APIC APIC support is enabled.
APM Advanced Power Management support is enabled.
AX25 Appropriate AX.25 support is enabled.
- CD Appropriate CD support is enabled.
DRM Direct Rendering Management support is enabled.
EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
EFI EFI Partitioning (GPT) is enabled
acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT
- acpi_generic_hotkey [HW,ACPI]
- Allow consolidated generic hotkey driver to
- override platform specific driver.
- See also Documentation/acpi-hotkey.txt.
-
acpi_pm_good [IA-32,X86-64]
Override the pmtimer bug detection: force the kernel
to assume that this machine's pmtimer latches its value
autotest [IA64]
- aztcd= [HW,CD] Aztech CD268 CDROM driver
- Format: <io>,0x79 (?)
-
baycom_epp= [HW,AX25]
Format: <io>,<mode>
possible to determine what the correct size should be.
This option provides an override for these situations.
- cdu31a= [HW,CD]
- Format: <io>,<irq>[,PAS]
- See header of drivers/cdrom/cdu31a.c.
-
chandev= [HW,NET] Generic channel device initialisation
checkreqprot [SELINUX] Set initial checkreqprot flag value.
hpet= [IA-32,HPET] option to disable HPET and use PIT.
Format: disable
- cm206= [HW,CD]
- Format: { auto | [<io>,][<irq>] }
-
com20020= [HW,NET] ARCnet - COM20020 chipset
Format:
<io>[,<irq>[,<nodeID>[,<backplane>[,<ckp>[,<timeout>]]]]]
gpt [EFI] Forces disk with valid GPT signature but
invalid Protective MBR to be treated as GPT.
- gscd= [HW,CD]
- Format: <io>
-
gvp11= [HW,SCSI]
hashdist= [KNL,NUMA] Large hashes allocated during boot
tasks in the system -- can cause problems and
suboptimal load balancer performance.
- isp16= [HW,CD]
- Format: <io>,<irq>,<dma>,<setup>
-
iucv= [HW,NET]
js= [HW,JOY] Analog joystick
mcatest= [IA-64]
- mcd= [HW,CD]
- Format: <port>,<irq>,<mitsumi_bug_93_wait>
-
- mcdx= [HW,CD]
-
mce [IA-32] Machine Check Exception
md= [HW] RAID subsystems devices and level
mga= [HW,DRM]
- migration_cost=
- [KNL,SMP] debug: override scheduler migration costs
- Format: <level-1-usecs>,<level-2-usecs>,...
- This debugging option can be used to override the
- default scheduler migration cost matrix. The numbers
- are indexed by 'CPU domain distance'.
- E.g. migration_cost=1000,2000,3000 on an SMT NUMA
- box will set up an intra-core migration cost of
- 1 msec, an inter-core migration cost of 2 msecs,
- and an inter-node migration cost of 3 msecs.
-
- WARNING: using the wrong values here can break
- scheduler performance, so it's only for scheduler
- development purposes, not production environments.
-
- migration_debug=
- [KNL,SMP] migration cost auto-detect verbosity
- Format=<0|1|2>
- If a system's migration matrix reported at bootup
- seems erroneous then this option can be used to
- increase verbosity of the detection process.
- We default to 0 (no extra messages), 1 will print
- some more information, and 2 will be really
- verbose (probably only useful if you also have a
- serial console attached to the system).
-
- migration_factor=
- [KNL,SMP] multiply/divide migration costs by a factor
- Format=<percent>
- This debug option can be used to proportionally
- increase or decrease the auto-detected migration
- costs for all entries of the migration matrix.
- E.g. migration_factor=150 will increase migration
- costs by 50%. (and thus the scheduler will be less
- eager migrating cache-hot tasks)
- migration_factor=80 will decrease migration costs
- by 20%. (thus the scheduler will be more eager to
- migrate tasks)
-
- WARNING: using the wrong values here can break
- scheduler performance, so it's only for scheduler
- development purposes, not production environments.
-
mousedev.tap_time=
[MOUSE] Maximum time between finger touching and
leaving touchpad surface for touch to be considered
oprofile.timer= [HW]
Use timer interrupt instead of performance counters
- optcd= [HW,CD]
- Format: <io>
-
osst= [HW,SCSI] SCSI Tape Driver
Format: <buffer_size>,<write_threshold>
See also Documentation/scsi/st.txt.
sbni= [NET] Granch SBNI12 leased line adapter
- sbpcd= [HW,CD] Soundblaster CD adapter
- Format: <io>,<type>
- See a comment before function sbpcd_setup() in
- drivers/cdrom/sbpcd.c.
-
sc1200wdt= [HW,WDT] SC1200 WDT (watchdog) driver
Format: <io>[,<timeout>[,<isapnp>]]
simeth= [IA-64]
simscsi=
- sjcd= [HW,CD]
- Format: <io>,<irq>,<dma>
- See header of drivers/cdrom/sjcd.c.
-
slram= [HW,MTD]
slub_debug [MM, SLUB]
snd-ymfpci= [HW,ALSA]
- sonycd535= [HW,CD]
- Format: <io>[,<irq>]
-
sonypi.*= [HW] Sony Programmable I/O Control Device driver
See Documentation/sonypi.txt