docs: alphabetize entries in kernel-parameters.txt
Move entries to be in alpha order as specified near the beginning of this file. Clean up some whitespace and line-length miscues. Add '=' to "selinux" option syntax. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Randy Dunlap
Linus Torvalds
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Коммит
0cb55ad2ad
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@ -153,60 +153,6 @@ and is between 256 and 4096 characters. It is defined in the file
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1,0: use 1st APIC table
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default: 0
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acpi_sleep= [HW,ACPI] Sleep options
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Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
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old_ordering, s4_nonvs }
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See Documentation/power/video.txt for information on
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s3_bios and s3_mode.
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s3_beep is for debugging; it makes the PC's speaker beep
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as soon as the kernel's real-mode entry point is called.
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s4_nohwsig prevents ACPI hardware signature from being
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used during resume from hibernation.
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old_ordering causes the ACPI 1.0 ordering of the _PTS
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control method, with respect to putting devices into
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low power states, to be enforced (the ACPI 2.0 ordering
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of _PTS is used by default).
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s4_nonvs prevents the kernel from saving/restoring the
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ACPI NVS memory during hibernation.
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acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
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Format: { level | edge | high | low }
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acpi_irq_balance [HW,ACPI]
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ACPI will balance active IRQs
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default in APIC mode
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acpi_irq_nobalance [HW,ACPI]
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ACPI will not move active IRQs (default)
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default in PIC mode
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acpi_irq_pci= [HW,ACPI] If irq_balance, clear listed IRQs for
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use by PCI
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Format: <irq>,<irq>...
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acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
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Format: <irq>,<irq>...
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acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT
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acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
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Format: To spoof as Windows 98: ="Microsoft Windows"
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acpi_osi= [HW,ACPI] Modify list of supported OS interface strings
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acpi_osi="string1" # add string1 -- only one string
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acpi_osi="!string2" # remove built-in string2
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acpi_osi= # disable all strings
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acpi_serialize [HW,ACPI] force serialization of AML methods
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acpi_skip_timer_override [HW,ACPI]
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Recognize and ignore IRQ0/pin2 Interrupt Override.
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For broken nForce2 BIOS resulting in XT-PIC timer.
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acpi_use_timer_override [HW,ACPI]
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Use timer override. For some broken Nvidia NF5 boards
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that require a timer override, but don't have
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HPET
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acpi_backlight= [HW,ACPI]
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acpi_backlight=vendor
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acpi_backlight=video
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@ -214,11 +160,6 @@ and is between 256 and 4096 characters. It is defined in the file
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(e.g. thinkpad_acpi, sony_acpi, etc.) instead
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of the ACPI video.ko driver.
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acpi_display_output= [HW,ACPI]
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acpi_display_output=vendor
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acpi_display_output=video
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See above.
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acpi.debug_layer= [HW,ACPI,ACPI_DEBUG]
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acpi.debug_level= [HW,ACPI,ACPI_DEBUG]
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Format: <int>
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@ -247,6 +188,41 @@ and is between 256 and 4096 characters. It is defined in the file
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unusable. The "log_buf_len" parameter may be useful
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if you need to capture more output.
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acpi_display_output= [HW,ACPI]
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acpi_display_output=vendor
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acpi_display_output=video
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See above.
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acpi_irq_balance [HW,ACPI]
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ACPI will balance active IRQs
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default in APIC mode
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acpi_irq_nobalance [HW,ACPI]
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ACPI will not move active IRQs (default)
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default in PIC mode
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acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
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Format: <irq>,<irq>...
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acpi_irq_pci= [HW,ACPI] If irq_balance, clear listed IRQs for
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use by PCI
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Format: <irq>,<irq>...
