6296ca8ad9
CBFS_VERIFICATION requires the CBFS metadata hash anchor to be linked into an uncompressed stage, but for platforms using COMPRESS_BOOTBLOCK, this is only the decompressor stage. The first CBFS accesses are made in the bootblock stage after decompression, so if we want to make CBFS_VERIFICATION work on those platforms, we have to pass the metadata hash anchor from the decompressor into the bootblock. This patch does just that. (Note that this relies on the decompressor data remaining valid in memory for as long as the metadata hash anchor is needed. This is always true even for OVERLAP_DECOMPRESSOR_ROMSTAGE() situations because the FMAP and CBFS metadata necessarily need to have finished verification before a new stage could be loaded.) Signed-off-by: Julius Werner <jwerner@chromium.org> Change-Id: I2e6d7384cfb8339a24369eb6c01fc12f911c974e Reviewed-on: https://review.coreboot.org/c/coreboot/+/52085 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef __BOOTBLOCK_COMMON_H
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#define __BOOTBLOCK_COMMON_H
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#include <arch/cpu.h>
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#include <main_decl.h>
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#include <timestamp.h>
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#include <types.h>
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/*
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* These are defined as weak no-ops that can be overridden by mainboard/SoC.
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* The 'early' variants are called prior to console initialization. Also, the
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* SoC functions are called prior to the mainboard functions.
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*/
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void decompressor_soc_init(void);
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void bootblock_mainboard_early_init(void);
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void bootblock_mainboard_init(void);
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void bootblock_soc_early_init(void);
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void bootblock_soc_init(void);
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/*
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* C code entry point for the boot block.
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*/
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asmlinkage void bootblock_c_entry(uint64_t base_timestamp);
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asmlinkage void bootblock_c_entry_bist(uint64_t base_timestamp, uint32_t bist);
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/* To be used when APs execute through bootblock too. */
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asmlinkage void ap_bootblock_c_entry(void);
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void bootblock_main_with_basetime(uint64_t base_timestamp);
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void bootblock_main_with_timestamp(uint64_t base_timestamp,
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struct timestamp_entry *timestamps, size_t num_timestamps);
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/* This is the argument structure passed from decompressor to bootblock. */
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struct bootblock_arg {
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uint64_t base_timestamp;
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void *metadata_hash_anchor;
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uint32_t num_timestamps;
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struct timestamp_entry timestamps[];
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};
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#endif /* __BOOTBLOCK_COMMON_H */
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