kgdb: document parameters

document the kgdboc module/boot parameter.

Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index dafd001bf83339829c6409bec6e6a1ff2a73f9c1..c3de1767edd4975b239cc6e5c333404631f6e86a 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -928,6 +928,11 @@ and is between 256 and 4096 characters. It is defined in the file
        kstack=N        [X86-32,X86-64] Print N words from the kernel stack
                        in oops dumps.
 
+       kgdboc=         [HW] kgdb over consoles.
+                       Requires a tty driver that supports console polling.
+                       (only serial suported for now)
+                       Format: <serial_device>[,baud]
+
        l2cr=           [PPC]
 
        lapic           [X86-32,APIC] Enable the local APIC even if BIOS