diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 975f029be25c..4d175c751246 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -468,9 +468,6 @@ and is between 256 and 4096 characters. It is defined in the file Format: <first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>] - cpia_pp= [HW,PPT] - Format: { parport<nr> | auto | none } - crashkernel=nn[KMG]@ss[KMG] [KNL] Reserve a chunk of physical memory to hold a kernel to switch to with kexec on panic. @@ -952,14 +949,10 @@ and is between 256 and 4096 characters. It is defined in the file Format: <1-256> maxcpus= [SMP] Maximum number of processors that an SMP kernel - should make use of. - Using "nosmp" or "maxcpus=0" will disable SMP - entirely (the MPS table probe still happens, though). - A command-line option of "maxcpus=<NUM>", where <NUM> - is an integer greater than 0, limits the maximum number - of CPUs activated in SMP mode to <NUM>. - Using "maxcpus=1" on an SMP kernel is the trivial - case of an SMP kernel with only one CPU. + should make use of. maxcpus=n : n >= 0 limits the + kernel to using 'n' processors. n=0 is a special case, + it is equivalent to "nosmp", which also disables + the IO APIC. max_addr=[KMG] [KNL,BOOT,ia64] All physical memory greater than or equal to this physical address is ignored. @@ -1184,7 +1177,8 @@ and is between 256 and 4096 characters. It is defined in the file nosep [BUGS=X86-32] Disables x86 SYSENTER/SYSEXIT support. - nosmp [SMP] Tells an SMP kernel to act as a UP kernel. + nosmp [SMP] Tells an SMP kernel to act as a UP kernel, + and disable the IO APIC. legacy for "maxcpus=0". nosoftlockup [KNL] Disable the soft-lockup detector. @@ -1826,6 +1820,10 @@ and is between 256 and 4096 characters. It is defined in the file -1: disable all active trip points in all thermal zones <degrees C>: override all lowest active trip points + thermal.crt= [HW,ACPI] + -1: disable all critical trip points in all thermal zones + <degrees C>: lower all critical trip points + thermal.nocrt= [HW,ACPI] Set to disable actions on ACPI thermal zone critical and hot trip points. |