From ae00d812436dc968f4a5dea7757b6a94910b6dc4 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 29 May 2007 18:43:33 -0400 Subject: ACPI: extend "acpi_osi=" boot option The boot option "acpi_osi=" has always disabled Linux _OSI support, thus disabling all OS Interface strings which are advertised by Linux to the BIOS. Now... acpi_osi="string" adds the interface string, and acpi_osi="!string" invalidates the pre-defined interface string eg. acpi_osi="!Windows 2006" would disable Linux's claim of Vista compatibility. Signed-off-by: Len Brown --- Documentation/kernel-parameters.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation/kernel-parameters.txt') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index aae2282600ca..79150144dca9 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -170,7 +170,10 @@ and is between 256 and 4096 characters. It is defined in the file 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_osi= [HW,ACPI] Modify list of supported OS interface strings + acpi_osi="string1" # add string1 -- only one string + acpi_osi="!string2" # remove built-in string2 + acpi_osi= # disable all strings acpi_serialize [HW,ACPI] force serialization of AML methods -- cgit v1.2.2