int hikey_bl2_handle_post_image_load(unsigned int image_id)
{
int err = 0;
bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
#ifdef SPD_opteed
bl_mem_params_node_t *pager_mem_params = NULL;
bl_mem_params_node_t *paged_mem_params = NULL;
#endif
assert(bl_mem_params);
switch (image_id) {
#ifdef AARCH64
case BL32_IMAGE_ID:
#ifdef SPD_opteed
pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
assert(pager_mem_params);
paged_mem_params = get_bl_mem_params_node(BL32_EXTRA2_IMAGE_ID);
assert(paged_mem_params);
err = parse_optee_header(&bl_mem_params->ep_info,
&pager_mem_params->image_info,
&paged_mem_params->image_info);
if (err != 0) {
WARN("OPTEE header parse error.\n");
}
#endif
bl_mem_params->ep_info.spsr = hikey_get_spsr_for_bl32_entry();
break;
#endif
case BL33_IMAGE_ID:
/* BL33 expects to receive the primary CPU MPID (through r0) */
bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
bl_mem_params->ep_info.spsr = hikey_get_spsr_for_bl33_entry();
break;
#ifdef SCP_BL2_BASE
case SCP_BL2_IMAGE_ID:
/* The subsequent handling of SCP_BL2 is platform specific */
err = plat_hikey_bl2_handle_scp_bl2(&bl_mem_params->image_info);
if (err) {
WARN("Failure in platform-specific handling of SCP_BL2 image.\n");
}
break;
#endif
default:
/* Do nothing in default case */
break;
}
return err;
}
struct image_info *uniphier_get_image_info(unsigned int image_id)
{
struct bl_mem_params_node *desc;
desc = get_bl_mem_params_node(image_id);
assert(desc);
return &desc->image_info;
}
/*******************************************************************************
* This function can be used by the platforms to update/use image
* information for given `image_id`.
******************************************************************************/
int bl2_plat_handle_post_image_load(unsigned int image_id)
{
int err = 0;
bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
#ifdef SPD_opteed
bl_mem_params_node_t *pager_mem_params = NULL;
bl_mem_params_node_t *paged_mem_params = NULL;
#endif
assert(bl_mem_params != NULL);
switch (image_id) {
case BL32_IMAGE_ID:
#ifdef SPD_opteed
pager_mem_params = get_bl_mem_params_node(BL32_EXTRA1_IMAGE_ID);
assert(pager_mem_params);
paged_mem_params = get_bl_mem_params_node(BL32_EXTRA2_IMAGE_ID);
assert(paged_mem_params);
err = parse_optee_header(&bl_mem_params->ep_info,
&pager_mem_params->image_info,
&paged_mem_params->image_info);
if (err != 0)
WARN("OPTEE header parse error.\n");
#endif
bl_mem_params->ep_info.spsr = rpi3_get_spsr_for_bl32_entry();
break;
case BL33_IMAGE_ID:
/* BL33 expects to receive the primary CPU MPID (through r0) */
bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
bl_mem_params->ep_info.spsr = rpi3_get_spsr_for_bl33_entry();
/* Shutting down the SDHost driver to let BL33 drives SDHost.*/
rpi3_sdhost_stop();
break;
default:
/* Do nothing in default case */
break;
}
return err;
}
/*******************************************************************************
* This function changes the spsr for BL32 image to bypass
* the check in BL1 AArch64 exception handler. This is needed in the aarch32
* boot flow as the core comes up in aarch64 and to enter the BL32 image a warm
* reset in aarch32 state is required.
******************************************************************************/
int bl2_plat_handle_post_image_load(unsigned int image_id)
{
int err = arm_bl2_handle_post_image_load(image_id);
if (!err && (image_id == BL32_IMAGE_ID)) {
bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
assert(bl_mem_params);
bl_mem_params->ep_info.spsr = SPSR_64(MODE_EL3, MODE_SP_ELX,
DISABLE_ALL_EXCEPTIONS);
}
return err;
}
int ls_bl2_handle_post_image_load(unsigned int image_id)
{
int err = 0;
bl_mem_params_node_t *bl_mem_params = get_bl_mem_params_node(image_id);
assert(bl_mem_params);
switch (image_id) {
#ifdef AARCH64
case BL32_IMAGE_ID:
bl_mem_params->ep_info.spsr = ls_get_spsr_for_bl32_entry();
break;
#endif
case BL33_IMAGE_ID:
/* BL33 expects to receive the primary CPU MPID (through r0) */
bl_mem_params->ep_info.args.arg0 = 0xffff & read_mpidr();
bl_mem_params->ep_info.spsr = ls_get_spsr_for_bl33_entry();
break;
}
return err;
}
/*
* BL2 utility function to initialize dynamic configuration specified by
* TB_FW_CONFIG. Populate the bl_mem_params_node_t of other FW_CONFIGs if
* specified in TB_FW_CONFIG.
*/
void arm_bl2_dyn_cfg_init(void)
{
int err = 0, tb_fw_node;
unsigned int i;
bl_mem_params_node_t *cfg_mem_params = NULL;
uint64_t image_base;
uint32_t image_size;
const unsigned int config_ids[] = {
HW_CONFIG_ID,
SOC_FW_CONFIG_ID,
NT_FW_CONFIG_ID,
#ifdef SPD_tspd
/* Currently tos_fw_config is only present for TSP */
TOS_FW_CONFIG_ID
#endif
};
if (tb_fw_cfg_dtb == NULL) {
VERBOSE("No TB_FW_CONFIG specified\n");
return;
}
err = arm_dyn_tb_fw_cfg_init(tb_fw_cfg_dtb, &tb_fw_node);
if (err < 0) {
ERROR("Invalid TB_FW_CONFIG passed from BL1\n");
panic();
}
/* Iterate through all the fw config IDs */
for (i = 0; i < ARRAY_SIZE(config_ids); i++) {
/* Get the config load address and size from TB_FW_CONFIG */
cfg_mem_params = get_bl_mem_params_node(config_ids[i]);
if (cfg_mem_params == NULL) {
VERBOSE("Couldn't find HW_CONFIG in bl_mem_params_node\n");
continue;
}
err = arm_dyn_get_config_load_info(tb_fw_cfg_dtb, tb_fw_node,
config_ids[i], &image_base, &image_size);
if (err < 0) {
VERBOSE("Couldn't find config_id %d load info in TB_FW_CONFIG\n",
config_ids[i]);
continue;
}
/*
* Do some runtime checks on the load addresses of soc_fw_config,
* tos_fw_config, nt_fw_config. This is not a comprehensive check
* of all invalid addresses but to prevent trivial porting errors.
*/
if (config_ids[i] != HW_CONFIG_ID) {
if (check_uptr_overflow(image_base, image_size))
continue;
#ifdef BL31_BASE
/* Ensure the configs don't overlap with BL31 */
if ((image_base > BL31_BASE) || ((image_base + image_size) > BL31_BASE))
continue;
#endif
/* Ensure the configs are loaded in a valid address */
if (image_base < ARM_BL_RAM_BASE)
continue;
#ifdef BL32_BASE
/*
* If BL32 is present, ensure that the configs don't
* overlap with it.
*/
if (image_base >= BL32_BASE && image_base <= BL32_LIMIT)
continue;
#endif
}
cfg_mem_params->image_info.image_base = (uintptr_t)image_base;
cfg_mem_params->image_info.image_max_size = image_size;
/* Remove the IMAGE_ATTRIB_SKIP_LOADING attribute from HW_CONFIG node */
cfg_mem_params->image_info.h.attr &= ~IMAGE_ATTRIB_SKIP_LOADING;
}
#if TRUSTED_BOARD_BOOT && defined(DYN_DISABLE_AUTH)
uint32_t disable_auth = 0;
err = arm_dyn_get_disable_auth(tb_fw_cfg_dtb, tb_fw_node,
&disable_auth);
if (err < 0)
return;
if (disable_auth == 1)
dyn_disable_auth();
#endif
}
/*******************************************************************************
* This function populates the entry point information with the corresponding
* config file for all executable BL images described in bl_params.
******************************************************************************/
void populate_next_bl_params_config(bl_params_t *bl2_to_next_bl_params)
{
bl_params_node_t *params_node;
unsigned int fw_config_id;
uintptr_t hw_config_base = 0, fw_config_base;
bl_mem_params_node_t *mem_params;
assert(bl2_to_next_bl_params != NULL);
/*
* Get the `bl_mem_params_node_t` corresponding to HW_CONFIG
* if available.
*/
mem_params = get_bl_mem_params_node(HW_CONFIG_ID);
if (mem_params != NULL)
hw_config_base = mem_params->image_info.image_base;
for (params_node = bl2_to_next_bl_params->head; params_node != NULL;
params_node = params_node->next_params_info) {
fw_config_base = 0;
switch (params_node->image_id) {
case BL31_IMAGE_ID:
fw_config_id = SOC_FW_CONFIG_ID;
break;
case BL32_IMAGE_ID:
fw_config_id = TOS_FW_CONFIG_ID;
break;
case BL33_IMAGE_ID:
fw_config_id = NT_FW_CONFIG_ID;
break;
default:
fw_config_id = INVALID_IMAGE_ID;
break;
}
if (fw_config_id != INVALID_IMAGE_ID) {
mem_params = get_bl_mem_params_node(fw_config_id);
if (mem_params != NULL)
fw_config_base = mem_params->image_info.image_base;
}
/*
* Pass hw and tb_fw config addresses to next images. NOTE - for
* EL3 runtime images (BL31 for AArch64 and BL32 for AArch32),
* arg0 is already used by generic code. Take care of not
* overwriting the previous initialisations.
*/
if (params_node == bl2_to_next_bl_params->head) {
if (params_node->ep_info->args.arg1 == 0)
params_node->ep_info->args.arg1 =
fw_config_base;
if (params_node->ep_info->args.arg2 == 0)
params_node->ep_info->args.arg2 =
hw_config_base;
} else {
if (params_node->ep_info->args.arg0 == 0)
params_node->ep_info->args.arg0 =
fw_config_base;
if (params_node->ep_info->args.arg1 == 0)
params_node->ep_info->args.arg1 =
hw_config_base;
}
}
}