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acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT
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acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
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Format: To spoof as Windows 98: ="Microsoft Windows"
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acpi_osi= [HW,ACPI] Modify list of supported OS interface strings
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acpi_osi="string1" # add string1 -- only one string
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acpi_osi="!string2" # remove built-in string2
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acpi_osi= # disable all strings
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acpi_pm_good [X86-32,X86-64]
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Override the pmtimer bug detection: force the kernel
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to assume that this machine's pmtimer latches its value
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and always returns good values.
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acpi.power_nocheck= [HW,ACPI]
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Format: 1/0 enable/disable the check of power state.
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On some bogus BIOS the _PSC object/_STA object of
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@ -255,11 +231,6 @@ and is between 256 and 4096 characters. It is defined in the file
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power state again in power transition.
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1 : disable the power state check
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acpi_pm_good [X86-32,X86-64]
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Override the pmtimer bug detection: force the kernel
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to assume that this machine's pmtimer latches its value
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and always returns good values.
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acpi_enforce_resources= [ACPI]
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{ strict | lax | no }
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Check for resource conflicts between native drivers
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@ -276,22 +247,6 @@ and is between 256 and 4096 characters. It is defined in the file
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no: ACPI OperationRegions are not marked as reserved,
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no further checks are performed.
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agp= [AGP]
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{ off | try_unsupported }
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off: disable AGP support
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try_unsupported: try to drive unsupported chipsets
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(may crash computer or cause data corruption)
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enable_timer_pin_1 [i386,x86-64]
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Enable PIN 1 of APIC timer
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Can be useful to work around chipset bugs
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(in particular on some ATI chipsets).
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The kernel tries to set a reasonable default.
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disable_timer_pin_1 [i386,x86-64]
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Disable PIN 1 of APIC timer
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Can be useful to work around chipset bugs.
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ad1848= [HW,OSS]
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Format: <io>,<irq>,<dma>,<dma2>,<type>
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@ -305,6 +260,12 @@ and is between 256 and 4096 characters. It is defined in the file
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Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>
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See also header of sound/oss/aedsp16.c.
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agp= [AGP]
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{ off | try_unsupported }
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off: disable AGP support
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try_unsupported: try to drive unsupported chipsets
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(may crash computer or cause data corruption)
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aha152x= [HW,SCSI]
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See Documentation/scsi/aha152x.txt.
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@ -432,12 +393,6 @@ and is between 256 and 4096 characters. It is defined in the file
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possible to determine what the correct size should be.
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This option provides an override for these situations.
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security= [SECURITY] Choose a security module to enable at boot.
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If this boot parameter is not specified, only the first
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security module asking for security registration will be
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loaded. An invalid security module name will be treated
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as if no module has been chosen.
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capability.disable=
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[SECURITY] Disable capabilities. This would normally
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be used only if an alternative security model is to be
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@ -509,24 +464,6 @@ and is between 256 and 4096 characters. It is defined in the file
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Range: 0 - 8192
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Default: 64
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dma_debug=off If the kernel is compiled with DMA_API_DEBUG support
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this option disables the debugging code at boot.
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dma_debug_entries=<number>
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This option allows to tune the number of preallocated
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entries for DMA-API debugging code. One entry is
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required per DMA-API allocation. Use this if the
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DMA-API debugging code disables itself because the
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architectural default is too low.
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hpet= [X86-32,HPET] option to control HPET usage
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Format: { enable (default) | disable | force |
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verbose }
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disable: disable HPET and use PIT instead
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force: allow force enabled of undocumented chips (ICH4,
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VIA, nVidia)
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verbose: show contents of HPET registers during setup
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com20020= [HW,NET] ARCnet - COM20020 chipset
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Format:
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<io>[,<irq>[,<nodeID>[,<backplane>[,<ckp>[,<timeout>]]]]]
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@ -570,23 +507,6 @@ and is between 256 and 4096 characters. It is defined in the file
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console=brl,ttyS0
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For now, only VisioBraille is supported.
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earlycon= [KNL] Output early console device and options.
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uart[8250],io,<addr>[,options]
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uart[8250],mmio,<addr>[,options]
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Start an early, polled-mode console on the 8250/16550
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UART at the specified I/O port or MMIO address.
