ACPI: make some IO ports off-limits to AML
authorLen Brown <len.brown@intel.com>
Wed, 4 Feb 2009 03:52:12 +0000 (22:52 -0500)
committerLen Brown <len.brown@intel.com>
Wed, 4 Feb 2009 03:52:12 +0000 (22:52 -0500)
commit5ec5d38a1c8af255ffc481c81eef13e9155524b3
treec87bd7615c56c587c58da20b8bd2775d6010aec1
parent3e0676a9b699d12b2bd0a8807459ac4277b181fc
ACPI: make some IO ports off-limits to AML

ACPICA exports acpi_os_validate_address() so the OS
can prevent BIOS AML from accessing specified addresses.

Start using this interface to prevent AML from accessing
some well known IO addresses that the OS "owns".

Signed-off-by: Len Brown <len.brown@intel.com>
drivers/acpi/osl.c