1 files changed, 73 insertions, 23 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 6172e4360f60..fd5cac013037 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -17,6 +17,12 @@ are specified on the kernel command line with the module name plus
 
         usbcore.blinkenlights=1
 
+Hyphens (dashes) and underscores are equivalent in parameter names, so
+        log_buf_len=1M print-fatal-signals=1
+can also be entered as
+        log-buf-len=1M print_fatal_signals=1
+
+
 This document may not be entirely up to date and comprehensive. The command
 "modinfo -p ${modulename}" shows a current list of all parameters of a loadable
 module. Loadable modules, after being loaded into the running kernel, also
@@ -134,7 +140,7 @@ and is between 256 and 4096 characters. It is defined in the file
 ./include/asm/setup.h as COMMAND_LINE_SIZE.
 
 
-        acpi=           [HW,ACPI,X86-64,i386]
+        acpi=           [HW,ACPI,X86]
                         Advanced Configuration and Power Interface
                         Format: { force | off | ht | strict | noirq | rsdt }
                         force -- enable ACPI if default was off
@@ -218,7 +224,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         acpi_osi="!string2"     # remove built-in string2
                         acpi_osi=               # disable all strings
 
-        acpi_pm_good    [X86-32,X86-64]
+        acpi_pm_good    [X86]
                         Override the pmtimer bug detection: force the kernel
                         to assume that this machine's pmtimer latches its value
                         and always returns good values.
@@ -231,6 +237,35 @@ and is between 256 and 4096 characters. It is defined in the file
                         power state again in power transition.
                         1 : disable the power state check
 
+        acpi_sci=       [HW,ACPI] ACPI System Control Interrupt trigger mode
+                        Format: { level | edge | high | low }
+
+        acpi_serialize  [HW,ACPI] force serialization of AML methods
+
+        acpi_skip_timer_override [HW,ACPI]
+                        Recognize and ignore IRQ0/pin2 Interrupt Override.
+                        For broken nForce2 BIOS resulting in XT-PIC timer.
+
+        acpi_sleep=     [HW,ACPI] Sleep options
+                        Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
+                                  old_ordering, s4_nonvs }
+                        See Documentation/power/video.txt for information on
+                        s3_bios and s3_mode.
+                        s3_beep is for debugging; it makes the PC's speaker beep
+                        as soon as the kernel's real-mode entry point is called.
+                        s4_nohwsig prevents ACPI hardware signature from being
+                        used during resume from hibernation.
+                        old_ordering causes the ACPI 1.0 ordering of the _PTS
+                        control method, with respect to putting devices into
+                        low power states, to be enforced (the ACPI 2.0 ordering
+                        of _PTS is used by default).
+                        s4_nonvs prevents the kernel from saving/restoring the
+                        ACPI NVS memory during hibernation.
+
+        acpi_use_timer_override [HW,ACPI]
+                        Use timer override. For some broken Nvidia NF5 boards
+                        that require a timer override, but don't have HPET
+
         acpi_enforce_resources= [ACPI]
                         { strict | lax | no }
                         Check for resource conflicts between native drivers
@@ -250,6 +285,9 @@ and is between 256 and 4096 characters. It is defined in the file
         ad1848=         [HW,OSS]
                         Format: <io>,<irq>,<dma>,<dma2>,<type>
 
+        add_efi_memmap  [EFI; X86] Include EFI memory map in
+                        kernel's map of available physical RAM.
+
         advansys=       [HW,SCSI]
                         See header of drivers/scsi/advansys.c.
 
@@ -313,7 +351,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         not play well with APC CPU idle - disable it if you have
                         APC and your system crashes randomly.
 
-        apic=           [APIC,i386] Advanced Programmable Interrupt Controller
+        apic=           [APIC,X86-32] Advanced Programmable Interrupt Controller
                         Change the output verbosity whilst booting
                         Format: { quiet (default) | verbose | debug }
                         Change the amount of debugging information output
@@ -459,7 +497,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         Also note the kernel might malfunction if you disable
                         some critical bits.
 
-        code_bytes      [IA32/X86_64] How many bytes of object code to print
+        code_bytes      [X86] How many bytes of object code to print
                         in an oops report.
                         Range: 0 - 8192
                         Default: 64
@@ -592,7 +630,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         MTRR settings.  This parameter disables that behavior,
                         possibly causing your machine to run very slowly.
 
