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authorLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 09:00:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-02 09:00:21 +0300
commit7d6a31c394722c914c61292b457e1999c8bef5ea (patch)
tree3e7e1544d95a7839e651dd5736bb5b325b067c7d /Documentation/admin-guide
parent2cc12e2e8cb65aec9a95a3d3de4d70e7b6b8c881 (diff)
parent1b326277798aa820c1043617786609b9bb4bee78 (diff)
downloadlinux-7d6a31c394722c914c61292b457e1999c8bef5ea.tar.xz
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 debug updates from Ingo Molnar: "The biggest update is the addition of USB3 debug port based early-console. Greg was fine with the USB changes and with the routing of these patches: https://www.spinics.net/lists/linux-usb/msg155093.html" * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: usb/doc: Add document for USB3 debug port usage usb/serial: Add DBC debug device support to usb_debug x86/earlyprintk: Add support for earlyprintk via USB3 debug port usb/early: Add driver for xhci debug capability x86/timers: Add simple udelay calibration
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ba294509cd7e..8d676d2a48ac 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -988,6 +988,7 @@
earlyprintk=ttySn[,baudrate]
earlyprintk=dbgp[debugController#]
earlyprintk=pciserial,bus:device.function[,baudrate]
+ earlyprintk=xdbc[xhciController#]
earlyprintk is useful when the kernel crashes before
the normal console is initialized. It is not enabled by