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The options are the same as for ttyS, above.
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no_console_suspend
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[HW] Never suspend the console
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Disable suspending of consoles during suspend and
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hibernate operations. Once disabled, debugging
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messages can reach various consoles while the rest
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of the system is being put to sleep (ie, while
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debugging driver suspend/resume hooks). This may
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not work reliably with all consoles, but is known
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to work with serial and VGA consoles.
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coredump_filter=
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[KNL] Change the default value for
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/proc/<pid>/coredump_filter.
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@ -643,30 +563,13 @@ and is between 256 and 4096 characters. It is defined in the file
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Format: <area>[,<node>]
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See also Documentation/networking/decnet.txt.
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vt.default_blu= [VT]
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Format: <blue0>,<blue1>,<blue2>,...,<blue15>
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Change the default blue palette of the console.
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This is a 16-member array composed of values
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ranging from 0-255.
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vt.default_grn= [VT]
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Format: <green0>,<green1>,<green2>,...,<green15>
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Change the default green palette of the console.
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This is a 16-member array composed of values
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ranging from 0-255.
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vt.default_red= [VT]
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Format: <red0>,<red1>,<red2>,...,<red15>
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Change the default red palette of the console.
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This is a 16-member array composed of values
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ranging from 0-255.
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vt.default_utf8=
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[VT]
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Format=<0|1>
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Set system-wide default UTF-8 mode for all tty's.
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Default is 1, i.e. UTF-8 mode is enabled for all
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newly opened terminals.
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default_hugepagesz=
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[same as hugepagesz=] The size of the default
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HugeTLB page size. This is the size represented by
|
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the legacy /proc/ hugepages APIs, used for SHM, and
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default size when mounting hugetlbfs filesystems.
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Defaults to the default architecture's huge page size
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if not specified.
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dhash_entries= [KNL]
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Set number of hash buckets for dentry cache.
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@ -679,27 +582,9 @@ and is between 256 and 4096 characters. It is defined in the file
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Documentation/serial/digiepca.txt.
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disable_mtrr_cleanup [X86]
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enable_mtrr_cleanup [X86]
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The kernel tries to adjust MTRR layout from continuous
|
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to discrete, to make X server driver able to add WB
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entry later. This parameter enables/disables that.
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mtrr_chunk_size=nn[KMG] [X86]
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used for mtrr cleanup. It is largest continous chunk
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that could hold holes aka. UC entries.
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mtrr_gran_size=nn[KMG] [X86]
|
||||
Used for mtrr cleanup. It is granularity of mtrr block.
|
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Default is 1.
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Large value could prevent small alignment from
|
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using up MTRRs.
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mtrr_spare_reg_nr=n [X86]
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Format: <integer>
|
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Range: 0,7 : spare reg number
|
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Default : 1
|
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Used for mtrr cleanup. It is spare mtrr entries number.
|
||||
Set to 2 or more if your graphical card needs more.
|
||||
entry later. This parameter disables that.
|
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disable_mtrr_trim [X86, Intel and AMD only]
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By default the kernel will trim any uncacheable
|
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|
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@ -707,12 +592,38 @@ and is between 256 and 4096 characters. It is defined in the file
|
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MTRR settings. This parameter disables that behavior,
|
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possibly causing your machine to run very slowly.
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|
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disable_timer_pin_1 [i386,x86-64]
|
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Disable PIN 1 of APIC timer
|
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Can be useful to work around chipset bugs.
|
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|
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dmasound= [HW,OSS] Sound subsystem buffers
|
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|
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dma_debug=off If the kernel is compiled with DMA_API_DEBUG support,
|
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this option disables the debugging code at boot.
|
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|
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dma_debug_entries=<number>
|
||||
This option allows to tune the number of preallocated
|
||||
entries for DMA-API debugging code. One entry is
|
||||
required per DMA-API allocation. Use this if the
|
||||
DMA-API debugging code disables itself because the
|
||||
architectural default is too low.
