problems with acpi_tb_validate_rsdt
Guys,
I have a problem. I have a bios ACPI 2.0 level Bios that has RSDT table
but NO xsdt table. This is allowed in the spec,
If you have no XSDT table, then you are to use the RSDT table.
If you have both, then it is required that you use the XSDT table, not make a copy of the XSDT from the RSDT table.
Look on page 98 of ACPIspec-2-0c where it says that
"5.2.7 Extended System Description Table (XSDT)
The XSDT provides identical functionality to the RSDT but accommodates physical addresses of DESCRIPTION HEADERs that are larger than 32-bits. Notice that both the XSDT and the RSDT can be pointed to by the RSDP structure. An ACPI 2.0-compatible OS must use the XSDT if present."
as it is now, with no XSDT table, the search for the RSDT simple walks memory and fails
Also, if the XSDT table is present, it appears to be deleted and NOT used. This is incorrect. It MUST be used over the RSDT.
Any comments on how to fix?
Good, bad, am I wrong? I am open to comments,
Chip
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Ralph "Chip" Blach chipper-r/[email protected] IBM Linux Technology Center Raleigh, North Carolina 919 543 1207 ------------------------------------------------------- This SF.Net email is sponsored by: NEC IT Guy Games. How far can you shotput a projector? How fast can you ride your desk chair down the office luge track? If you want to score the big prize, get to know the little guy. Play to win an NEC 61" plasma display: http://www.necitguy.com/?r=20