X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=Documentation%2Fkernel-parameters.txt;h=33121d6c827c6e5fcc85d72b1f5ee5f166b743a2;hb=437105f2a7f23899fd647e7ada683ba8dacf11ba;hp=fc84490fdb05ec538fa7951891c0372fdd805098;hpb=02a72fd6757c955ea8fe81e6ec3ab07a2a9e6ba5;p=safe%2Fjmp%2Flinux-2.6 diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index fc84490..33121d6 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -339,12 +339,6 @@ and is between 256 and 4096 characters. It is defined in the file Format: ,, See header of drivers/net/hamradio/baycom_ser_hdx.c. - blkmtd_device= [HW,MTD] - blkmtd_erasesz= - blkmtd_ro= - blkmtd_bs= - blkmtd_count= - boot_delay= Milliseconds to delay each printk during boot. Values larger than 10 seconds (10000) are changed to no delay (0). @@ -425,8 +419,11 @@ and is between 256 and 4096 characters. It is defined in the file over the 8254 in addition to over the IO-APIC. The kernel tries to set a sensible default. - hpet= [X86-32,HPET] option to disable HPET and use PIT. - Format: disable + hpet= [X86-32,HPET] option to control HPET usage + Format: { enable (default) | disable | force } + disable: disable HPET and use PIT instead + force: allow force enabled of undocumented chips (ICH4, + VIA, nVidia) com20020= [HW,NET] ARCnet - COM20020 chipset Format: @@ -507,8 +504,6 @@ and is between 256 and 4096 characters. It is defined in the file cs89x0_media= [HW,NET] Format: { rj45 | aui | bnc } - cyclades= [HW,SERIAL] Cyclades multi-serial port adapter. - dasd= [HW,NET] See header of drivers/s390/block/dasd_devmap.c. @@ -566,10 +561,6 @@ and is between 256 and 4096 characters. It is defined in the file See drivers/char/README.epca and Documentation/digiepca.txt. - dmascc= [HW,AX25,SERIAL] AX.25 Z80SCC driver with DMA - support available. - Format: [,[,..]] - dmasound= [HW,OSS] Sound subsystem buffers dscc4.setup= [NET] @@ -595,15 +586,6 @@ and is between 256 and 4096 characters. It is defined in the file eata= [HW,SCSI] - ec_intr= [HW,ACPI] ACPI Embedded Controller interrupt mode - Format: - 0: polling mode - non-0: interrupt mode (default) - - eda= [HW,PS2] - - edb= [HW,PS2] - edd= [EDD] Format: {"of[f]" | "sk[ipmbr]"} See comment in arch/i386/boot/edd.S @@ -786,6 +768,23 @@ and is between 256 and 4096 characters. It is defined in the file inttest= [IA64] + intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option + off + Disable intel iommu driver. + igfx_off [Default Off] + By default, gfx is mapped as normal device. If a gfx + device has a dedicated DMAR unit, the DMAR unit is + bypassed by not enabling DMAR with this option. In + this case, gfx device will use physical address for + DMA. + forcedac [x86_64] + With this option iommu will not optimize to look + for io virtual address below 32 bit forcing dual + address cycle on pci bus for cards supporting greater + than 32 bit addressing. The default is to look + for translation below 32 bit and if not available + then look in the higher range. + io7= [HW] IO7 for Marvel based alpha systems See comment before marvel_specify_io7 in arch/alpha/kernel/core_marvel.c. @@ -1440,7 +1439,9 @@ and is between 256 and 4096 characters. It is defined in the file Param: "schedule" - profile schedule points. Param: - step/bucket size as a power of 2 for statistical time based profiling. - Param: "sleep" - profile D-state sleeping (millisecs) + Param: "sleep" - profile D-state sleeping (millisecs). + Requires CONFIG_SCHEDSTATS + Param: "kvm" - profile VM exits. processor.max_cstate= [HW,ACPI] Limit processor to maximum C-state @@ -2000,10 +2001,6 @@ and is between 256 and 4096 characters. It is defined in the file norandmaps Don't use address space randomization Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space - unwind_debug=N N > 0 will enable dwarf2 unwinder debugging - This is useful to get more information why - you got a "dwarf2 unwinder stuck" - ______________________________________________________________________ TODO: