summaryrefslogtreecommitdiff
path: root/Documentation/admin-guide
diff options
context:
space:
mode:
authorMichael Neuling <mikey@neuling.org>2019-05-13 15:39:10 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2019-07-01 14:06:16 +1000
commitba45cff610a4223ce3ad98a700a820e3d60e3f7c (patch)
tree993ea7285d05409c512ea21b1b3e03695995633c /Documentation/admin-guide
parent8b8dc695143642c6a8bee2242f2f7af4232298ab (diff)
powerpc: Document xive=off option
commit 243e25112d06 ("powerpc/xive: Native exploitation of the XIVE interrupt controller") added an option to turn off Linux native XIVE usage via the xive=off kernel command line option. This documents this option. Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Acked-by: Stewart Smith <stewart@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a4c3538857e9..7b15abf7db21 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5272,6 +5272,15 @@
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
+ xive= [PPC]
+ By default on POWER9 and above, the kernel will
+ natively use the XIVE interrupt controller. This option
+ allows the fallback firmware mode to be used:
+
+ off Fallback to firmware control of XIVE interrupt
+ controller on both pseries and powernv
+ platforms. Only useful on POWER9 and above.
+
xhci-hcd.quirks [USB,KNL]
A hex value specifying bitmask with supplemental xhci
host controller quirks. Meaning of each bit can be