diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 23:00:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 23:00:21 -0700 |
| commit | 7d6a31c394722c914c61292b457e1999c8bef5ea (patch) | |
| tree | 3e7e1544d95a7839e651dd5736bb5b325b067c7d /Documentation/admin-guide | |
| parent | 2cc12e2e8cb65aec9a95a3d3de4d70e7b6b8c881 (diff) | |
| parent | 1b326277798aa820c1043617786609b9bb4bee78 (diff) | |
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.txt | 1 |
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 |