Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86

[pandora-kernel.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 085e4a0..7bf6bd2 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -75,10 +75,12 @@ parameter is applicable:
        PPT     Parallel port support is enabled.
        PS2     Appropriate PS/2 support is enabled.
        RAM     RAM disk support is enabled.
+       ROOTPLUG The example Root Plug LSM is enabled.
        S390    S390 architecture is enabled.
        SCSI    Appropriate SCSI support is enabled.
                        A lot of drivers has their options described inside of
                        Documentation/scsi/.
+       SECURITY Different security models are enabled.
        SELINUX SELinux support is enabled.
        SERIAL  Serial support is enabled.
        SH      SuperH architecture is enabled.
@@ -349,6 +351,11 @@ and is between 256 and 4096 characters. It is defined in the file
        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).
+                       Format: integer
+
        bttv.card=      [HW,V4L] bttv (bt848 + bt878 based grabber cards)
        bttv.radio=     Most important insmod options are available as
                        kernel args too.
@@ -368,6 +375,12 @@ and is between 256 and 4096 characters. It is defined in the file
                        possible to determine what the correct size should be.
                        This option provides an override for these situations.
 
+       capability.disable=
+                       [SECURITY] Disable capabilities.  This would normally
+                       be used only if an alternative security model is to be
+                       configured.  Potentially dangerous and should only be
+                       used if you are entirely sure of the consequences.
+
        chandev=        [HW,NET] Generic channel device initialisation
 
        checkreqprot    [SELINUX] Set initial checkreqprot flag value.
@@ -418,8 +431,10 @@ 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)
 
        com20020=       [HW,NET] ARCnet - COM20020 chipset
                        Format:
@@ -466,6 +481,16 @@ and is between 256 and 4096 characters. It is defined in the file
                        UART at the specified I/O port or MMIO address.
                        The options are the same as for ttyS, above.
 
+       no_console_suspend
+                       [HW] Never suspend the console
+                       Disable suspending of consoles during suspend and
+                       hibernate operations.  Once disabled, debugging
+                       messages can reach various consoles while the rest
+                       of the system is being put to sleep (ie, while
+                       debugging driver suspend/resume hooks).  This may
+                       not work reliably with all consoles, but is known
+                       to work with serial and VGA consoles.
+
        cpcihp_generic= [HW,PCI] Generic port I/O CompactPCI driver
                        Format:
                        <first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>]
@@ -474,6 +499,13 @@ and is between 256 and 4096 characters. It is defined in the file
                        [KNL] Reserve a chunk of physical memory to
                        hold a kernel to switch to with kexec on panic.
 
+       crashkernel=range1:size1[,range2:size2,...][@offset]
+                       [KNL] Same as above, but depends on the memory
+                       in the running system. The syntax of range is
+                       start-[end] where start and end are both
+                       a memory unit (amount[KMG]). See also
+                       Documentation/kdump/kdump.txt for a example.
+
        cs4232=         [HW,OSS]
                        Format: <io>,<irq>,<dma>,<dma2>,<mpuio>,<mpuirq>
 
@@ -906,6 +938,11 @@ and is between 256 and 4096 characters. It is defined in the file
                        n must be a power of two.  The default size
                        is set in the kernel config file.
 
+       logo.nologo     [FB] Disables display of the built-in Linux logo.
+                       This may be used to provide more screen space for
+                       kernel log messages and is useful when debugging
+                       kernel boot problems.
+
        lp=0            [LP]    Specify parallel ports to use, e.g,
        lp=port[,port...]       lp=none,parport0 (lp0 not configured, lp1 uses
        lp=reset                first parallel port). 'lp=0' disables the
@@ -976,6 +1013,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
        mce             [X86-32] Machine Check Exception
 
+       mce=option      [X86-64] See Documentation/x86_64/boot-options.txt
+
        md=             [HW] RAID subsystems devices and level
                        See Documentation/md.txt.
 
@@ -1463,14 +1502,10 @@ and is between 256 and 4096 characters. It is defined in the file
        raid=           [HW,RAID]
                        See Documentation/md.txt.
 
-       ramdisk=        [RAM] Sizes of RAM disks in kilobytes [deprecated]
-                       See Documentation/ramdisk.txt.
-
        ramdisk_blocksize=      [RAM]
                        See Documentation/ramdisk.txt.
 
        ramdisk_size=   [RAM] Sizes of RAM disks in kilobytes
-                       New name for the ramdisk parameter.
                        See Documentation/ramdisk.txt.
 
        rcu.blimit=     [KNL,BOOT] Set maximum number of finished
@@ -1533,6 +1568,15 @@ and is between 256 and 4096 characters. It is defined in the file
                        Useful for devices that are detected asynchronously
                        (e.g. USB and MMC devices).
 
+       root_plug.vendor_id=
+                       [ROOTPLUG] Override the default vendor ID
+
+       root_plug.product_id=
+                       [ROOTPLUG] Override the default product ID
+
+       root_plug.debug=
+                       [ROOTPLUG] Enable debugging output
+
        rw              [KNL] Mount root device read-write on boot
 
        S               [KNL] Run init in single mode