示例#1
0
void arm_tf_run_bl31(u64 payload_entry, u64 payload_arg0, u64 payload_spsr)
{
	struct prog bl31 = PROG_INIT(PROG_BL31, CONFIG_CBFS_PREFIX"/bl31");
	void (*bl31_entry)(bl31_params_t *params, void *plat_params) = NULL;

	if (prog_locate(&bl31))
		die("BL31 not found");

	bl31_entry = selfload(&bl31, false);
	if (!bl31_entry)
		die("BL31 load failed");

	SET_PARAM_HEAD(&bl31_params, PARAM_BL31, VERSION_1, 0);

	if (IS_ENABLED(CONFIG_ARM64_USE_SECURE_OS)) {
		struct prog bl32 = PROG_INIT(PROG_BL32,
					     CONFIG_CBFS_PREFIX"/secure_os");

		if (prog_locate(&bl32))
			die("BL32 not found");

		if (cbfs_prog_stage_load(&bl32))
			die("BL32 load failed");

		SET_PARAM_HEAD(&bl32_ep_info, PARAM_EP, VERSION_1,
			       PARAM_EP_SECURE);
		bl32_ep_info.pc = (uintptr_t)prog_entry(&bl32);
		bl32_ep_info.spsr = SPSR_EXCEPTION_MASK |
				get_eret_el(EL1, SPSR_USE_L);
		bl31_params.bl32_ep_info = &bl32_ep_info;
	}

	bl31_params.bl33_ep_info = &bl33_ep_info;

	SET_PARAM_HEAD(&bl33_ep_info, PARAM_EP, VERSION_1, PARAM_EP_NON_SECURE);
	bl33_ep_info.pc = payload_entry;
	bl33_ep_info.spsr = payload_spsr;
	bl33_ep_info.args.arg0 = payload_arg0;

	/* May update bl31_params if necessary. Must flush all added structs. */
	void *bl31_plat_params = soc_get_bl31_plat_params(&bl31_params);

	dcache_clean_by_mva(&bl31_params, sizeof(bl31_params));
	dcache_clean_by_mva(&bl33_ep_info, sizeof(bl33_ep_info));
	raw_write_daif(SPSR_EXCEPTION_MASK);
	mmu_disable();
	bl31_entry(&bl31_params, bl31_plat_params);
	die("BL31 returned!");
}
示例#2
0
static void spintable_enter(void *unused)
{
	struct exc_state state;
	const struct spintable_attributes *attrs;
	int current_el;

	attrs = spintable_get_attributes();

	current_el = get_current_el();

	if (current_el != EL3)
		attrs->entry(attrs->addr);

	memset(&state, 0, sizeof(state));
	state.elx.spsr = get_eret_el(EL2, SPSR_USE_L);

	transition_with_entry(attrs->entry, attrs->addr, &state);
}