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authorPaul Mundt <lethal@linux-sh.org>2009-09-16 00:48:32 -0400
committerPaul Mundt <lethal@linux-sh.org>2009-09-16 00:48:32 -0400
commitea88023b3491a384575ebcd5e8a449e841a28a24 (patch)
treef46e3d8302e44dc55ce31823501e100472d29683 /Documentation/kernel-parameters.txt
parenta6f15ade97989d414e9bf33874c9d5d1f39808ec (diff)
parent0cb583fd2862f19ea88b02eb307d11c09e51e2f8 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/sh/kernel/vmlinux.lds.S
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt89
1 files changed, 84 insertions, 5 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 76c355214dc3..574ee67b6181 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -57,6 +57,7 @@ parameter is applicable:
57 ISAPNP ISA PnP code is enabled. 57 ISAPNP ISA PnP code is enabled.
58 ISDN Appropriate ISDN support is enabled. 58 ISDN Appropriate ISDN support is enabled.
59 JOY Appropriate joystick support is enabled. 59 JOY Appropriate joystick support is enabled.
60 KVM Kernel Virtual Machine support is enabled.
60 LIBATA Libata driver is enabled 61 LIBATA Libata driver is enabled
61 LP Printer support is enabled. 62 LP Printer support is enabled.
62 LOOP Loopback device support is enabled. 63 LOOP Loopback device support is enabled.
@@ -1098,6 +1099,44 @@ and is between 256 and 4096 characters. It is defined in the file
1098 kstack=N [X86] Print N words from the kernel stack 1099 kstack=N [X86] Print N words from the kernel stack
1099 in oops dumps. 1100 in oops dumps.
1100 1101
1102 kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
1103 Default is 0 (don't ignore, but inject #GP)
1104
1105 kvm.oos_shadow= [KVM] Disable out-of-sync shadow paging.
1106 Default is 1 (enabled)
1107
1108 kvm-amd.nested= [KVM,AMD] Allow nested virtualization in KVM/SVM.
1109 Default is 0 (off)
1110
1111 kvm-amd.npt= [KVM,AMD] Disable nested paging (virtualized MMU)
1112 for all guests.
1113 Default is 1 (enabled) if in 64bit or 32bit-PAE mode
1114
1115 kvm-intel.bypass_guest_pf=
1116 [KVM,Intel] Disables bypassing of guest page faults
1117 on Intel chips. Default is 1 (enabled)
1118
1119 kvm-intel.ept= [KVM,Intel] Disable extended page tables
1120 (virtualized MMU) support on capable Intel chips.
1121 Default is 1 (enabled)
1122
1123 kvm-intel.emulate_invalid_guest_state=
1124 [KVM,Intel] Enable emulation of invalid guest states
1125 Default is 0 (disabled)
1126
1127 kvm-intel.flexpriority=
1128 [KVM,Intel] Disable FlexPriority feature (TPR shadow).
1129 Default is 1 (enabled)
1130
1131 kvm-intel.unrestricted_guest=
1132 [KVM,Intel] Disable unrestricted guest feature
1133 (virtualized real and unpaged mode) on capable
1134 Intel chips. Default is 1 (enabled)
1135
1136 kvm-intel.vpid= [KVM,Intel] Disable Virtual Processor Identification
1137 feature (tagged TLBs) on capable Intel chips.
1138 Default is 1 (enabled)
1139
1101 l2cr= [PPC] 1140 l2cr= [PPC]
1102 1141
1103 l3cr= [PPC] 1142 l3cr= [PPC]
@@ -1503,6 +1542,14 @@ and is between 256 and 4096 characters. It is defined in the file
1503 [NFS] set the TCP port on which the NFSv4 callback 1542 [NFS] set the TCP port on which the NFSv4 callback
1504 channel should listen. 1543 channel should listen.
1505 1544
1545 nfs.cache_getent=
1546 [NFS] sets the pathname to the program which is used
1547 to update the NFS client cache entries.
1548
1549 nfs.cache_getent_timeout=
1550 [NFS] sets the timeout after which an attempt to
1551 update a cache entry is deemed to have failed.
1552
1506 nfs.idmap_cache_timeout= 1553 nfs.idmap_cache_timeout=
1507 [NFS] set the maximum lifetime for idmapper cache 1554 [NFS] set the maximum lifetime for idmapper cache
1508 entries. 1555 entries.
