1 files changed, 21 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b874771385cd..fc99075e0af4 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -335,6 +335,12 @@ running once the system is up.
                         timesource is not avalible, it defaults to PIT.
                         Format: { pit | tsc | cyclone | pmtmr }
 
+        disable_8254_timer
+        enable_8254_timer
+                        [IA32/X86_64] Disable/Enable interrupt 0 timer routing
+                        over the 8254 in addition to over the IO-APIC. The
+                        kernel tries to set a sensible default.
+
         hpet=           [IA-32,HPET] option to disable HPET and use PIT.
                         Format: disable
 
@@ -1034,6 +1040,8 @@ running once the system is up.
 
         nomce           [IA-32] Machine Check Exception
 
+        nomca           [IA-64] Disable machine check abort handling
+
         noresidual      [PPC] Don't use residual data on PReP machines.
 
         noresume        [SWSUSP] Disables resume and restores original swap
@@ -1282,6 +1290,19 @@ running once the system is up.
                         New name for the ramdisk parameter.
                         See Documentation/ramdisk.txt.
 
+        rcu.blimit=     [KNL,BOOT] Set maximum number of finished
+                        RCU callbacks to process in one batch.
+
+        rcu.qhimark=    [KNL,BOOT] Set threshold of queued
+                        RCU callbacks over which batch limiting is disabled.
+
+        rcu.qlowmark=   [KNL,BOOT] Set threshold of queued
+                        RCU callbacks below which batch limiting is re-enabled.
+
+        rcu.rsinterval= [KNL,BOOT,SMP] Set the number of additional
+                        RCU callbacks to queued before forcing reschedule
+                        on all cpus.
+
         rdinit=         [KNL]
                         Format: <full_path>
                         Run specified binary instead of /init from the ramdisk,