[ACPI] acpi_pm
[ARM] imx_timer1,OSTS,netx_timer,mpu_timer2,
pxa_timer,timer3,32k_counter,timer0_1
- [AVR32] avr32
[X86-32] pit,hpet,tsc;
scx200_hrt on Geode; cyclone on IBM x440
[MIPS] MIPS
earlyprintk=ttySn[,baudrate]
earlyprintk=dbgp[debugController#]
earlyprintk=pciserial,bus:device.function[,baudrate]
+ earlyprintk=xdbc[xhciController#]
earlyprintk is useful when the kernel crashes before
the normal console is initialized. It is not enabled by
extended tables themselves, and also PASID support. With
this option set, extended tables will not be used even
on hardware which claims to support them.
+ tboot_noforce [Default Off]
+ Do not force the Intel IOMMU enabled under tboot.
+ By default, tboot will force Intel IOMMU on, which
+ could harm performance of some high-throughput
+ devices like 40GBit network cards, even if identity
+ mapping is enabled.
+ Note that using this option lowers the security
+ provided by tboot because it makes the system
+ vulnerable to DMA attacks.
intel_idle.max_cstate= [KNL,HW,ACPI,X86]
0 disables intel_idle and fall back on acpi_idle.
nobypass [PPC/POWERNV]
Disable IOMMU bypass, using IOMMU for PCI devices.
+ iommu.passthrough=
+ [ARM64] Configure DMA to bypass the IOMMU by default.
+ Format: { "0" | "1" }
+ 0 - Use IOMMU translation for DMA.
+ 1 - Bypass the IOMMU for DMA.
+ unset - Use IOMMU translation for DMA.
io7= [HW] IO7 for Marvel based alpha systems
See comment before marvel_specify_io7 in
osd-targets. Please see:
Documentation/filesystems/pnfs.txt for more explanations
- nmi_debug= [KNL,AVR32,SH] Specify one or more actions to take
+ nmi_debug= [KNL,SH] Specify one or more actions to take
when a NMI is triggered.
Format: [state][,regs][,debounce][,die]
ramdisk_size= [RAM] Sizes of RAM disks in kilobytes
See Documentation/blockdev/ramdisk.txt.
+ ras=option[,option,...] [KNL] RAS-specific options
+
+ cec_disable [X86]
+ Disable the Correctable Errors Collector,
+ see CONFIG_RAS_CEC help text.
+
rcu_nocbs= [KNL]
The argument is a cpu list, as described above.
usbhid.mousepoll=
[USBHID] The interval which mice are to be polled at.
+ usbhid.jspoll=
+ [USBHID] The interval which joysticks are to be polled at.
+
usb-storage.delay_use=
[UMS] The delay in seconds before a new device is
scanned for Logical Units (default 1).