ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"

On some boxes there exist both RSDT and XSDT table. But unfortunately
sometimes there exists the following error when XSDT table is used:
   a. 32/64X address mismatch
   b. The 32/64X FACS address mismatch

   In such case the boot option of "acpi=rsdt" is provided so that
RSDT is tried instead of XSDT table when the system can't work well.

http://bugzilla.kernel.org/show_bug.cgi?id=8246

Signed-off-by: Zhao Yakui <[email protected]>
cc:Thomas Renninger <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Zhao Yakui 2008-12-17 16:55:18 +08:00 • committed by Len Brown
commit 237889bf0a
5 changed files with 10 additions and 2 deletions

View file

@ -48,6 +48,7 @@
#include "actypes.h"
#include "actbl.h"
extern u32 acpi_rsdt_forced;
/*
* Global interfaces
*/