docs: kernel-parameters.txt: Fix whitespace
Some lines used spaces instead of tabs at line start. This can cause mangled lines in editors due to inconsistency. Replace spaces for tabs where appropriate. Signed-off-by: Thymo van Beers <thymovanbeers@gmail.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Thymo van Beers
Jonathan Corbet
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@ -106,11 +106,11 @@
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use by PCI
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Format: <irq>,<irq>...
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acpi_mask_gpe= [HW,ACPI]
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acpi_mask_gpe= [HW,ACPI]
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Due to the existence of _Lxx/_Exx, some GPEs triggered
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by unsupported hardware/firmware features can result in
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GPE floodings that cannot be automatically disabled by
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the GPE dispatcher.
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GPE floodings that cannot be automatically disabled by
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the GPE dispatcher.
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This facility can be used to prevent such uncontrolled
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GPE floodings.
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Format: <int>
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@ -472,10 +472,10 @@
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for platform specific values (SB1, Loongson3 and
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others).
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ccw_timeout_log [S390]
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ccw_timeout_log [S390]
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See Documentation/s390/CommonIO for details.
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cgroup_disable= [KNL] Disable a particular controller
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cgroup_disable= [KNL] Disable a particular controller
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Format: {name of the controller(s) to disable}
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The effects of cgroup_disable=foo are:
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- foo isn't auto-mounted if you mount all cgroups in
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@ -641,8 +641,8 @@
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hvc<n> Use the hypervisor console device <n>. This is for
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both Xen and PowerPC hypervisors.
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If the device connected to the port is not a TTY but a braille
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device, prepend "brl," before the device type, for instance
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If the device connected to the port is not a TTY but a braille
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device, prepend "brl," before the device type, for instance
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console=brl,ttyS0
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For now, only VisioBraille is supported.
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@ -662,7 +662,7 @@
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consoleblank= [KNL] The console blank (screen saver) timeout in
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seconds. A value of 0 disables the blank timer.
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Defaults to 0.
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Defaults to 0.
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coredump_filter=
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[KNL] Change the default value for
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@ -730,7 +730,7 @@
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or memory reserved is below 4G.
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cryptomgr.notests
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[KNL] Disable crypto self-tests
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[KNL] Disable crypto self-tests
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cs89x0_dma= [HW,NET]
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Format: <dma>
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@ -746,7 +746,7 @@
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Format: <port#>,<type>
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See also Documentation/input/devices/joystick-parport.rst
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ddebug_query= [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
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ddebug_query= [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
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time. See
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Documentation/admin-guide/dynamic-debug-howto.rst for
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details. Deprecated, see dyndbg.
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@ -833,7 +833,7 @@
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causing system reset or hang due to sending
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INIT from AP to BSP.
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disable_ddw [PPC/PSERIES]
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disable_ddw [PPC/PSERIES]
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Disable Dynamic DMA Window support. Use this if
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to workaround buggy firmware.
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@ -1188,7 +1188,7 @@
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parameter will force ia64_sal_cache_flush to call
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ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
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forcepae [X86-32]
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forcepae [X86-32]
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Forcefully enable Physical Address Extension (PAE).
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Many Pentium M systems disable PAE but may have a
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functionally usable PAE implementation.
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@ -1247,7 +1247,7 @@
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gamma= [HW,DRM]
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gart_fix_e820= [X86_64] disable the fix e820 for K8 GART
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gart_fix_e820= [X86_64] disable the fix e820 for K8 GART
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Format: off | on
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default: on
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@ -1341,11 +1341,11 @@
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x86-64 are 2M (when the CPU supports "pse") and 1G
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(when the CPU supports the "pdpe1gb" cpuinfo flag).
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hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
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terminal devices. Valid values: 0..8
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hvc_iucv_allow= [S390] Comma-separated list of z/VM user IDs.
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If specified, z/VM IUCV HVC accepts connections
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from listed z/VM user IDs only.