|
||||
|
||||
dscc4.setup= [NET]
|
||||
|
||||
dtc3181e= [HW,SCSI]
|
||||
|
||||
dynamic_printk Enables pr_debug()/dev_dbg() calls if
|
||||
CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
|
||||
These can also be switched on/off via
|
||||
<debugfs>/dynamic_printk/modules
|
||||
|
||||
earlycon= [KNL] Output early console device and options.
|
||||
uart[8250],io,<addr>[,options]
|
||||
uart[8250],mmio,<addr>[,options]
|
||||
Start an early, polled-mode console on the 8250/16550
|
||||
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=vga
|
||||
earlyprintk=serial[,ttySn[,baudrate]]
|
||||
|
|
@ -754,6 +665,17 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
pass this option to capture kernel.
|
||||
See Documentation/kdump/kdump.txt for details.
|
||||
|
||||
enable_mtrr_cleanup [X86]
|
||||
The kernel tries to adjust MTRR layout from continuous
|
||||
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 PIN 1 of APIC timer
|
||||
Can be useful to work around chipset bugs
|
||||
(in particular on some ATI chipsets).
|
||||
The kernel tries to set a reasonable default.
|
||||
|
||||
enforcing [SELINUX] Set initial enforcing status.
|
||||
Format: {"0" | "1"}
|
||||
See security/selinux/Kconfig help text.
|
||||
|
|
@ -841,6 +763,16 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
hisax= [HW,ISDN]
|
||||
See Documentation/isdn/README.HiSax.
|
||||
|
||||
hlt [BUGS=ARM,SH]
|
||||
|
||||
hpet= [X86-32,HPET] option to control HPET usage
|
||||
Format: { enable (default) | disable | force |
|
||||
verbose }
|
||||
disable: disable HPET and use PIT instead
|
||||
force: allow force enabled of undocumented chips (ICH4,
|
||||
VIA, nVidia)
|
||||
verbose: show contents of HPET registers during setup
|
||||
|
||||
hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
|
||||
hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
|
||||
On x86-64 and powerpc, this option can be specified
|
||||
|
|
@ -850,15 +782,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
(when the CPU supports the "pdpe1gb" cpuinfo flag)
|
||||
Note that 1GB pages can only be allocated at boot time
|
||||
using hugepages= and not freed afterwards.
|
||||
default_hugepagesz=
|
||||
[same as hugepagesz=] The size of the default
|
||||
HugeTLB page size. This is the size represented by
|
||||
the legacy /proc/ hugepages APIs, used for SHM, and
|
||||
default size when mounting hugetlbfs filesystems.
|
||||
Defaults to the default architecture's huge page size
|
||||
if not specified.
|
||||
|
||||
hlt [BUGS=ARM,SH]
|
||||
|
||||
hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
|
||||
terminal devices. Valid values: 0..8
|
||||
|
|
@ -919,6 +842,9 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed
|
||||
See Documentation/ide/ide.txt.
|
||||
|
||||
ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
|
||||
Claim all unknown PCI IDE storage controllers.
|
||||
|
||||
idle= [X86]
|
||||
Format: idle=poll, idle=mwait, idle=halt, idle=nomwait
|
||||
Poll forces a polling idle loop that can slightly
|
||||
|
|
@ -934,9 +860,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
In such case C2/C3 won't be used again.
|
||||
idle=nomwait: Disable mwait for CPU C-states
|
||||
|
||||
ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
|
||||
Claim all unknown PCI IDE storage controllers.
|
||||
|
||||
ignore_loglevel [KNL]
|
||||
Ignore loglevel setting - this will print /all/
|
||||
kernel messages to the console. Useful for debugging.
|
||||
|
|
@ -970,25 +893,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
inport.irq= [HW] Inport (ATI XL and Microsoft) busmouse driver
|
||||
Format: <irq>
|
||||
|
||||
inttest= [IA64]
|
||||
|
||||
iomem= Disable strict checking of access to MMIO memory
|
||||
strict regions from userspace.
