tree 1933d123657a20d175d18eb6802ac66fe1483bdd
parent 6656f3151fee53b0f4ed552065aff9b0fddd68bc
author Arthur Heymans <arthur@aheymans.xyz> 1686127559 +0200
committer Felix Held <felix-coreboot@felixheld.de> 1686770839 +0000

acpi: Add a debug option to print out tables in ACPICA compatible hex

Sometimes systems don't boot to the OS due to wrong ACPI tables.
Printing the tables in an ACPICA compatible format makes analysis of
ACPI tables easier.

The ACPICA format (acpidump, acpixtract) is the following:
"
FACS @ 0x0000000000000000
    0000: 46 41 43 53 40 00 00 00 E8 24 00 00 00 00 00 00  FACS@....$......
    0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    0020: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................

"

To achieve analyze ACPI tables capture the coreboot log between
"Printing ACPI in ACPICA compatible table" and "Done printing ACPI in
ACPICA compatible table". Remove the prefix "[SPEW ]  " and then call
'acpixtract -a dump' to extract all the tables. Then use 'iasl -d' on
the .dat files to decompile the tables.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I7b5d879014563f7a2e1f70c45cf871ba72f142dc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75677
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>