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hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
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terminal devices. Valid values: 0..8
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hvc_iucv_allow= [S390] Comma-separated list of z/VM user IDs.
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If specified, z/VM IUCV HVC accepts connections
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from listed z/VM user IDs only.
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keep_bootcon [KNL]
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Do not unregister boot console at start. This is only
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@ -1353,11 +1353,11 @@
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between unregistering the boot console and initializing
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the real console.
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i2c_bus= [HW] Override the default board specific I2C bus speed
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or register an additional I2C bus that is not
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registered from board initialization code.
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Format:
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<bus_id>,<clkrate>
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i2c_bus= [HW] Override the default board specific I2C bus speed
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or register an additional I2C bus that is not
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registered from board initialization code.
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Format:
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<bus_id>,<clkrate>
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i8042.debug [HW] Toggle i8042 debug mode
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i8042.unmask_kbd_data
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@ -1386,7 +1386,7 @@
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Default: only on s2r transitions on x86; most other
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architectures force reset to be always executed
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i8042.unlock [HW] Unlock (ignore) the keylock
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i8042.kbdreset [HW] Reset device connected to KBD port
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i8042.kbdreset [HW] Reset device connected to KBD port
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i810= [HW,DRM]
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@ -1548,13 +1548,13 @@
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programs exec'd, files mmap'd for exec, and all files
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opened for read by uid=0.
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ima_template= [IMA]
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ima_template= [IMA]
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Select one of defined IMA measurements template formats.
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Formats: { "ima" | "ima-ng" | "ima-sig" }
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Default: "ima-ng"
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ima_template_fmt=
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[IMA] Define a custom template format.
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[IMA] Define a custom template format.
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Format: { "field1|...|fieldN" }
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ima.ahash_minsize= [IMA] Minimum file size for asynchronous hash usage
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@ -1597,7 +1597,7 @@
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inport.irq= [HW] Inport (ATI XL and Microsoft) busmouse driver
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Format: <irq>
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int_pln_enable [x86] Enable power limit notification interrupt
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int_pln_enable [x86] Enable power limit notification interrupt
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integrity_audit=[IMA]
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Format: { "0" | "1" }
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@ -1650,39 +1650,39 @@
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0 disables intel_idle and fall back on acpi_idle.
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1 to 9 specify maximum depth of C-state.
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intel_pstate= [X86]
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disable
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Do not enable intel_pstate as the default
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scaling driver for the supported processors
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passive
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Use intel_pstate as a scaling driver, but configure it
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to work with generic cpufreq governors (instead of
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enabling its internal governor). This mode cannot be
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used along with the hardware-managed P-states (HWP)
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feature.
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force
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Enable intel_pstate on systems that prohibit it by default
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in favor of acpi-cpufreq. Forcing the intel_pstate driver
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instead of acpi-cpufreq may disable platform features, such
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as thermal controls and power capping, that rely on ACPI
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P-States information being indicated to OSPM and therefore
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should be used with caution. This option does not work with
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processors that aren't supported by the intel_pstate driver
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or on platforms that use pcc-cpufreq instead of acpi-cpufreq.
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no_hwp
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Do not enable hardware P state control (HWP)
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if available.
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hwp_only
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Only load intel_pstate on systems which support
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hardware P state control (HWP) if available.
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support_acpi_ppc
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Enforce ACPI _PPC performance limits. If the Fixed ACPI
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Description Table, specifies preferred power management
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profile as "Enterprise Server" or "Performance Server",
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then this feature is turned on by default.
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per_cpu_perf_limits
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Allow per-logical-CPU P-State performance control limits using
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cpufreq sysfs interface
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intel_pstate= [X86]
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disable
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Do not enable intel_pstate as the default
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scaling driver for the supported processors
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passive
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Use intel_pstate as a scaling driver, but configure it
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to work with generic cpufreq governors (instead of
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enabling its internal governor). This mode cannot be
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used along with the hardware-managed P-states (HWP)
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feature.