|
||||
relaxed
|
||||
|
||||
iommu= [x86]
|
||||
off
|
||||
force
|
||||
noforce
|
||||
biomerge
|
||||
panic
|
||||
nopanic
|
||||
merge
|
||||
nomerge
|
||||
forcesac
|
||||
soft
|
||||
|
||||
|
||||
intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option
|
||||
on
|
||||
Enable intel iommu driver.
|
||||
|
|
@ -1012,6 +916,28 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
result in a hardware IOTLB flush operation as opposed
|
||||
to batching them for performance.
|
||||
|
||||
inttest= [IA64]
|
||||
|
||||
iomem= Disable strict checking of access to MMIO memory
|
||||
strict regions from userspace.
|
||||
relaxed
|
||||
|
||||
iommu= [x86]
|
||||
off
|
||||
force
|
||||
noforce
|
||||
biomerge
|
||||
panic
|
||||
nopanic
|
||||
merge
|
||||
nomerge
|
||||
forcesac
|
||||
soft
|
||||
|
||||
io7= [HW] IO7 for Marvel based alpha systems
|
||||
See comment before marvel_specify_io7 in
|
||||
arch/alpha/kernel/core_marvel.c.
|
||||
|
||||
io_delay= [X86-32,X86-64] I/O delay method
|
||||
0x80
|
||||
Standard port 0x80 based delay
|
||||
|
|
@ -1022,10 +948,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
none
|
||||
No delay
|
||||
|
||||
io7= [HW] IO7 for Marvel based alpha systems
|
||||
See comment before marvel_specify_io7 in
|
||||
arch/alpha/kernel/core_marvel.c.
|
||||
|
||||
ip= [IP_PNP]
|
||||
See Documentation/filesystems/nfsroot.txt.
|
||||
|
||||
|
|
@ -1036,12 +958,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
|
||||
See header of drivers/scsi/ips.c.
|
||||
|
||||
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>....
|
||||
|
||||
irqfixup [HW]
|
||||
When an interrupt is not handled search all handlers
|
||||
for it. Intended to get systems with badly broken
|
||||
|
|
@ -1082,6 +998,8 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
js= [HW,JOY] Analog joystick
|
||||
See Documentation/input/joystick.txt.
|
||||
|
||||
keepinitrd [HW,ARM]
|
||||
|
||||
kernelcore=nn[KMG] [KNL,X86-32,IA-64,PPC,X86-64] This parameter
|
||||
specifies the amount of memory usable by the kernel
|
||||
for non-movable allocations. The requested amount is
|
||||
|
|
@ -1107,21 +1025,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
higher than default (KMEMTRACE_N_SUBBUFS in code) if
|
||||
you experience buffer overruns.
|
||||
|
||||
movablecore=nn[KMG] [KNL,X86-32,IA-64,PPC,X86-64] This parameter
|
||||
is similar to kernelcore except it specifies the
|
||||
amount of memory used for migratable allocations.
|
||||
If both kernelcore and movablecore is specified,
|
||||
then kernelcore will be at *least* the specified
|
||||
value but may be more. If movablecore on its own
|
||||
is specified, the administrator must be careful
|
||||
that the amount of memory usable for all allocations
|
||||
is not too small.
|
||||
|
||||
keepinitrd [HW,ARM]
|
||||
|
||||
kstack=N [X86-32,X86-64] Print N words from the kernel stack
|
||||
in oops dumps.
|
||||
|
||||
kgdboc= [HW] kgdb over consoles.
|
||||
Requires a tty driver that supports console polling.
|
||||
(only serial suported for now)
|
||||
|
|
@ -1131,6 +1034,9 @@ 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
|
||||
in oops dumps.
|
||||
|
||||
l2cr= [PPC]
|
||||
|
||||
l3cr= [PPC]
|
||||
|
|
@ -1276,9 +1182,8 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
(machvec) in a generic kernel.
