context */
}
/* IRAM C+D identity mapping has actually been removed on coldboot but we don't really care */
identity_unmap_iram_cd_tzram();
/* On warmboot (not cpu_on) only */
if (MC_SECURITY_CFG3_0 == 0) {
if (!configitem_is_retail()) {
/* TODO: uart_log("OHAYO"); */
}
/* Sanity check the Security Engine. */
se_verify_flags_cleared();
/* Initialize interrupts. */
intr_initialize_gic_nonsecure();
bootup_misc_mmio();
/* Make PMC (2.x+), MC (4.x+) registers secure-only */
secure_additional_devices();
/* TODO: car+clkreset stuff, some other mmio (?) */
if (mkey_get_revision() >= MASTERKEY_REVISION_400_CURRENT) {
setup_4x_mmio(); /* TODO */
}
}
clear_priv_smc_in_progress();
setup_current_core_state();
/* Update SCR_EL3 depending on value in Bootconfig. */
set_extabt_serror_taken_to_el3(bootconfig_take_extabt_serror_to_el3());
core_jump_to_lower_el();
}