385 lines
8.9 KiB
C
385 lines
8.9 KiB
C
/*
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* Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <string.h>
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#include <platform_def.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <drivers/io/io_driver.h>
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#include <drivers/io/io_fip.h>
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#include <drivers/io/io_memmap.h>
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#include <drivers/io/io_semihosting.h>
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#include <drivers/io/io_storage.h>
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#include <lib/semihosting.h>
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#include <tools_share/firmware_image_package.h>
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/* Semihosting filenames */
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#define BL2_IMAGE_NAME "bl2.bin"
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#define BL31_IMAGE_NAME "bl31.bin"
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#define BL32_IMAGE_NAME "bl32.bin"
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#define BL32_EXTRA1_IMAGE_NAME "bl32_extra1.bin"
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#define BL32_EXTRA2_IMAGE_NAME "bl32_extra2.bin"
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#define BL33_IMAGE_NAME "bl33.bin"
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#if TRUSTED_BOARD_BOOT
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#define TRUSTED_BOOT_FW_CERT_NAME "tb_fw.crt"
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#define TRUSTED_KEY_CERT_NAME "trusted_key.crt"
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#define SOC_FW_KEY_CERT_NAME "soc_fw_key.crt"
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#define TOS_FW_KEY_CERT_NAME "tos_fw_key.crt"
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#define NT_FW_KEY_CERT_NAME "nt_fw_key.crt"
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#define SOC_FW_CONTENT_CERT_NAME "soc_fw_content.crt"
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#define TOS_FW_CONTENT_CERT_NAME "tos_fw_content.crt"
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#define NT_FW_CONTENT_CERT_NAME "nt_fw_content.crt"
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#endif /* TRUSTED_BOARD_BOOT */
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/* IO devices */
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static const io_dev_connector_t *fip_dev_con;
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static uintptr_t fip_dev_handle;
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static const io_dev_connector_t *memmap_dev_con;
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static uintptr_t memmap_dev_handle;
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static const io_dev_connector_t *sh_dev_con;
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static uintptr_t sh_dev_handle;
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static const io_block_spec_t fip_block_spec = {
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.offset = PLAT_QEMU_FIP_BASE,
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.length = PLAT_QEMU_FIP_MAX_SIZE
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};
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static const io_uuid_spec_t bl2_uuid_spec = {
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.uuid = UUID_TRUSTED_BOOT_FIRMWARE_BL2,
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};
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static const io_uuid_spec_t bl31_uuid_spec = {
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.uuid = UUID_EL3_RUNTIME_FIRMWARE_BL31,
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};
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static const io_uuid_spec_t bl32_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32,
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};
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static const io_uuid_spec_t bl32_extra1_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA1,
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};
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static const io_uuid_spec_t bl32_extra2_uuid_spec = {
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.uuid = UUID_SECURE_PAYLOAD_BL32_EXTRA2,
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};
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static const io_uuid_spec_t bl33_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FIRMWARE_BL33,
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};
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#if TRUSTED_BOARD_BOOT
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static const io_uuid_spec_t tb_fw_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_BOOT_FW_CERT,
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};
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static const io_uuid_spec_t trusted_key_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_KEY_CERT,
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};
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static const io_uuid_spec_t soc_fw_key_cert_uuid_spec = {
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.uuid = UUID_SOC_FW_KEY_CERT,
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};
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static const io_uuid_spec_t tos_fw_key_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_OS_FW_KEY_CERT,
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};
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static const io_uuid_spec_t nt_fw_key_cert_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FW_KEY_CERT,
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};
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static const io_uuid_spec_t soc_fw_cert_uuid_spec = {
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.uuid = UUID_SOC_FW_CONTENT_CERT,
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};
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static const io_uuid_spec_t tos_fw_cert_uuid_spec = {
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.uuid = UUID_TRUSTED_OS_FW_CONTENT_CERT,
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};
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static const io_uuid_spec_t nt_fw_cert_uuid_spec = {
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.uuid = UUID_NON_TRUSTED_FW_CONTENT_CERT,
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};
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#endif /* TRUSTED_BOARD_BOOT */
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static const io_file_spec_t sh_file_spec[] = {
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[BL2_IMAGE_ID] = {
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.path = BL2_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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[BL31_IMAGE_ID] = {
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.path = BL31_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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[BL32_IMAGE_ID] = {
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.path = BL32_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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[BL32_EXTRA1_IMAGE_ID] = {
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.path = BL32_EXTRA1_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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[BL32_EXTRA2_IMAGE_ID] = {
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.path = BL32_EXTRA2_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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[BL33_IMAGE_ID] = {
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.path = BL33_IMAGE_NAME,
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.mode = FOPEN_MODE_RB
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},
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#if TRUSTED_BOARD_BOOT
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[TRUSTED_BOOT_FW_CERT_ID] = {
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.path = TRUSTED_BOOT_FW_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[TRUSTED_KEY_CERT_ID] = {
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.path = TRUSTED_KEY_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[SOC_FW_KEY_CERT_ID] = {
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.path = SOC_FW_KEY_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[TRUSTED_OS_FW_KEY_CERT_ID] = {
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.path = TOS_FW_KEY_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[NON_TRUSTED_FW_KEY_CERT_ID] = {
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.path = NT_FW_KEY_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[SOC_FW_CONTENT_CERT_ID] = {
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.path = SOC_FW_CONTENT_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[TRUSTED_OS_FW_CONTENT_CERT_ID] = {
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.path = TOS_FW_CONTENT_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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[NON_TRUSTED_FW_CONTENT_CERT_ID] = {
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.path = NT_FW_CONTENT_CERT_NAME,
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.mode = FOPEN_MODE_RB
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},
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#endif /* TRUSTED_BOARD_BOOT */
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};
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static int open_fip(const uintptr_t spec);
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static int open_memmap(const uintptr_t spec);
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struct plat_io_policy {
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uintptr_t *dev_handle;
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uintptr_t image_spec;
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int (*check)(const uintptr_t spec);
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};
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/* By default, ARM platforms load images from the FIP */
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static const struct plat_io_policy policies[] = {
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[FIP_IMAGE_ID] = {
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&memmap_dev_handle,
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(uintptr_t)&fip_block_spec,
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open_memmap
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},
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[BL2_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl2_uuid_spec,
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open_fip
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},
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[BL31_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl31_uuid_spec,
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open_fip
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},
