From fa20efd2fcd9349770113c6f72fc76ce437b62f5 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Wed, 30 Jan 2008 13:31:17 +0100 Subject: x86: add ACPI reboot option Add the ability to reboot an x86_64 based machine using the RESET_REG in the FADT ACPI table. Signed-off-by: Aaron Durbin Cc: Len Brown Cc: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- Documentation/x86_64/boot-options.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation/x86_64') diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt index 945311840a10..d7a333258682 100644 --- a/Documentation/x86_64/boot-options.txt +++ b/Documentation/x86_64/boot-options.txt @@ -110,12 +110,15 @@ Idle loop Rebooting - reboot=b[ios] | t[riple] | k[bd] [, [w]arm | [c]old] + reboot=b[ios] | t[riple] | k[bd] | a[cpi] [, [w]arm | [c]old] bios Use the CPU reboot vector for warm reset warm Don't set the cold reboot flag cold Set the cold reboot flag triple Force a triple fault (init) kbd Use the keyboard controller. cold reset (default) + acpi Use the ACPI RESET_REG in the FADT. If ACPI is not configured or the + ACPI reset does not work, the reboot path attempts the reset using + the keyboard controller. Using warm reset will be much faster especially on big memory systems because the BIOS will not go through the memory check. -- cgit v1.2.3