1 files changed, 103 insertions, 9 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 25d298517104..84c3bd05c639 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -48,6 +48,7 @@ parameter is applicable:
         ISAPNP  ISA PnP code is enabled.
         ISDN    Appropriate ISDN support is enabled.
         JOY     Appropriate joystick support is enabled.
+        LIBATA  Libata driver is enabled
         LP      Printer support is enabled.
         LOOP    Loopback device support is enabled.
         M68k    M68k architecture is enabled.
@@ -78,6 +79,7 @@ parameter is applicable:
                         Documentation/scsi/.
         SELINUX SELinux support is enabled.
         SERIAL  Serial support is enabled.
+        SH      SuperH architecture is enabled.
         SMP     The kernel is an SMP kernel.
         SPARC   Sparc architecture is enabled.
         SWSUSP  Software suspend is enabled.
@@ -104,6 +106,9 @@ loader, and have no meaning to the kernel directly.
 Do not modify the syntax of boot loader parameters without extreme
 need or coordination with <Documentation/i386/boot.txt>.
 
+There are also arch-specific kernel-parameters not documented here.
+See for example <Documentation/x86_64/boot-options.txt>.
+
 Note that ALL kernel parameters listed below are CASE SENSITIVE, and that
 a trailing = on the name of any parameter states that that parameter will
 be entered as an environment variable, whereas its absence indicates that
@@ -121,7 +126,8 @@ and is between 256 and 4096 characters. It is defined in the file
                         See header of drivers/scsi/53c7xx.c.
                         See also Documentation/scsi/ncr53c7xx.txt.
 
-        acpi=           [HW,ACPI] Advanced Configuration and Power Interface
+        acpi=           [HW,ACPI,X86-64,i386]
+                        Advanced Configuration and Power Interface
                         Format: { force | off | ht | strict | noirq }
                         force -- enable ACPI if default was off
                         off -- disable ACPI if default was on
@@ -132,6 +138,12 @@ and is between 256 and 4096 characters. It is defined in the file
 
                         See also Documentation/pm.txt, pci=noacpi
 
+        acpi_apic_instance=     [ACPI, IOAPIC]
+                        Format: <int>
+                        2: use 2nd APIC table, if available
+                        1,0: use 1st APIC table
+                        default: 0
+
         acpi_sleep=     [HW,ACPI] Sleep options
                         Format: { s3_bios, s3_mode }
                         See Documentation/power/video.txt
@@ -169,19 +181,41 @@ and is between 256 and 4096 characters. It is defined in the file
                         that require a timer override, but don't have
                         HPET
 
-        acpi_dbg_layer= [HW,ACPI]
+        acpi.debug_layer=       [HW,ACPI]
                         Format: <int>
                         Each bit of the <int> indicates an ACPI debug layer,
                         1: enable, 0: disable. It is useful for boot time
                         debugging. After system has booted up, it can be set
-                        via /proc/acpi/debug_layer.
-
-        acpi_dbg_level= [HW,ACPI]
+                        via /sys/module/acpi/parameters/debug_layer.
+                        CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
+                        Available bits (add the numbers together) to enable debug output
+                        for specific parts of the ACPI subsystem:
+                        0x01 utilities 0x02 hardware 0x04 events 0x08 tables
+                        0x10 namespace 0x20 parser 0x40 dispatcher
+                        0x80 executer 0x100 resources 0x200 acpica debugger
+                        0x400 os services 0x800 acpica disassembler.
+                        The number can be in decimal or prefixed with 0x in hex.
+                        Warning: Many of these options can produce a lot of
+                        output and make your system unusable. Be very careful.
+
+        acpi.debug_level=       [HW,ACPI]
                         Format: <int>
                         Each bit of the <int> indicates an ACPI debug level,
                         1: enable, 0: disable. It is useful for boot time
                         debugging. After system has booted up, it can be set
-                        via /proc/acpi/debug_level.
+                        via /sys/module/acpi/parameters/debug_level.
+                        CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
+                        Available bits (add the numbers together) to enable different
+                        debug output levels of the ACPI subsystem:
+                        0x01 error 0x02 warn 0x04 init 0x08 debug object
+                        0x10 info 0x20 init names 0x40 parse 0x80 load
+                        0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
+                        0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
+                        0x10000 resources 0x20000 user requests 0x40000 package.
+                        The number can be in decimal or prefixed with 0x in hex.
+                        Warning: Many of these options can produce a lot of
+                        output and make your system unusable. Be very careful.
+
 
         acpi_fake_ecdt  [HW,ACPI] Workaround failure due to BIOS lacking ECDT
 
@@ -361,6 +395,11 @@ and is between 256 and 4096 characters. It is defined in the file
                         clocksource is not available, it defaults to PIT.
                         Format: { pit | tsc | cyclone | pmtmr }
 
+        code_bytes      [IA32] How many bytes of object code to print in an
+                        oops report.
+                        Range: 0 - 8192
+                        Default: 64
+
         disable_8254_timer
         enable_8254_timer
                         [IA32/X86_64] Disable/Enable interrupt 0 timer routing
@@ -476,7 +515,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         dtc3181e=       [HW,SCSI]
 
-        earlyprintk=    [IA-32,X86-64]
+        earlyprintk=    [IA-32,X86-64,SH]
                         earlyprintk=vga
                         earlyprintk=serial[,ttySn[,baudrate]]
 
@@ -601,6 +640,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         highmem otherwise. This also works to reduce highmem
                         size on bigger boxes.
 
