Anonymous user
RSDP: Difference between revisions
added notice that the RSDP can be found in the EFI_SYSTEM_TABLE
| [unchecked revision] | [unchecked revision] |
No edit summary |
(added notice that the RSDP can be found in the EFI_SYSTEM_TABLE) |
||
Line 28:
The RSDP is either located within the first 1 KB of the [[EBDA]] (Extended BIOS Data Area) (a 2 byte real mode segment pointer to it is located at 0x40E), or in the memory region from 0x000E0000 to 0x000FFFFF (the main [[BIOS]] area below 1 MB). To find the table, the Operating System has to find the "RSD PTR " string (notice the last space character) in one of the two areas. This signature is always on a 16 byte boundary.
If you're using UEFI, you can find it somewhere in EFI_SYSTEM_TABLE. Thus, there's no need for searching the RAM.
==Validating the RSDP==
| |||