|
||||
Example: machvec=hpzx1_swiotlb
|
||||
|
||||
max_loop= [LOOP] Maximum number of loopback devices that can
|
||||
be mounted
|
||||
Format: <1-256>
|
||||
max_addr=nn[KMG] [KNL,BOOT,ia64] All physical memory greater
|
||||
than or equal to this physical address is ignored.
|
||||
|
||||
maxcpus= [SMP] Maximum number of processors that an SMP kernel
|
||||
should make use of. maxcpus=n : n >= 0 limits the
|
||||
|
|
@ -1286,8 +1191,9 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
it is equivalent to "nosmp", which also disables
|
||||
the IO APIC.
|
||||
|
||||
max_addr=nn[KMG] [KNL,BOOT,ia64] All physical memory greater than
|
||||
or equal to this physical address is ignored.
|
||||
max_loop= [LOOP] Maximum number of loopback devices that can
|
||||
be mounted
|
||||
Format: <1-256>
|
||||
|
||||
max_luns= [SCSI] Maximum number of LUNs to probe.
|
||||
Should be between 1 and 2^32-1.
|
||||
|
|
@ -1414,6 +1320,16 @@ 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
|
||||
is similar to kernelcore except it specifies the
|
||||
amount of memory used for migratable allocations.
|
||||
If both kernelcore and movablecore is specified,
|
||||
then kernelcore will be at *least* the specified
|
||||
value but may be more. If movablecore on its own
|
||||
is specified, the administrator must be careful
|
||||
that the amount of memory usable for all allocations
|
||||
is not too small.
|
||||
|
||||
mpu401= [HW,OSS]
|
||||
Format: <io>,<irq>
|
||||
|
||||
|
|
@ -1435,6 +1351,23 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
[HW] Make the MicroTouch USB driver use raw coordinates
|
||||
('y', default) or cooked coordinates ('n')
|
||||
|
||||
mtrr_chunk_size=nn[KMG] [X86]
|
||||
used for mtrr cleanup. It is largest continous chunk
|
||||
that could hold holes aka. UC entries.
|
||||
|
||||
mtrr_gran_size=nn[KMG] [X86]
|
||||
Used for mtrr cleanup. It is granularity of mtrr block.
|
||||
Default is 1.
|
||||
Large value could prevent small alignment from
|
||||
using up MTRRs.
|
||||
|
||||
mtrr_spare_reg_nr=n [X86]
|
||||
Format: <integer>
|
||||
Range: 0,7 : spare reg number
|
||||
Default : 1
|
||||
Used for mtrr cleanup. It is spare mtrr entries number.
|
||||
Set to 2 or more if your graphical card needs more.
|
||||
|
||||
n2= [NET] SDL Inc. RISCom/N2 synchronous serial card
|
||||
|
||||
NCR_D700= [HW,SCSI]
|
||||
|
|
@ -1495,11 +1428,13 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
0 - turn nmi_watchdog off
|
||||
1 - use the IO-APIC timer for the NMI watchdog
|
||||
2 - use the local APIC for the NMI watchdog using
|
||||
a performance counter. Note: This will use one performance
|
||||
counter and the local APIC's performance vector.
|
||||
When panic is specified panic when an NMI watchdog timeout occurs.
|
||||
This is useful when you use a panic=... timeout and need the box
|
||||
quickly up again.
|
||||
a performance counter. Note: This will use one
|
||||
performance counter and the local APIC's performance
|
||||
vector.
|
||||
When panic is specified, panic when an NMI watchdog
|
||||
timeout occurs.
|
||||
This is useful when you use a panic=... timeout and
|
||||
need the box quickly up again.
|
||||
Instead of 1 and 2 it is possible to use the following
|
||||
symbolic names: lapic and ioapic
|
||||
Example: nmi_watchdog=2 or nmi_watchdog=panic,lapic
|
||||
|
|
@ -1508,6 +1443,16 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
emulation library even if a 387 maths coprocessor
|
||||
is present.
