diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r-- | Documentation/kernel-parameters.txt | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 4d9ca7d92a20..ecc74fa4bfde 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -193,6 +193,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. (e.g. thinkpad_acpi, sony_acpi, etc.) instead of the ACPI video.ko driver. + acpi_force_32bit_fadt_addr + force FADT to use 32 bit addresses rather than the + 64 bit X_* addresses. Some firmware have broken 64 + bit addresses for force ACPI ignore these and use + the older legacy 32 bit addresses. + acpica_no_return_repair [HW, ACPI] Disable AML predefined validation mechanism This mechanism can repair the evaluation result to make @@ -608,6 +614,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. cut the overhead, others just disable the usage. So only cgroup_disable=memory is actually worthy} + cgroup_no_v1= [KNL] Disable one, multiple, all cgroup controllers in v1 + Format: { controller[,controller...] | "all" } + Like cgroup_disable, but only applies to cgroup v1; + the blacklisted controllers remain available in cgroup2. + cgroup.memory= [KNL] Pass options to the cgroup memory controller. Format: <string> nosocket -- Disable socket memory accounting. @@ -976,6 +987,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See Documentation/x86/intel_mpx.txt for more information about the feature. + nopku [X86] Disable Memory Protection Keys CPU feature found + in some Intel CPUs. + eagerfpu= [X86] on enable eager fpu restore off disable eager fpu restore @@ -1058,6 +1072,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. A valid base address must be provided, and the serial port must already be setup and configured. + armada3700_uart,<addr> + Start an early, polled-mode console on the + Armada 3700 serial port at the specified + address. The serial port must already be setup + and configured. Options are not yet supported. + earlyprintk= [X86,SH,BLACKFIN,ARM,M68k] earlyprintk=vga earlyprintk=efi @@ -1759,7 +1779,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. keepinitrd [HW,ARM] - kernelcore=nn[KMG] [KNL,X86,IA-64,PPC] This parameter + kernelcore= [KNL,X86,IA-64,PPC] + Format: nn[KMGTPE] | "mirror" + 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 @@ -1775,6 +1797,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted. use the HighMem zone if it exists, and the Normal zone if it does not. + Instead of specifying the amount of memory (nn[KMGTPE]), + you can specify "mirror" option. In case "mirror" + option is specified, mirrored (reliable) memory is used + for non-movable allocations and remaining memory is used + for Movable pages. nn[KMGTPE] and "mirror" are exclusive, + so you can NOT specify nn[KMGTPE] and "mirror" at the same + time. + kgdbdbgp= [KGDB,HW] kgdb over EHCI usb debug port. Format: <Controller#>[,poll interval] The controller # is the number of the ehci usb debug @@ -2593,7 +2623,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nolapic_timer [X86-32,APIC] Do not use the local APIC timer. noltlbs [PPC] Do not use large page/tlb entries for kernel - lowmem mapping on PPC40x. + lowmem mapping on PPC40x and PPC8xx nomca [IA-64] Disable machine check abort handling @@ -2732,6 +2762,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. we can turn it on. on: enable the feature + page_poison= [KNL] Boot-time parameter changing the state of + poisoning on the buddy allocator. + off: turn off poisoning + on: turn on poisoning + panic= [KNL] Kernel behaviour on panic: delay <timeout> timeout > 0: seconds before rebooting timeout = 0: wait forever @@ -3506,6 +3541,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. on Mark read-only kernel memory as read-only (default). off Leave read-only kernel memory writable for debugging. + rockchip.usb_uart + Enable the uart passthrough on the designated usb port + on Rockchip SoCs. When active, the signals of the + debug-uart get routed to the D+ and D- pins of the usb + port and the regular usb controller gets disabled. + root= [KNL] Root filesystem See name_to_dev_t comment in init/do_mounts.c. |