summaryrefslogtreecommitdiff
path: root/Documentation/admin-guide/kernel-parameters.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index ea81784be981..a3ea40b22fb9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2749,6 +2749,31 @@
kgdbwait [KGDB,EARLY] Stop kernel execution and enter the
kernel debugger at the earliest opportunity.
+ kho= [KEXEC,EARLY]
+ Format: { "0" | "1" | "off" | "on" | "y" | "n" }
+ Enables or disables Kexec HandOver.
+ "0" | "off" | "n" - kexec handover is disabled
+ "1" | "on" | "y" - kexec handover is enabled
+
+ kho_scratch= [KEXEC,EARLY]
+ Format: ll[KMG],mm[KMG],nn[KMG] | nn%
+ Defines the size of the KHO scratch region. The KHO
+ scratch regions are physically contiguous memory
+ ranges that can only be used for non-kernel
+ allocations. That way, even when memory is heavily
+ fragmented with handed over memory, the kexeced
+ kernel will always have enough contiguous ranges to
+ bootstrap itself.
+
+ It is possible to specify the exact amount of
+ memory in the form of "ll[KMG],mm[KMG],nn[KMG]"
+ where the first parameter defines the size of a low
+ memory scratch area, the second parameter defines
+ the size of a global scratch area and the third
+ parameter defines the size of additional per-node
+ scratch areas. The form "nn%" defines scale factor
+ (in percents) of memory that was used during boot.
+
kmac= [MIPS] Korina ethernet MAC address.
Configure the RouterBoard 532 series on-chip
Ethernet adapter MAC address.