-        disable_timer_pin_1 [i386,x86-64]
+        disable_timer_pin_1 [X86]
                         Disable PIN 1 of APIC timer
                         Can be useful to work around chipset bugs.
 
@@ -624,7 +662,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         UART at the specified I/O port or MMIO address.
                         The options are the same as for ttyS, above.
 
-        earlyprintk=    [X86-32,X86-64,SH,BLACKFIN]
+        earlyprintk=    [X86,SH,BLACKFIN]
                         earlyprintk=vga
                         earlyprintk=serial[,ttySn[,baudrate]]
                         earlyprintk=dbgp
@@ -659,7 +697,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         See Documentation/block/as-iosched.txt and
                         Documentation/block/deadline-iosched.txt for details.
 
-        elfcorehdr=     [IA64,PPC,SH,X86-32,X86_64]
+        elfcorehdr=     [IA64,PPC,SH,X86]
                         Specifies physical address of start of kernel core
                         image elf header. Generally kexec loader will
                         pass this option to capture kernel.
@@ -670,7 +708,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         to discrete, to make X server driver able to add WB
                         entry later. This parameter enables that.
 
-        enable_timer_pin_1 [i386,x86-64]
+        enable_timer_pin_1 [X86]
                         Enable PIN 1 of APIC timer
                         Can be useful to work around chipset bugs
                         (in particular on some ATI chipsets).
@@ -743,7 +781,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         hashdist=       [KNL,NUMA] Large hashes allocated during boot
                         are distributed across NUMA nodes.  Defaults on
-                        for IA-64, off otherwise.
+                        for 64bit NUMA, off otherwise.
                         Format: 0 | 1 (for off | on)
 
         hcl=            [IA-64] SGI's Hardware Graph compatibility layer
@@ -938,7 +976,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         See comment before marvel_specify_io7 in
                         arch/alpha/kernel/core_marvel.c.
 
-        io_delay=       [X86-32,X86-64] I/O delay method
+        io_delay=       [X86] I/O delay method
                 0x80
                         Standard port 0x80 based delay
                 0xed
@@ -1000,7 +1038,7 @@ and is between 256 and 4096 characters. It is defined in the file
 
         keepinitrd      [HW,ARM]
 
-        kernelcore=nn[KMG]      [KNL,X86-32,IA-64,PPC,X86-64] This parameter
+        kernelcore=nn[KMG]      [KNL,X86,IA-64,PPC] This parameter
                         specifies the amount of memory usable by the kernel
                         for non-movable allocations.  The requested amount is
                         spread evenly throughout all nodes in the system. The
@@ -1034,7 +1072,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         Configure the RouterBoard 532 series on-chip
                         Ethernet adapter MAC address.
 
-        kstack=N        [X86-32,X86-64] Print N words from the kernel stack
+        kstack=N        [X86] Print N words from the kernel stack
                         in oops dumps.
 
         l2cr=           [PPC]
@@ -1044,7 +1082,7 @@ and is between 256 and 4096 characters. It is defined in the file
         lapic           [X86-32,APIC] Enable the local APIC even if BIOS
                         disabled it.
 
-        lapic_timer_c2_ok       [X86-32,x86-64,APIC] trust the local apic timer
+        lapic_timer_c2_ok       [X86,APIC] trust the local apic timer
                         in C2 power state.
 
         libata.dma=     [LIBATA] DMA control
@@ -1229,7 +1267,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         [KNL,SH] Allow user to override the default size for
                         per-device physically contiguous DMA buffers.
 
-        memmap=exactmap [KNL,X86-32,X86_64] Enable setting of an exact
+        memmap=exactmap [KNL,X86] Enable setting of an exact
                         E820 memory map, as specified by the user.
                         Such memmap=exactmap lines can be constructed based on
                         BIOS output or other requirements. See the memmap=nn@ss
@@ -1320,7 +1358,7 @@ and is between 256 and 4096 characters. It is defined in the file
         mousedev.yres=  [MOUSE] Vertical screen resolution, used for devices
                         reporting absolute coordinates, such as tablets
 
-        movablecore=nn[KMG]     [KNL,X86-32,IA-64,PPC,X86-64] This parameter
+        movablecore=nn[KMG]     [KNL,X86,IA-64,PPC] This parameter
                         is similar to kernelcore except it specifies the
                         amount of memory used for migratable allocations.
                         If both kernelcore and movablecore is specified,
@@ -1422,7 +1460,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         when a NMI is triggered.
                         Format: [state][,regs][,debounce][,die]
 
-        nmi_watchdog=   [KNL,BUGS=X86-32,X86-64] Debugging features for SMP kernels
+        nmi_watchdog=   [KNL,BUGS=X86] Debugging features for SMP kernels
                         Format: [panic,][num]
                         Valid num: 0,1,2
                         0 - turn nmi_watchdog off
@@ -1475,11 +1513,11 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nodsp           [SH] Disable hardware DSP at boot time.
 
