2.7 KiB
2.7 KiB
rsdp.h
The infrastructure to parse the Root System Description Pointer Table.
OSDev Wiki: RSDP
rsdp_descriptor_v1_T - struct [packed]
The RSDP Table used in ACPI v1.0
| Name | Type | Description |
|---|---|---|
| signature | char[8] | Needs to be "RSD PTR " (with the withespace at the end) |
| checksum | uint8_t | Used to validate the table |
| oem_id | char[6] | This string identifies the OEM |
| revision | uint8_t | Tells whether the RSDP is version 1 or 2+ |
| rsdt_address | uint32_t | The Physical Address of the RSDT |
rsdp_descriptor_v2_T - struct [packed]
The RSDP Table used in ACPI v2.0 or higher
| Name | Type | Description |
|---|---|---|
| descriptor_v1 | rsdp_descriptor_v1_T | A table in the format of the ACPI 1.0 specification |
| length | uint32_t | The size of the whole table |
| xsdt_address | uint64_t | The Address of the XSDT (when available this should be used instead of the RSDT) |
| checksum_extended | uint8_t | Used to calculate the checksum of the whole table |
| reserved | uint8_t[3] | Can be ignored |
rsdp_descriptor_v1_verify(descriptor) - function (bool)
Verifies the integrity of descriptor.
rsdp_descriptor_v2_verify(descriptor) - function (bool)
Verifies the integrity of descriptor.