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[BL32_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_uuid_spec,
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open_fip
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},
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[BL32_EXTRA1_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_extra1_uuid_spec,
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open_fip
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},
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[BL32_EXTRA2_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl32_extra2_uuid_spec,
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open_fip
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},
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[BL33_IMAGE_ID] = {
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&fip_dev_handle,
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(uintptr_t)&bl33_uuid_spec,
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open_fip
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},
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#if TRUSTED_BOARD_BOOT
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[TRUSTED_BOOT_FW_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&tb_fw_cert_uuid_spec,
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open_fip
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},
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[TRUSTED_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&trusted_key_cert_uuid_spec,
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open_fip
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},
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[SOC_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&soc_fw_key_cert_uuid_spec,
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open_fip
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},
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[TRUSTED_OS_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&tos_fw_key_cert_uuid_spec,
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open_fip
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},
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[NON_TRUSTED_FW_KEY_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&nt_fw_key_cert_uuid_spec,
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open_fip
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},
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[SOC_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&soc_fw_cert_uuid_spec,
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open_fip
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},
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[TRUSTED_OS_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&tos_fw_cert_uuid_spec,
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open_fip
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},
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[NON_TRUSTED_FW_CONTENT_CERT_ID] = {
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&fip_dev_handle,
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(uintptr_t)&nt_fw_cert_uuid_spec,
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open_fip
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},
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#endif /* TRUSTED_BOARD_BOOT */
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};
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static int open_fip(const uintptr_t spec)
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{
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int result;
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uintptr_t local_image_handle;
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/* See if a Firmware Image Package is available */
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result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
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if (result == 0) {
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result = io_open(fip_dev_handle, spec, &local_image_handle);
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if (result == 0) {
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VERBOSE("Using FIP\n");
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io_close(local_image_handle);
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}
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}
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return result;
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}
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static int open_memmap(const uintptr_t spec)
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{
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int result;
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uintptr_t local_image_handle;
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result = io_dev_init(memmap_dev_handle, (uintptr_t)NULL);
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if (result == 0) {
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result = io_open(memmap_dev_handle, spec, &local_image_handle);
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if (result == 0) {
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VERBOSE("Using Memmap\n");
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io_close(local_image_handle);
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}
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}
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return result;
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}
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static int open_semihosting(const uintptr_t spec)
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{
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int result;
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uintptr_t local_image_handle;
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/* See if the file exists on semi-hosting.*/
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result = io_dev_init(sh_dev_handle, (uintptr_t)NULL);
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if (result == 0) {
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result = io_open(sh_dev_handle, spec, &local_image_handle);
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if (result == 0) {
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VERBOSE("Using Semi-hosting IO\n");
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io_close(local_image_handle);
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}
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}
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return result;
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}
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void plat_qemu_io_setup(void)
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{
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int io_result;
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io_result = register_io_dev_fip(&fip_dev_con);
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assert(io_result == 0);
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io_result = register_io_dev_memmap(&memmap_dev_con);
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assert(io_result == 0);
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/* Open connections to devices and cache the handles */
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io_result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
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&fip_dev_handle);
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assert(io_result == 0);
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io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
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&memmap_dev_handle);
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assert(io_result == 0);
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/* Register the additional IO devices on this platform */
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io_result = register_io_dev_sh(&sh_dev_con);
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assert(io_result == 0);
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/* Open connections to devices and cache the handles */
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io_result = io_dev_open(sh_dev_con, (uintptr_t)NULL, &sh_dev_handle);
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assert(io_result == 0);
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/* Ignore improbable errors in release builds */
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(void)io_result;
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}
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static int get_alt_image_source(unsigned int image_id, uintptr_t *dev_handle,
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uintptr_t *image_spec)
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{
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int result = open_semihosting((const uintptr_t)&sh_file_spec[image_id]);
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if (result == 0) {
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*dev_handle = sh_dev_handle;
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*image_spec = (uintptr_t)&sh_file_spec[image_id];
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}
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return result;
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}
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/*
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* Return an IO device handle and specification which can be used to access
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* an image. Use this to enforce platform load policy
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*/
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int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
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uintptr_t *image_spec)
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{
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int result;
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const struct plat_io_policy *policy;
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assert(image_id < ARRAY_SIZE(policies));
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policy = &policies[image_id];
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result = policy->check(policy->image_spec);
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if (result == 0) {
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*image_spec = policy->image_spec;
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*dev_handle = *(policy->dev_handle);
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} else {
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VERBOSE("Trying alternative IO\n");
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result = get_alt_image_source(image_id, dev_handle, image_spec);
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}
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return result;
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}
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