Revision as of 18:54, 1 January 2015 (view source) osdev>Sortie m (s/dword/uint32_t/g) ← Older edit		Revision as of 22:25, 20 March 2015 (view source) osdev>Mariuszp No edit summary Newer edit →
Line 10: uint8_t Revision; uint32_t RsdtAddress; } __attribute__ ((packed)); } </source> Line 23: uint8_t ExtendedChecksum; uint8_t reserved[3]; } __attribute__ ((packed)); }; </source> ==Detecting the RSDP== 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 ~~0x040E~~0x40:0x0E, which translates to the protected/long mode address 0x4000E), 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. ==Validating the RSDP==

RSDP: Difference between revisions

RSDP (view source)