@@ -1535,6 +1582,11 @@ and is between 256 and 4096 characters. It is defined in the file
1535 symbolic names: lapic and ioapic 1582 symbolic names: lapic and ioapic
1536 Example: nmi_watchdog=2 or nmi_watchdog=panic,lapic 1583 Example: nmi_watchdog=2 or nmi_watchdog=panic,lapic
1537 1584
1585 netpoll.carrier_timeout=
1586 [NET] Specifies amount of time (in seconds) that
1587 netpoll should wait for a carrier. By default netpoll
1588 waits 4 seconds.
1589
1538 no387 [BUGS=X86-32] Tells the kernel to use the 387 maths 1590 no387 [BUGS=X86-32] Tells the kernel to use the 387 maths
1539 emulation library even if a 387 maths coprocessor 1591 emulation library even if a 387 maths coprocessor
1540 is present. 1592 is present.
@@ -1919,11 +1971,12 @@ and is between 256 and 4096 characters. It is defined in the file
1919 Format: { 0 | 1 } 1971 Format: { 0 | 1 }
1920 See arch/parisc/kernel/pdc_chassis.c 1972 See arch/parisc/kernel/pdc_chassis.c
1921 1973
1922 percpu_alloc= [X86] Select which percpu first chunk allocator to use. 1974 percpu_alloc= Select which percpu first chunk allocator to use.
1923 Allowed values are one of "lpage", "embed" and "4k". 1975 Currently supported values are "embed" and "page".
1924 See comments in arch/x86/kernel/setup_percpu.c for 1976 Archs may support subset or none of the selections.
1925 details on each allocator. This parameter is primarily 1977 See comments in mm/percpu.c for details on each
1926 for debugging and performance comparison. 1978 allocator. This parameter is primarily for debugging
1979 and performance comparison.
1927 1980
1928 pf. [PARIDE] 1981 pf. [PARIDE]
1929 See Documentation/blockdev/paride.txt. 1982 See Documentation/blockdev/paride.txt.
@@ -2395,6 +2448,18 @@ and is between 256 and 4096 characters. It is defined in the file
2395 stifb= [HW] 2448 stifb= [HW]
2396 Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]] 2449 Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]]
2397 2450
2451 sunrpc.min_resvport=
2452 sunrpc.max_resvport=
2453 [NFS,SUNRPC]
2454 SunRPC servers often require that client requests
2455 originate from a privileged port (i.e. a port in the
2456 range 0 < portnr < 1024).
2457 An administrator who wishes to reserve some of these
2458 ports for other uses may adjust the range that the
2459 kernel's sunrpc client considers to be privileged
2460 using these two parameters to set the minimum and
2461 maximum port values.
2462
2398 sunrpc.pool_mode= 2463 sunrpc.pool_mode=
2399 [NFS] 2464 [NFS]
2400 Control how the NFS server code allocates CPUs to 2465 Control how the NFS server code allocates CPUs to
@@ -2411,6 +2476,15 @@ and is between 256 and 4096 characters. It is defined in the file
2411 pernode one pool for each NUMA node (equivalent 2476 pernode one pool for each NUMA node (equivalent
2412 to global on non-NUMA machines) 2477 to global on non-NUMA machines)
2413 2478
2479 sunrpc.tcp_slot_table_entries=
2480 sunrpc.udp_slot_table_entries=
2481 [NFS,SUNRPC]
2482 Sets the upper limit on the number of simultaneous
2483 RPC calls that can be sent from the client to a
2484 server. Increasing these values may allow you to
2485 improve throughput, but will also increase the
2486 amount of memory reserved for use by the client.
2487
2414 swiotlb= [IA-64] Number of I/O TLB slabs 2488 swiotlb= [IA-64] Number of I/O TLB slabs
2415 2489
2416 switches= [HW,M68k] 2490 switches= [HW,M68k]
@@ -2480,6 +2554,11 @@ and is between 256 and 4096 characters. It is defined in the file
2480 trace_buf_size=nn[KMG] 2554 trace_buf_size=nn[KMG]
2481 [FTRACE] will set tracing buffer size. 2555 [FTRACE] will set tracing buffer size.
2482 2556
2557 trace_event=[event-list]
2558 [FTRACE] Set and start specified trace events in order
2559 to facilitate early boot debugging.
2560 See also Documentation/trace/events.txt
2561
2483 trix= [HW,OSS] MediaTrix AudioTrix Pro 2562 trix= [HW,OSS] MediaTrix AudioTrix Pro
2484 Format: 2563 Format:
2485 <io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq> 2564 <io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq>