mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 01:54:22 +00:00
1fb3446ed2
Pass transfer list address to BL32 as an argument during boot time. Change-Id: Ic63649b9c41cfae2365ec5911dcab63a7dd005ff Signed-off-by: Maheedhar Bollapalli <maheedharsai.bollapalli@amd.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2023-2025, Advanced Micro Devices, Inc. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
#include <stddef.h>
|
|
#include <arch_helpers.h>
|
|
#include <common/debug.h>
|
|
#include <lib/transfer_list.h>
|
|
#include <platform_def.h>
|
|
|
|
|
|
static struct transfer_list_header *tl_hdr;
|
|
static int32_t tl_ops_holder;
|
|
|
|
bool populate_data_from_xfer_list(void)
|
|
{
|
|
bool ret = true;
|
|
|
|
tl_hdr = (struct transfer_list_header *)FW_HANDOFF_BASE;
|
|
tl_ops_holder = transfer_list_check_header(tl_hdr);
|
|
|
|
if ((tl_ops_holder != TL_OPS_ALL) && (tl_ops_holder != TL_OPS_RO)) {
|
|
ret = false;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int32_t transfer_list_populate_ep_info(entry_point_info_t *bl32,
|
|
entry_point_info_t *bl33)
|
|
{
|
|
int32_t ret = tl_ops_holder;
|
|
struct transfer_list_entry *te = NULL;
|
|
struct entry_point_info *ep = NULL;
|
|
|
|
if ((tl_ops_holder == TL_OPS_ALL) || (tl_ops_holder == TL_OPS_RO)) {
|
|
transfer_list_dump(tl_hdr);
|
|
while ((te = transfer_list_next(tl_hdr, te)) != NULL) {
|
|
ep = transfer_list_entry_data(te);
|
|
if (te->tag_id == TL_TAG_EXEC_EP_INFO64) {
|
|
switch (GET_SECURITY_STATE(ep->h.attr)) {
|
|
case NON_SECURE:
|
|
*bl33 = *ep;
|
|
continue;
|
|
case SECURE:
|
|
*bl32 = *ep;
|
|
if (!transfer_list_set_handoff_args(tl_hdr, ep)) {
|
|
ERROR("Invalid transfer list\n");
|
|
}
|
|
continue;
|
|
default:
|
|
ERROR("Unrecognized Image Security State %lu\n",
|
|
GET_SECURITY_STATE(ep->h.attr));
|
|
ret = TL_OPS_NON;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void *transfer_list_retrieve_dt_address(void)
|
|
{
|
|
void *dtb = NULL;
|
|
struct transfer_list_entry *te = NULL;
|
|
|
|
if ((tl_ops_holder == TL_OPS_ALL) || (tl_ops_holder == TL_OPS_RO)) {
|
|
te = transfer_list_find(tl_hdr, TL_TAG_FDT);
|
|
if (te != NULL) {
|
|
dtb = transfer_list_entry_data(te);
|
|
}
|
|
}
|
|
|
|
return dtb;
|
|
}
|