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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-03 11:34:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-03 11:34:28 -0800
commitf96163865a1346b199cc38e827269296f0f24ab0 (patch)
tree8d1bd64f49f689eb2c66dd6e50144fc7b8bb27a5 /Documentation/admin-guide/kernel-parameters.txt
parenta619fe35ab41fded440d3762d4fbad84ff86a4d4 (diff)
parent464257baf99200d1be1c053f15aa617056361e81 (diff)
Merge tag 'docs-6.19' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet: "This has been another busy cycle for documentation, with a lot of build-system thrashing. That work should slow down from here on out. - The various scripts and tools for documentation were spread out in several directories; now they are (almost) all coalesced under tools/docs/. The holdout is the kernel-doc script, which cannot be easily moved without some further thought. - As the amount of Python code increases, we are accumulating modules that are imported by multiple programs. These modules have been pulled together under tools/lib/python/ -- at least, for documentation-related programs. There is other Python code in the tree that might eventually want to move toward this organization. - The Perl kernel-doc.pl script has been removed. It is no longer used by default, and nobody has missed it, least of all anybody who actually had to look at it. - The docs build was controlled by a complex mess of makefilese that few dared to touch. Mauro has moved that logic into a new program (tools/docs/sphinx-build-wrapper) that, with any luck at all, will be far easier to understand and maintain. - The get_feat.pl program, used to access information under Documentation/features/, has been rewritten in Python, bringing an end to the use of Perl in the docs subsystem. - The top-level README file has been reorganized into a more reader-friendly presentation. - A lot of Chinese translation additions - Typo fixes and documentation updates as usual" * tag 'docs-6.19' of git://git.lwn.net/linux: (164 commits) docs: makefile: move rustdoc check to the build wrapper README: restructure with role-based documentation and guidelines docs: kdoc: various fixes for grammar, spelling, punctuation docs: kdoc_parser: use '@' for Excess enum value docs: submitting-patches: Clarify that removal of Acks needs explanation too docs: kdoc_parser: add data/function attributes to ignore docs: MAINTAINERS: update Mauro's files/paths docs/zh_CN: Add wd719x.rst translation docs/zh_CN: Add libsas.rst translation get_feat.pl: remove it, as it got replaced by get_feat.py Documentation/sphinx/kernel_feat.py: use class directly tools/docs/get_feat.py: convert get_feat.pl to Python Documentation/admin-guide: fix typo and comment in cscope example docs/zh_CN: Add data-integrity.rst translation docs/zh_CN: Add blk-mq.rst translation docs/zh_CN: Add block/index.rst translation docs/zh_CN: Update the Chinese translation of kbuild.rst docs: bring some order to our Python module hierarchy docs: Move the python libraries to tools/lib/python Documentation/kernel-parameters: Move the kernel build options ...
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt102
1 files changed, 100 insertions, 2 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 2b465eab41a1..1e89d122f084 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1,3 +1,101 @@
+ ACPI ACPI support is enabled.
+ AGP AGP (Accelerated Graphics Port) is enabled.
+ ALSA ALSA sound support is enabled.
+ APIC APIC support is enabled.
+ APM Advanced Power Management support is enabled.
+ APPARMOR AppArmor support is enabled.
+ ARM ARM architecture is enabled.
+ ARM64 ARM64 architecture is enabled.
+ AX25 Appropriate AX.25 support is enabled.
+ CLK Common clock infrastructure is enabled.
+ CMA Contiguous Memory Area support is enabled.
+ DRM Direct Rendering Management support is enabled.
+ DYNAMIC_DEBUG Build in debug messages and enable them at runtime
+ EARLY Parameter processed too early to be embedded in initrd.
+ EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
+ EFI EFI Partitioning (GPT) is enabled
+ EVM Extended Verification Module
+ FB The frame buffer device is enabled.
+ FTRACE Function tracing enabled.
+ GCOV GCOV profiling is enabled.
+ HIBERNATION HIBERNATION is enabled.
+ HW Appropriate hardware is enabled.
+ HYPER_V HYPERV support is enabled.
