diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index b52f47d588b..312fe77764a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -271,6 +271,17 @@ and is between 256 and 4096 characters. It is defined in the file aic79xx= [HW,SCSI] See Documentation/scsi/aic79xx.txt. + amd_iommu= [HW,X86-84] + Pass parameters to the AMD IOMMU driver in the system. + Possible values are: + isolate - enable device isolation (each device, as far + as possible, will get its own protection + domain) + amd_iommu_size= [HW,X86-64] + Define the size of the aperture for the AMD IOMMU + driver. Possible values are: + '32M', '64M' (default), '128M', '256M', '512M', '1G' + amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT Format: <a>,<b> @@ -560,6 +571,8 @@ and is between 256 and 4096 characters. It is defined in the file debug_objects [KNL] Enable object debugging + debugpat [X86] Enable PAT debugging + decnet.addr= [HW,NET] Format: <area>[,<node>] See also Documentation/networking/decnet.txt. @@ -599,6 +612,29 @@ and is between 256 and 4096 characters. It is defined in the file See drivers/char/README.epca and Documentation/digiepca.txt. + disable_mtrr_cleanup [X86] + enable_mtrr_cleanup [X86] + The kernel tries to adjust MTRR layout from continuous + to discrete, to make X server driver able to add WB + entry later. This parameter enables/disables that. + + mtrr_chunk_size=nn[KMG] [X86] + used for mtrr cleanup. It is largest continous chunk + that could hold holes aka. UC entries. + + mtrr_gran_size=nn[KMG] [X86] + Used for mtrr cleanup. It is granularity of mtrr block. + Default is 1. + Large value could prevent small alignment from + using up MTRRs. + + mtrr_spare_reg_nr=n [X86] + Format: <integer> + Range: 0,7 : spare reg number + Default : 1 + Used for mtrr cleanup. It is spare mtrr entries number. + Set to 2 or more if your graphical card needs more. + disable_mtrr_trim [X86, Intel and AMD only] By default the kernel will trim any uncacheable memory out of your available memory pool based on @@ -722,9 +758,6 @@ and is between 256 and 4096 characters. It is defined in the file hd= [EIDE] (E)IDE hard drive subsystem geometry Format: <cyl>,<head>,<sect> - hd?= [HW] (E)IDE subsystem - hd?lun= See Documentation/ide/ide.txt. - highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact size of <nn>. This works even on boxes that have no highmem otherwise. This also works to reduce highmem @@ -1208,6 +1241,11 @@ and is between 256 and 4096 characters. It is defined in the file mtdparts= [MTD] See drivers/mtd/cmdlinepart.c. + mtdset= [ARM] + ARM/S3C2412 JIVE boot control + + See arch/arm/mach-s3c2412/mach-jive.c + mtouchusb.raw_coordinates= [HW] Make the MicroTouch USB driver use raw coordinates ('y', default) or cooked coordinates ('n') @@ -1571,6 +1609,10 @@ and is between 256 and 4096 characters. It is defined in the file Format: { parport<nr> | timid | 0 } See also Documentation/parport.txt. + pmtmr= [X86] Manual setup of pmtmr I/O Port. + Override pmtimer IOPort with a hex value. + e.g. pmtmr=0x508 + pnpacpi= [ACPI] { off } @@ -2116,6 +2158,9 @@ and is between 256 and 4096 characters. It is defined in the file usbhid.mousepoll= [USBHID] The interval which mice are to be polled at. + add_efi_memmap [EFI; x86-32,X86-64] Include EFI memory map in + kernel's map of available physical RAM. + vdso= [X86-32,SH,x86-64] vdso=2: enable compat VDSO (default with COMPAT_VDSO) vdso=1: enable VDSO (default) |