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-rw-r--r--Documentation/kernel-parameters.txt47
1 files changed, 44 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 4f82c856667f..dfb5bef24013 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -366,6 +366,12 @@ and is between 256 and 4096 characters. It is defined in the file
366 possible to determine what the correct size should be. 366 possible to determine what the correct size should be.
367 This option provides an override for these situations. 367 This option provides an override for these situations.
368 368
369 security= [SECURITY] Choose a security module to enable at boot.
370 If this boot parameter is not specified, only the first
371 security module asking for security registration will be
372 loaded. An invalid security module name will be treated
373 as if no module has been chosen.
374
369 capability.disable= 375 capability.disable=
370 [SECURITY] Disable capabilities. This would normally 376 [SECURITY] Disable capabilities. This would normally
371 be used only if an alternative security model is to be 377 be used only if an alternative security model is to be
@@ -763,11 +769,11 @@ and is between 256 and 4096 characters. It is defined in the file
763 Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]] 769 Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
764 770
765 ide= [HW] (E)IDE subsystem 771 ide= [HW] (E)IDE subsystem
766 Format: ide=nodma or ide=doubler or ide=reverse 772 Format: ide=nodma or ide=doubler
767 See Documentation/ide/ide.txt. 773 See Documentation/ide/ide.txt.
768 774
769 ide?= [HW] (E)IDE subsystem 775 ide?= [HW] (E)IDE subsystem
770 Format: ide?=noprobe or chipset specific parameters. 776 Format: ide?=ata66 or chipset specific parameters.
771 See Documentation/ide/ide.txt. 777 See Documentation/ide/ide.txt.
772 778
773 idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed 779 idebus= [HW] (E)IDE subsystem - VLB/PCI bus speed
@@ -812,6 +818,19 @@ and is between 256 and 4096 characters. It is defined in the file
812 818
813 inttest= [IA64] 819 inttest= [IA64]
814 820
821 iommu= [x86]
822 off
823 force
824 noforce
825 biomerge
826 panic
827 nopanic
828 merge
829 nomerge
830 forcesac
831 soft
832
833
815 intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option 834 intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option
816 off 835 off
817 Disable intel iommu driver. 836 Disable intel iommu driver.
@@ -928,6 +947,11 @@ and is between 256 and 4096 characters. It is defined in the file
928 kstack=N [X86-32,X86-64] Print N words from the kernel stack 947 kstack=N [X86-32,X86-64] Print N words from the kernel stack
929 in oops dumps. 948 in oops dumps.
930 949
950 kgdboc= [HW] kgdb over consoles.
951 Requires a tty driver that supports console polling.
952 (only serial suported for now)
953 Format: <serial_device>[,baud]
954
931 l2cr= [PPC] 955 l2cr= [PPC]
932 956
933 l3cr= [PPC] 957 l3cr= [PPC]
@@ -1136,6 +1160,11 @@ and is between 256 and 4096 characters. It is defined in the file
1136 or 1160 or
1137 memmap=0x10000$0x18690000 1161 memmap=0x10000$0x18690000
1138 1162
1163 memtest= [KNL,X86_64] Enable memtest
1164 Format: <integer>
1165 range: 0,4 : pattern number
1166 default : 0 <disable>
1167
1139 meye.*= [HW] Set MotionEye Camera parameters 1168 meye.*= [HW] Set MotionEye Camera parameters
1140 See Documentation/video4linux/meye.txt. 1169 See Documentation/video4linux/meye.txt.
1141 1170
@@ -1253,8 +1282,16 @@ and is between 256 and 4096 characters. It is defined in the file
1253 noexec [IA-64] 1282 noexec [IA-64]
1254 1283
1255 noexec [X86-32,X86-64] 1284 noexec [X86-32,X86-64]
1285 On X86-32 available only on PAE configured kernels.
1256 noexec=on: enable non-executable mappings (default) 1286 noexec=on: enable non-executable mappings (default)
1257 noexec=off: disable nn-executable mappings 1287 noexec=off: disable non-executable mappings
1288
1289 noexec32 [X86-64]
1290 This affects only 32-bit executables.
1291 noexec32=on: enable non-executable mappings (default)
1292 read doesn't imply executable mappings
1293 noexec32=off: disable non-executable mappings
1294 read implies executable mappings
1258 1295
1259 nofxsr [BUGS=X86-32] Disables x86 floating point extended 1296 nofxsr [BUGS=X86-32] Disables x86 floating point extended
1260 register save and restore. The kernel will only save 1297 register save and restore. The kernel will only save
@@ -1341,6 +1378,10 @@ and is between 256 and 4096 characters. It is defined in the file
1341 1378
1342 nowb [ARM] 1379 nowb [ARM]
1343 1380
1381 nptcg= [IA64] Override max number of concurrent global TLB
1382 purges which is reported from either PAL_VM_SUMMARY or
1383 SAL PALO.
1384
1344 numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA. 1385 numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
1345 one of ['zone', 'node', 'default'] can be specified 1386 one of ['zone', 'node', 'default'] can be specified
1346 This can be set from sysctl after boot. 1387 This can be set from sysctl after boot.