X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=Documentation%2Fkernel-parameters.txt;h=15356aca938cd9a7bb2cdef09d8e7a19da36db90;hb=c72bb316916b1a6cf35e1d5238566ef27b0b7f80;hp=2fe6e767b3d6013f3d1023c2e518b0466fa27e2f;hpb=2b0f89317e99735bbf32eaede81f707f98ab1b5e;p=cascardo%2Flinux.git diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 2fe6e767b3d6..15356aca938c 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1129,11 +1129,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. The builtin appraise policy appraises all files owned by uid=0. - ima_audit= [IMA] - Format: { "0" | "1" } - 0 -- integrity auditing messages. (Default) - 1 -- enable informational integrity auditing messages. - ima_hash= [IMA] Format: { "sha1" | "md5" } default: "sha1" @@ -1158,6 +1153,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. inport.irq= [HW] Inport (ATI XL and Microsoft) busmouse driver Format: + int_pln_enable [x86] Enable power limit notification interrupt + + integrity_audit=[IMA] + Format: { "0" | "1" } + 0 -- basic integrity auditing messages. (Default) + 1 -- additional integrity auditing messages. + intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option on Enable intel iommu driver. @@ -1456,6 +1458,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. * dump_id: dump IDENTIFY data. + * atapi_dmadir: Enable ATAPI DMADIR bridge support + If there are multiple matching configurations changing the same attribute, the last one is used. @@ -2677,9 +2681,17 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Run specified binary instead of /init from the ramdisk, used for early userspace startup. See initrd. - reboot= [BUGS=X86-32,BUGS=ARM,BUGS=IA-64] Rebooting mode - Format: [,[,...]] - See arch/*/kernel/reboot.c or arch/*/kernel/process.c + reboot= [KNL] + Format (x86 or x86_64): + [w[arm] | c[old] | h[ard] | s[oft] | g[pio]] \ + [[,]s[mp]#### \ + [[,]b[ios] | a[cpi] | k[bd] | t[riple] | e[fi] | p[ci]] \ + [[,]f[orce] + Where reboot_mode is one of warm (soft) or cold (hard) or gpio, + reboot_type is one of bios, acpi, kbd, triple, efi, or pci, + reboot_force is either force or not specified, + reboot_cpu is s[mp]#### with #### being the processor + to be used for rebooting. relax_domain_level= [KNL, SMP] Set scheduler's default relax_domain_level. @@ -3069,6 +3081,19 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See also Documentation/trace/ftrace.txt "trace options" section. + traceoff_on_warning + [FTRACE] enable this option to disable tracing when a + warning is hit. This turns off "tracing_on". Tracing can + be enabled again by echoing '1' into the "tracing_on" + file located in /sys/kernel/debug/tracing/ + + This option is useful, as it disables the trace before + the WARNING dump is called, which prevents the trace to + be filled with content caused by the warning output. + + This option can also be set at run time via the sysctl + option: kernel/traceoff_on_warning + transparent_hugepage= [KNL] Format: [always|madvise|never] @@ -3229,6 +3254,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. video= [FB] Frame buffer configuration See Documentation/fb/modedb.txt. + video.brightness_switch_enabled= [0,1] + If set to 1, on receiving an ACPI notify event + generated by hotkey, video driver will adjust brightness + level and then send out the event to user space through + the allocated input device; If set to 0, video driver + will only send out the event without touching backlight + brightness level. + default: 1 + virtio_mmio.device= [VMMIO] Memory mapped virtio (platform) device. @@ -3341,6 +3375,21 @@ bytes respectively. Such letter suffixes can also be entirely omitted. that this also can be controlled per-workqueue for workqueues visible under /sys/bus/workqueue/. + workqueue.power_efficient + Per-cpu workqueues are generally preferred because + they show better performance thanks to cache + locality; unfortunately, per-cpu workqueues tend to + be more power hungry than unbound workqueues. + + Enabling this makes the per-cpu workqueues which + were observed to contribute significantly to power + consumption unbound, leading to measurably lower + power usage at the cost of small performance + overhead. + + The default value of this parameter is determined by + the config option CONFIG_WQ_POWER_EFFICIENT_DEFAULT. + x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of default x2apic cluster mode on platforms supporting x2apic.