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authorLen Brown <len.brown@intel.com>2006-01-25 23:47:36 -0500
committerLen Brown <len.brown@intel.com>2006-03-31 01:02:39 -0500
commita1f9e65e2085e0a87f28a4d5a8ae43b32c087f24 (patch)
tree153b66f46d752f45057472b3e64e8c2ac73407c1 /Documentation/kernel-parameters.txt
parent1fee94034917aa711fcbd4ebf4c36f7ebd9fa7d6 (diff)
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[ACPI] document cmdline acpi_os_name=
This can sometimes be used to work around broken BIOS. Use "Microsoft Windows" to take the same path through the BIOS as Windows98 would. The default is "Microsoft Windows NT", which is what NT and later versions of Windows use, and is the most tested path through most BIOS. Set it to anything else, including "Linux", at your own risk, as it seems that virtually no BIOS has been tested with anything but the two options above. Note that this uses the legacy _OS interface, so we don't expect this to ever change. Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
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1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index f8cb55c30b0f..78eb66b8619c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -139,6 +139,9 @@ running once the system is up.
acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
Format: <irq>,<irq>...
+ acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
+ Format: To spoof as Windows 98: ="Microsoft Windows"
+
acpi_osi= [HW,ACPI] empty param disables _OSI
acpi_serialize [HW,ACPI] force serialization of AML methods
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