diff options
Diffstat (limited to 'src/arch/i386/boot')
| -rw-r--r-- | src/arch/i386/boot/acpi.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/arch/i386/boot/acpi.c b/src/arch/i386/boot/acpi.c index e1734d80e7..b437e85229 100644 --- a/src/arch/i386/boot/acpi.c +++ b/src/arch/i386/boot/acpi.c @@ -65,6 +65,15 @@ void acpi_add_table(acpi_rsdt_t *rsdt, void *table) printk_warning("ACPI: could not add ACPI table to RSDT. failed.\n"); } +int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base, u16 seg_nr, u8 start, u8 end) { + mmconfig->base_address = base; + mmconfig->base_reserved = 0; + mmconfig->pci_segment_group_number = seg_nr; + mmconfig->start_bus_number = start; + mmconfig->end_bus_number = end; + return (sizeof(acpi_mcfg_mmconfig_t)); +} + int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic) { @@ -146,6 +155,31 @@ void acpi_create_madt(acpi_madt_t *madt) header->checksum = acpi_checksum((void *)madt, header->length); } +void acpi_create_mcfg(acpi_mcfg_t *mcfg) +{ + + acpi_header_t *header=&(mcfg->header); + unsigned long current=(unsigned long)mcfg+sizeof(acpi_mcfg_t); + + memset((void *)mcfg, 0, sizeof(acpi_mcfg_t)); + + /* fill out header fields */ + memcpy(header->signature, MCFG_NAME, 4); + memcpy(header->oem_id, OEM_ID, 6); + memcpy(header->oem_table_id, MCFG_TABLE, 8); + memcpy(header->asl_compiler_id, ASLC, 4); + + header->length = sizeof(acpi_mcfg_t); + header->revision = 1; + + current = acpi_fill_mcfg(current); + + /* recalculate length */ + header->length= current - (unsigned long)mcfg; + + header->checksum = acpi_checksum((void *)mcfg, header->length); +} + int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic) { lapic->type=0; |