-        noefi           [X86-32,X86-64] Disable EFI runtime services support.
+        noefi           [X86] Disable EFI runtime services support.
 
         noexec          [IA-64]
 
-        noexec          [X86-32,X86-64]
+        noexec          [X86]
                         On X86-32 available only on PAE configured kernels.
                         noexec=on: enable non-executable mappings (default)
                         noexec=off: disable non-executable mappings
@@ -1497,6 +1535,10 @@ and is between 256 and 4096 characters. It is defined in the file
                         register save and restore. The kernel will only save
                         legacy floating-point registers on task switch.
 
+        noxsave         [BUGS=X86] Disables x86 extended register state save
+                        and restore using xsave. The kernel will fallback to
+                        enabling legacy floating-point and sse state.
+
         nohlt           [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or
                         wfi(ARM) instruction doesn't work correctly and not to
                         use it. This is also useful when using JTAG debugger.
@@ -1525,7 +1567,7 @@ and is between 256 and 4096 characters. It is defined in the file
         noirqdebug      [X86-32] Disables the code which attempts to detect and
                         disable unhandled interrupt sources.
 
-        no_timer_check  [X86-32,X86_64,APIC] Disables the code which tests for
+        no_timer_check  [X86,APIC] Disables the code which tests for
                         broken timer IRQ sources.
 
         noisapnp        [ISAPNP] Disables ISA PnP code.
@@ -1588,6 +1630,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
         nowb            [ARM]
 
+        nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
+
         nptcg=          [IA64] Override max number of concurrent global TLB
                         purges which is reported from either PAL_VM_SUMMARY or
                         SAL PALO.
@@ -1689,7 +1733,7 @@ and is between 256 and 4096 characters. It is defined in the file
                                 disable the use of PCIE advanced error reporting.
                 nodomains       [PCI] Disable support for multiple PCI
                                 root domains (aka PCI segments, in ACPI-speak).
-                nommconf        [X86-32,X86_64] Disable use of MMCONFIG for PCI
+                nommconf        [X86] Disable use of MMCONFIG for PCI
                                 Configuration
                 nomsi           [MSI] If the PCI_MSI kernel config parameter is
                                 enabled, this kernel boot option can be used to
@@ -1838,6 +1882,12 @@ and is between 256 and 4096 characters. It is defined in the file
                         autoconfiguration.
                         Ranges are in pairs (memory base and size).
 
+        ports=          [IP_VS_FTP] IPVS ftp helper module
+                        Default is 21.
+                        Up to 8 (IP_VS_APP_MAX_PORTS) ports
+                        may be specified.
+                        Format: <port>,<port>....
+
         print-fatal-signals=
                         [KNL] debug: print fatal signals
                         print-fatal-signals=1: print segfault info to
@@ -2380,7 +2430,7 @@ and is between 256 and 4096 characters. It is defined in the file
                         reported either.
 
         unknown_nmi_panic
-                        [X86-32,X86-64]
+                        [X86]
                         Set unknown_nmi_panic=1 early on boot.
 
         usbcore.autosuspend=
@@ -2447,12 +2497,12 @@ and is between 256 and 4096 characters. It is defined in the file
                                         medium is write-protected).
                         Example: quirks=0419:aaf5:rl,0421:0433:rc
 
-        vdso=           [X86-32,SH,x86-64]
+        vdso=           [X86,SH]
                         vdso=2: enable compat VDSO (default with COMPAT_VDSO)
                         vdso=1: enable VDSO (default)
                         vdso=0: disable VDSO mapping
 
-        vdso32=         [X86-32,X86-64]
+        vdso32=         [X86]
                         vdso32=2: enable compat VDSO (default with COMPAT_VDSO)
                         vdso32=1: enable 32-bit VDSO (default)
                         vdso32=0: disable 32-bit VDSO mapping