+ IMA Integrity measurement architecture is enabled.
+ IP_PNP IP DHCP, BOOTP, or RARP is enabled.
+ IPV6 IPv6 support is enabled.
+ ISAPNP ISA PnP code is enabled.
+ ISDN Appropriate ISDN support is enabled.
+ ISOL CPU Isolation is enabled.
+ JOY Appropriate joystick support is enabled.
+ KGDB Kernel debugger support is enabled.
+ KVM Kernel Virtual Machine support is enabled.
+ LIBATA Libata driver is enabled
+ LOONGARCH LoongArch architecture is enabled.
+ LOOP Loopback device support is enabled.
+ LP Printer support is enabled.
+ M68k M68k architecture is enabled.
+ These options have more detailed description inside of
+ Documentation/arch/m68k/kernel-options.rst.
+ MDA MDA console support is enabled.
+ MIPS MIPS architecture is enabled.
+ MOUSE Appropriate mouse support is enabled.
+ MSI Message Signaled Interrupts (PCI).
+ MTD MTD (Memory Technology Device) support is enabled.
+ NET Appropriate network support is enabled.
+ NFS Appropriate NFS support is enabled.
+ NUMA NUMA support is enabled.
+ OF Devicetree is enabled.
+ PARISC The PA-RISC architecture is enabled.
+ PCI PCI bus support is enabled.
+ PCIE PCI Express support is enabled.
+ PCMCIA The PCMCIA subsystem is enabled.
+ PNP Plug & Play support is enabled.
+ PPC PowerPC architecture is enabled.
+ PPT Parallel port support is enabled.
+ PS2 Appropriate PS/2 support is enabled.
+ PV_OPS A paravirtualized kernel is enabled.
+ RAM RAM disk support is enabled.
+ RDT Intel Resource Director Technology.
+ RISCV RISCV architecture is enabled.
+ S390 S390 architecture is enabled.
+ SCSI Appropriate SCSI support is enabled.
+ A lot of drivers have their options described inside
+ the Documentation/scsi/ sub-directory.
+ SDW SoundWire support is enabled.
+ SECURITY Different security models are enabled.
+ SELINUX SELinux support is enabled.
+ SERIAL Serial support is enabled.
+ SH SuperH architecture is enabled.
+ SMP The kernel is an SMP kernel.
+ SPARC Sparc architecture is enabled.
+ SUSPEND System suspend states are enabled.
+ SWSUSP Software suspend (hibernation) is enabled.
+ TPM TPM drivers are enabled.
+ UMS USB Mass Storage support is enabled.
+ USB USB support is enabled.
+ USBHID USB Human Interface Device support is enabled.
+ V4L Video For Linux support is enabled.
+ VGA The VGA console has been enabled.
+ VMMIO Driver for memory mapped virtio devices is enabled.
+ VT Virtual terminal support is enabled.
+ WDT Watchdog support is enabled.
+ X86-32 X86-32, aka i386 architecture is enabled.
+ X86-64 X86-64 architecture is enabled.
+ X86 Either 32-bit or 64-bit x86 (same as X86-32+X86-64)
+ X86_UV SGI UV support is enabled.
+ XEN Xen support is enabled
+ XTENSA xtensa architecture is enabled.
+
+In addition, the following text indicates that the option
+
+ BOOT Is a boot loader parameter.
+ BUGS= Relates to possible processor bugs on the said processor.
+ KNL Is a kernel start-up parameter.
+
+
+Kernel parameters
+
accept_memory= [MM]
Format: { eager | lazy }
default: lazy
@@ -6414,7 +6512,7 @@
that don't.
off - no mitigation
- auto - automatically select a migitation
+ auto - automatically select a mitigation
auto,nosmt - automatically select a mitigation,
disabling SMT if necessary for
the full mitigation (only on Zen1
@@ -7164,7 +7262,7 @@
limit. Default value is 8191 pools.
stacktrace [FTRACE]
- Enabled the stack tracer on boot up.
+ Enable the stack tracer on boot up.
stacktrace_filter=[function-list]
[FTRACE] Limit the functions that the stack tracer