+        highres=        [KNL] Enable/disable high resolution timer mode.
+                        Valid parameters: "on", "off"
+                        Default: "on"
+
         hisax=          [HW,ISDN]
                         See Documentation/isdn/README.HiSax.
 
@@ -759,6 +802,9 @@ and is between 256 and 4096 characters. It is defined in the file
         lapic           [IA-32,APIC] Enable the local APIC even if BIOS
                         disabled it.
 
+        lapic_timer_c2_ok       [IA-32,x86-64,APIC] trust the local apic timer in
+                        C2 power state.
+
         lasi=           [HW,SCSI] PARISC LASI driver for the 53c700 chip
                         Format: addr:<io>,irq:<irq>
 
@@ -851,7 +897,14 @@ 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
+                        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.
 
         max_addr=[KMG]  [KNL,BOOT,ia64] All physical memory greater than or
                         equal to this physical address is ignored.
@@ -1026,6 +1079,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         emulation library even if a 387 maths coprocessor
                         is present.
 
+        noacpi          [LIBATA] Disables use of ACPI in libata suspend/resume
+                        when set.
+                        Format: <int>
+
         noaliencache    [MM, NUMA] Disables the allcoation of alien caches in
                         the slab allocator.  Saves per-node memory, but will
                         impact performance on real NUMA hardware.
@@ -1070,6 +1127,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         in certain environments such as networked servers or
                         real-time systems.
 
+        nohz=           [KNL] Boottime enable/disable dynamic ticks
+                        Valid arguments: on, off
+                        Default: on
+
         noirqbalance    [IA-32,SMP,KNL] Disable kernel irq balancing
 
         noirqdebug      [IA-32] Disables the code which attempts to detect and
@@ -1087,6 +1148,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nolapic         [IA-32,APIC] Do not enable or use the local APIC.
 
+        nolapic_timer   [IA-32,APIC] Do not use the local APIC timer.
+
         noltlbs         [PPC] Do not use large page/tlb entries for kernel
                         lowmem mapping on PPC40x.
 
@@ -1259,6 +1322,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                 This sorting is done to get a device
                                 order compatible with older (<= 2.4) kernels.
                 nobfsort        Don't sort PCI devices into breadth-first order.
+                cbiosize=nn[KMG]        The fixed amount of bus space which is
+                                reserved for the CardBus bridge's IO window.
+                                The default value is 256 bytes.
+                cbmemsize=nn[KMG]       The fixed amount of bus space which is
+                                reserved for the CardBus bridge's memory
+                                window. The default value is 64 megabytes.
 
         pcmv=           [HW,PCMCIA] BadgePAD 4
 
@@ -1396,6 +1465,8 @@ and is between 256 and 4096 characters. It is defined in the file
                         in <PAGE_SIZE> units (needed only for swap files).
                         See  Documentation/power/swsusp-and-swap-files.txt
 
+        retain_initrd   [RAM] Keep initrd memory after extraction
+
         rhash_entries=  [KNL,NET]
                         Set number of hash buckets for route cache
 
@@ -1649,6 +1720,22 @@ and is between 256 and 4096 characters. It is defined in the file
         stifb=          [HW]
                         Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]]
 
+        sunrpc.pool_mode=
+                        [NFS]
+                        Control how the NFS server code allocates CPUs to
+                        service thread pools.  Depending on how many NICs
+                        you have and where their interrupts are bound, this
+                        option will affect which CPUs will do NFS serving.
+                        Note: this parameter cannot be changed while the
+                        NFS server is running.
+
+                        auto        the server chooses an appropriate mode
+                                    automatically using heuristics
+                        global      a single global pool contains all CPUs
+                        percpu      one pool for each CPU
+                        pernode     one pool for each NUMA node (equivalent
+                                    to global on non-NUMA machines)
+
         swiotlb=        [IA-64] Number of I/O TLB slabs
 
         switches=       [HW,M68k]
@@ -1722,10 +1809,17 @@ and is between 256 and 4096 characters. It is defined in the file
                         Note that genuine overcurrent events won't be
                         reported either.
 
+        usbcore.autosuspend=
+                        [USB] The autosuspend time delay (in seconds) used
+                        for newly-detected USB devices (default 2).  This
+                        is the time required before an idle device will be
+                        autosuspended.  Devices for which the delay is set
+                        to a negative value won't be autosuspended at all.
+
         usbhid.mousepoll=
                         [USBHID] The interval which mice are to be polled at.
 
-        vdso=           [IA-32]
+        vdso=           [IA-32,SH]
                         vdso=1: enable VDSO (default)
                         vdso=0: disable VDSO mapping