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| author | Michael Neuling <mikey@neuling.org> | 2019-05-13 07:39:10 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-07-01 06:06:16 +0200 |
| commit | ba45cff610a4223ce3ad98a700a820e3d60e3f7c (patch) | |
| tree | 993ea7285d05409c512ea21b1b3e03695995633c /Documentation | |
| parent | Merge branch 'fixes' into next (diff) | |
| download | linux-ba45cff610a4223ce3ad98a700a820e3d60e3f7c.tar.xz linux-ba45cff610a4223ce3ad98a700a820e3d60e3f7c.zip | |
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')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 9 |
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 |