/* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> #include <arch/exception.h> #include <bootblock_common.h> #include <console/console.h> #include <delay.h> #include <metadata_hash.h> #include <option.h> #include <post.h> #include <program_loading.h> #include <security/tpm/tspi.h> #include <symbols.h> #include <timestamp.h> __weak void bootblock_mainboard_early_init(void) { /* no-op */ } __weak void bootblock_soc_early_init(void) { /* do nothing */ } __weak void bootblock_soc_init(void) { /* do nothing */ } __weak void bootblock_mainboard_init(void) { /* do nothing */ } /* * This is a the same as the bootblock main(), with the difference that it does * not collect a timestamp. Instead it accepts the initial timestamp and * possibly additional timestamp entries as arguments. This can be used in cases * where earlier stamps are available. Note that this function is designed to be * entered from C code. This function assumes that the timer has already been * initialized, so it does not call init_timer(). */ void bootblock_main_with_timestamp(uint64_t base_timestamp, struct timestamp_entry *timestamps, size_t num_timestamps) { /* Initialize timestamps if we have TIMESTAMP region in memlayout.ld. */ if (CONFIG(COLLECT_TIMESTAMPS) && REGION_SIZE(timestamp) > 0) { int i; timestamp_init(base_timestamp); for (i = 0; i < num_timestamps; i++) timestamp_add(timestamps[i].entry_id, timestamps[i].entry_stamp); } timestamp_add_now(TS_BOOTBLOCK_START); bootblock_soc_early_init(); bootblock_mainboard_early_init(); if (CONFIG(USE_OPTION_TABLE)) sanitize_cmos(); if (CONFIG(CMOS_POST)) cmos_post_init(); if (CONFIG(BOOTBLOCK_CONSOLE)) { console_init(); exception_init(); } bootblock_soc_init(); bootblock_mainboard_init(); if (CONFIG(TPM_MEASURED_BOOT_INIT_BOOTBLOCK)) { int s3resume = acpi_is_wakeup_s3(); tpm_setup(s3resume); } timestamp_add_now(TS_BOOTBLOCK_END); run_romstage(); } void bootblock_main_with_basetime(uint64_t base_timestamp) { bootblock_main_with_timestamp(base_timestamp, NULL, 0); } void main(void) { uint64_t base_timestamp = 0; init_timer(); if (CONFIG(COLLECT_TIMESTAMPS)) base_timestamp = timestamp_get(); bootblock_main_with_timestamp(base_timestamp, NULL, 0); } #if CONFIG(COMPRESS_BOOTBLOCK) /* * This is the bootblock entry point when it is run after a decompressor stage. * For non-decompressor builds, _start is generally defined in architecture- * specific assembly code. In decompressor builds that architecture * initialization code already ran in the decompressor, so the bootblock can * start straight into common code with a C environment. */ void _start(struct bootblock_arg *arg); void _start(struct bootblock_arg *arg) { if (CONFIG(CBFS_VERIFICATION)) metadata_hash_import_anchor(arg->metadata_hash_anchor); bootblock_main_with_timestamp(arg->base_timestamp, arg->timestamps, arg->num_timestamps); } #endif