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force
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Enable intel_pstate on systems that prohibit it by default
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in favor of acpi-cpufreq. Forcing the intel_pstate driver
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instead of acpi-cpufreq may disable platform features, such
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as thermal controls and power capping, that rely on ACPI
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P-States information being indicated to OSPM and therefore
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should be used with caution. This option does not work with
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processors that aren't supported by the intel_pstate driver
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or on platforms that use pcc-cpufreq instead of acpi-cpufreq.
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no_hwp
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Do not enable hardware P state control (HWP)
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if available.
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hwp_only
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Only load intel_pstate on systems which support
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hardware P state control (HWP) if available.
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support_acpi_ppc
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Enforce ACPI _PPC performance limits. If the Fixed ACPI
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Description Table, specifies preferred power management
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profile as "Enterprise Server" or "Performance Server",
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then this feature is turned on by default.
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per_cpu_perf_limits
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Allow per-logical-CPU P-State performance control limits using
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cpufreq sysfs interface
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intremap= [X86-64, Intel-IOMMU]
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on enable Interrupt Remapping (default)
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@ -2027,7 +2027,7 @@
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* [no]ncqtrim: Turn off queued DSM TRIM.
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* nohrst, nosrst, norst: suppress hard, soft
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and both resets.
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and both resets.
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* rstonce: only attempt one reset during
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hot-unplug link recovery
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@ -2215,7 +2215,7 @@
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[KNL,SH] Allow user to override the default size for
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per-device physically contiguous DMA buffers.
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memhp_default_state=online/offline
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memhp_default_state=online/offline
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[KNL] Set the initial state for the memory hotplug
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onlining policy. If not specified, the default value is
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set according to the
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@ -2762,7 +2762,7 @@
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[X86,PV_OPS] Disable paravirtualized VMware scheduler
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clock and use the default one.
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no-steal-acc [X86,KVM] Disable paravirtualized steal time accounting.
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no-steal-acc [X86,KVM] Disable paravirtualized steal time accounting.
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steal time is computed, but won't influence scheduler
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behaviour
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@ -2823,7 +2823,7 @@
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notsc [BUGS=X86-32] Disable Time Stamp Counter
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nowatchdog [KNL] Disable both lockup detectors, i.e.
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soft-lockup and NMI watchdog (hard-lockup).
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soft-lockup and NMI watchdog (hard-lockup).
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nowb [ARM]
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@ -2843,7 +2843,7 @@
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If the dependencies are under your control, you can
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turn on cpu0_hotplug.
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nps_mtm_hs_ctr= [KNL,ARC]
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nps_mtm_hs_ctr= [KNL,ARC]
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This parameter sets the maximum duration, in
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cycles, each HW thread of the CTOP can run
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without interruptions, before HW switches it.
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@ -2984,7 +2984,7 @@
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pci=option[,option...] [PCI] various PCI subsystem options:
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earlydump [X86] dump PCI config space before the kernel
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changes anything
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changes anything
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off [X86] don't probe for the PCI bus
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bios [X86-32] force use of PCI BIOS, don't access
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the hardware directly. Use this if your machine
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@ -3072,7 +3072,7 @@
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is enabled by default. If you need to use this,
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please report a bug.
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nocrs [X86] Ignore PCI host bridge windows from ACPI.
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If you need to use this, please report a bug.
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If you need to use this, please report a bug.
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routeirq Do IRQ routing for all PCI devices.
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This is normally done in pci_enable_device(),
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so this option is a temporary workaround
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@ -4391,7 +4391,7 @@
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usbcore.initial_descriptor_timeout=
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[USB] Specifies timeout for the initial 64-byte
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USB_REQ_GET_DESCRIPTOR request in milliseconds
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USB_REQ_GET_DESCRIPTOR request in milliseconds
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(default 5000 = 5.0 seconds).
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usbcore.nousb [USB] Disable the USB subsystem
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