Merge remote branch 'tip/x86/tsc' into fortglx/2.6.38/tip/x86/tsc
[linux-2.6.git] / Documentation / kernel-parameters.txt
index 92e83e53148fe8b1d4848af9a8fd7442cc5624ba..c7c8eca5b2b359f98408acb016788e9005368938 100644 (file)
@@ -2467,12 +2467,13 @@ and is between 256 and 4096 characters. It is defined in the file
                        to facilitate early boot debugging.
                        See also Documentation/trace/events.txt
 
-       tsc=            Disable clocksource-must-verify flag for TSC.
+       tsc=            Disable clocksource stability checks for TSC.
                        Format: <string>
                        [x86] reliable: mark tsc clocksource as reliable, this
-                       disables clocksource verification at runtime.
-                       Used to enable high-resolution timer mode on older
-                       hardware, and in virtualized environment.
+                       disables clocksource verification at runtime, as well
+                       as the stability checks done at bootup. Used to enable
+                       high-resolution timer mode on older hardware, and in
+                       virtualized environment.
                        [x86] noirqtime: Do not use TSC to do irq accounting.
                        Used to run time disable IRQ_TIME_ACCOUNTING on any
                        platforms where RDTSC is slow and this accounting