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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 11:10:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 11:10:41 -0700
commitac3ee84c604502240122c47b52f0542ec8774f15 (patch)
treefa74b50e310af6cef3298a052514b2d42b260d6b /Documentation
parent90b9a32d8f441369b2f97a765d2d957b531eb653 (diff)
parent4fe1da4ebc18c4c42fa56c228447f68033fce5f0 (diff)
Merge branch 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: echi-dbgp: Add kernel debugger support for the usb debug port earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb kgdboc: Add ekgdboc for early use of the kernel debugger x86,early dr regs,kgdb: Allow kernel debugger early dr register access x86,kgdb: Implement early hardware breakpoint debugging x86, kgdb, init: Add early and late debug states x86, kgdb: early trap init for early debug
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index bdce359820bb..f5fce483930c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -713,6 +713,12 @@ and is between 256 and 4096 characters. It is defined in the file
The VGA output is eventually overwritten by the real
console.
+ ekgdboc= [X86,KGDB] Allow early kernel console debugging
+ ekgdboc=kbd
+
+ This is desgined to be used in conjunction with
+ the boot argument: earlyprintk=vga
+
eata= [HW,SCSI]
edd= [EDD]
@@ -1121,6 +1127,17 @@ and is between 256 and 4096 characters. It is defined in the file
use the HighMem zone if it exists, and the Normal
zone if it does not.
+ kgdbdbgp= [KGDB,HW] kgdb over EHCI usb debug port.
+ Format: <Controller#>[,poll interval]
+ The controller # is the number of the ehci usb debug
+ port as it is probed via PCI. The poll interval is
+ optional and is the number seconds in between
+ each poll cycle to the debug port in case you need
+ the functionality for interrupting the kernel with
+ gdb or control-c on the dbgp connection. When
+ not using this parameter you use sysrq-g to break into
+ the kernel debugger.
+
kgdboc= [KGDB,HW] kgdb over consoles.
Requires a tty driver that supports console polling,
or a supported polling keyboard driver (non-usb).