|
||||
|
||||
no_console_suspend
|
||||
[HW] Never suspend the console
|
||||
Disable suspending of consoles during suspend and
|
||||
hibernate operations. Once disabled, debugging
|
||||
messages can reach various consoles while the rest
|
||||
of the system is being put to sleep (ie, while
|
||||
debugging driver suspend/resume hooks). This may
|
||||
not work reliably with all consoles, but is known
|
||||
to work with serial and VGA consoles.
|
||||
|
||||
noaliencache [MM, NUMA, SLAB] Disables the allocation of alien
|
||||
caches in the slab allocator. Saves per-node memory,
|
||||
but will impact performance.
|
||||
|
|
@ -1522,6 +1467,8 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
|
||||
nocache [ARM]
|
||||
|
||||
noclflush [BUGS=X86] Don't use the CLFLUSH instruction
|
||||
|
||||
nodelayacct [KNL] Disable per-task delay accounting
|
||||
|
||||
nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
|
||||
|
|
@ -1550,8 +1497,6 @@ 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.
|
||||
|
||||
noclflush [BUGS=X86] Don't use the CLFLUSH instruction
|
||||
|
||||
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.
|
||||
|
|
@ -1596,12 +1541,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
|
||||
nolapic_timer [X86-32,APIC] Do not use the local APIC timer.
|
||||
|
||||
nox2apic [X86-64,APIC] Do not enable x2APIC mode.
|
||||
|
||||
x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of
|
||||
default x2apic cluster mode on platforms
|
||||
supporting x2apic.
|
||||
|
||||
noltlbs [PPC] Do not use large page/tlb entries for kernel
|
||||
lowmem mapping on PPC40x.
|
||||
|
||||
|
|
@ -1612,6 +1551,9 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
nomfgpt [X86-32] Disable Multi-Function General Purpose
|
||||
Timer usage (for AMD Geode machines).
|
||||
|
||||
norandmaps Don't use address space randomization. Equivalent to
|
||||
echo 0 > /proc/sys/kernel/randomize_va_space
|
||||
|
||||
noreplace-paravirt [X86-32,PV_OPS] Don't patch paravirt_ops
|
||||
|
||||
noreplace-smp [X86-32,SMP] Don't replace SMP instructions
|
||||
|
|
@ -1650,13 +1592,13 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
purges which is reported from either PAL_VM_SUMMARY or
|
||||
SAL PALO.
|
||||
|
||||
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
|
||||
|
||||
numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
|
||||
one of ['zone', 'node', 'default'] can be specified
|
||||
This can be set from sysctl after boot.
|
||||
See Documentation/sysctl/vm.txt for details.
|
||||
|
||||
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
|
||||
|
||||
ohci1394_dma=early [HW] enable debugging via the ohci1394 driver.
|
||||
See Documentation/debugging-via-ohci1394.txt for more
|
||||
info.
|
||||
|
|
@ -1905,6 +1847,14 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
printk.time= Show timing data prefixed to each printk message line
|
||||
Format: <bool> (1/Y/y=enable, 0/N/n=disable)
|
||||
|
||||
processor.max_cstate= [HW,ACPI]
|
||||
Limit processor to maximum C-state
|
||||
max_cstate=9 overrides any DMI blacklist limit.
|
||||
|
||||
processor.nocst [HW,ACPI]
|
||||
Ignore the _CST method to determine C-states,
|
||||
instead using the legacy FADT method
|
||||
|
||||
profile= [KNL] Enable kernel profiling via /proc/profile
|
||||
Format: [schedule,]<number>
|
||||
Param: "schedule" - profile schedule points.
|
||||
|
|
@ -1914,14 +1864,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
Requires CONFIG_SCHEDSTATS
|
||||
Param: "kvm" - profile VM exits.
