diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Kconfig | 13 | ||||
| -rw-r--r-- | src/acpi/acpi.c | 71 |
2 files changed, 71 insertions, 13 deletions
diff --git a/src/Kconfig b/src/Kconfig index f8d7f769bc..8e72f2deb5 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -1294,6 +1294,19 @@ config EM100 mainboard code supports this. On supported Intel platforms this works by changing the settings in the descriptor.bin file. +config DEBUG_ACPICA_COMPATIBLE + bool "Print out ACPI tables in ACPICA compatible format" + depends on HAVE_ACPI_TABLES + help + Select this to print out ACPI tables in an ACPICA compatible + format. Set the console loglevel to verbosity 'SPEW'. + To 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 issue 'acpixtract -a dump' + to extract all the tables. Then use 'iasl -d' on the .dat files + to decompile the tables. + endmenu ############################################################################### diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c index 6ee5cf4a7d..aa1cd1cdd2 100644 --- a/src/acpi/acpi.c +++ b/src/acpi/acpi.c @@ -1822,23 +1822,55 @@ uintptr_t get_coreboot_rsdp(void) return coreboot_rsdp; } +static void acpixtract_compatible_hexdump(const void *memory, size_t length) +{ + size_t i, j; + uint8_t *line; + size_t num_bytes; + + for (i = 0; i < length; i += 16) { + num_bytes = MIN(length - i, 16); + line = ((uint8_t *)memory) + i; + + printk(BIOS_SPEW, " %04zX:", i); + for (j = 0; j < num_bytes; j++) + printk(BIOS_SPEW, " %02x", line[j]); + for (; j < 16; j++) + printk(BIOS_SPEW, " "); + printk(BIOS_SPEW, " "); + for (j = 0; j < num_bytes; j++) + printk(BIOS_SPEW, "%c", + isprint(line[j]) ? line[j] : '.'); + printk(BIOS_SPEW, "\n"); + } +} + +static void acpidump_print(void *table_ptr) +{ + const acpi_header_t *header = (acpi_header_t *)table_ptr; + const size_t table_size = header->length; + printk(BIOS_SPEW, "%.4s @ 0x0000000000000000\n", header->signature); + acpixtract_compatible_hexdump(table_ptr, table_size); + printk(BIOS_SPEW, "\n"); +} + unsigned long write_acpi_tables(unsigned long start) { unsigned long current; acpi_rsdp_t *rsdp; - acpi_rsdt_t *rsdt; - acpi_xsdt_t *xsdt; - acpi_fadt_t *fadt; - acpi_facs_t *facs; - acpi_header_t *slic_file, *slic; - acpi_header_t *ssdt; - acpi_header_t *dsdt_file, *dsdt; - acpi_mcfg_t *mcfg; - acpi_tcpa_t *tcpa; - acpi_tpm2_t *tpm2; - acpi_madt_t *madt; - acpi_lpit_t *lpit; - acpi_bert_t *bert; + acpi_rsdt_t *rsdt = NULL; + acpi_xsdt_t *xsdt = NULL; + acpi_fadt_t *fadt = NULL; + acpi_facs_t *facs = NULL; + acpi_header_t *slic_file, *slic = NULL; + acpi_header_t *ssdt = NULL; + acpi_header_t *dsdt_file, *dsdt = NULL; + acpi_mcfg_t *mcfg = NULL; + acpi_tcpa_t *tcpa = NULL; + acpi_tpm2_t *tpm2 = NULL; + acpi_madt_t *madt = NULL; + acpi_lpit_t *lpit = NULL; + acpi_bert_t *bert = NULL; struct device *dev; unsigned long fw; size_t slic_size, dsdt_size; @@ -2101,6 +2133,19 @@ unsigned long write_acpi_tables(unsigned long start) } printk(BIOS_INFO, "ACPI: done.\n"); + + if (CONFIG(DEBUG_ACPICA_COMPATIBLE)) { + printk(BIOS_DEBUG, "Printing ACPI tables in ACPICA compatible format\n"); + void *acpi_tables[] = { rsdt, xsdt, fadt, facs, slic, ssdt, dsdt, + mcfg, tcpa, tpm2, madt, lpit, bert }; + for (size_t i = 0; i < ARRAY_SIZE(acpi_tables); i++) { + if (acpi_tables[i] == NULL) + continue; + acpidump_print(acpi_tables[i]); + } + printk(BIOS_DEBUG, "Done printing ACPI tables in ACPICA compatible format\n"); + } + return current; } |