|
||||
|
||||
processor.max_cstate= [HW,ACPI]
|
||||
Limit processor to maximum C-state
|
||||
max_cstate=9 overrides any DMI blacklist limit.
|
||||
|
||||
processor.nocst [HW,ACPI]
|
||||
Ignore the _CST method to determine C-states,
|
||||
instead using the legacy FADT method
|
||||
|
||||
prompt_ramdisk= [RAM] List of RAM disks to prompt for floppy disk
|
||||
before loading.
|
||||
See Documentation/blockdev/ramdisk.txt.
|
||||
|
|
@ -2075,7 +2017,13 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
allowing boot to proceed. none ignores them, expecting
|
||||
user space to do the scan.
|
||||
|
||||
selinux [SELINUX] Disable or enable SELinux at boot time.
|
||||
security= [SECURITY] Choose a security module to enable at boot.
|
||||
If this boot parameter is not specified, only the first
|
||||
security module asking for security registration will be
|
||||
loaded. An invalid security module name will be treated
|
||||
as if no module has been chosen.
|
||||
|
||||
selinux= [SELINUX] Disable or enable SELinux at boot time.
|
||||
Format: { "0" | "1" }
|
||||
See security/selinux/Kconfig help text.
|
||||
0 -- disable.
|
||||
|
|
@ -2499,9 +2447,6 @@ 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
|
||||
|
||||
add_efi_memmap [EFI; x86-32,X86-64] Include EFI memory map in
|
||||
kernel's map of available physical RAM.
|
||||
|
||||
vdso= [X86-32,SH,x86-64]
|
||||
vdso=2: enable compat VDSO (default with COMPAT_VDSO)
|
||||
vdso=1: enable VDSO (default)
|
||||
|
|
@ -2540,6 +2485,31 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
vmpoff= [KNL,S390] Perform z/VM CP command after power off.
|
||||
Format: <command>
|
||||
|
||||
vt.default_blu= [VT]
|
||||
Format: <blue0>,<blue1>,<blue2>,...,<blue15>
|
||||
Change the default blue palette of the console.
|
||||
This is a 16-member array composed of values
|
||||
ranging from 0-255.
|
||||
|
||||
vt.default_grn= [VT]
|
||||
Format: <green0>,<green1>,<green2>,...,<green15>
|
||||
Change the default green palette of the console.
|
||||
This is a 16-member array composed of values
|
||||
ranging from 0-255.
|
||||
|
||||
vt.default_red= [VT]
|
||||
Format: <red0>,<red1>,<red2>,...,<red15>
|
||||
Change the default red palette of the console.
|
||||
This is a 16-member array composed of values
|
||||
ranging from 0-255.
|
||||
|
||||
vt.default_utf8=
|
||||
[VT]
|
||||
Format=<0|1>
|
||||
Set system-wide default UTF-8 mode for all tty's.
|
||||
Default is 1, i.e. UTF-8 mode is enabled for all
|
||||
newly opened terminals.
|
||||
|
||||
waveartist= [HW,OSS]
|
||||
Format: <io>,<irq>,<dma>,<dma2>
|
||||
|
||||
|
|
@ -2552,6 +2522,10 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
wdt= [WDT] Watchdog
|
||||
See Documentation/watchdog/wdt.txt.
|
||||
|
||||
x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of
|
||||
default x2apic cluster mode on platforms
|
||||
supporting x2apic.
|
||||
|
||||
xd= [HW,XT] Original XT pre-IDE (RLL encoded) disks.
|
||||
xd_geo= See header of drivers/block/xd.c.
|
||||
|
||||
|
|
@ -2559,9 +2533,6 @@ and is between 256 and 4096 characters. It is defined in the file
|
|||
Format:
|
||||
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
|
||||
|
||||
norandmaps Don't use address space randomization. Equivalent to
|
||||
echo 0 > /proc/sys/kernel/randomize_va_space
|
||||
|
||||
______________________________________________________________________
|
||||
|
||||
TODO:
|
||||
|
|
|
|||
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