Merge 'acpi-2.6.12' branch into to-akpm
[sfrench/cifs-2.6.git] / Documentation / kernel-parameters.txt
index 3c684ef6352ed820270fbcabd33beffe6cffdbff..3d5cd7a09b2fc1aa56b6c197ee8d35df7116ec4d 100644 (file)
@@ -37,7 +37,7 @@ restrictions referred to are that the relevant option is valid if:
        IA-32   IA-32 aka i386 architecture is enabled.
        IA-64   IA-64 architecture is enabled.
        IOSCHED More than one I/O scheduler is enabled.
-       IP_PNP  IP DCHP, BOOTP, or RARP is enabled.
+       IP_PNP  IP DHCP, BOOTP, or RARP is enabled.
        ISAPNP  ISA PnP code is enabled.
        ISDN    Appropriate ISDN support is enabled.
        JOY     Appropriate joystick support is enabled.
@@ -363,6 +363,10 @@ running once the system is up.
        cpia_pp=        [HW,PPT]
                        Format: { parport<nr> | auto | none }
 
+       crashkernel=nn[KMG]@ss[KMG]
+                       [KNL] Reserve a chunk of physical memory to
+                       hold a kernel to switch to with kexec on panic.
+
        cs4232=         [HW,OSS]
                        Format: <io>,<irq>,<dma>,<dma2>,<mpuio>,<mpuirq>
 
@@ -452,6 +456,10 @@ running once the system is up.
                        Format: {"as"|"cfq"|"deadline"|"noop"}
                        See Documentation/block/as-iosched.txt
                        and Documentation/block/deadline-iosched.txt for details.
+       elfcorehdr=     [IA-32]
+                       Specifies physical address of start of kernel core image
+                       elf header.
+                       See Documentation/kdump.txt for details.
 
        enforcing       [SELINUX] Set initial enforcing status.
                        Format: {"0" | "1"}
@@ -553,6 +561,9 @@ running once the system is up.
 
        i810=           [HW,DRM]
 
+       i8k.ignore_dmi  [HW] Continue probing hardware even if DMI data
+                       indicates that the driver is running on unsupported
+                       hardware.
        i8k.force       [HW] Activate i8k driver even if SMM BIOS signature
                        does not match list of supported models.
        i8k.power_status
@@ -616,6 +627,17 @@ running once the system is up.
        ips=            [HW,SCSI] Adaptec / IBM ServeRAID controller
                        See header of drivers/scsi/ips.c.
 
+       irqfixup        [HW]
+                       When an interrupt is not handled search all handlers
+                       for it. Intended to get systems with badly broken
+                       firmware running.
+
+       irqpoll         [HW]
+                       When an interrupt is not handled search all handlers
+                       for it. Also check all handlers each timer
+                       interrupt. Intended to get systems with badly broken
+                       firmware running.
+
        isapnp=         [ISAPNP]
                        Format: <RDP>, <reset>, <pci_scan>, <verbosity>
 
@@ -741,6 +763,9 @@ running once the system is up.
        maxcpus=        [SMP] Maximum number of processors that an SMP kernel
                        should make use of
 
+       max_addr=[KMG]  [KNL,BOOT,ia64] All physical memory greater than or
+                       equal to this physical address is ignored.
+
        max_luns=       [SCSI] Maximum number of LUNs to probe
                        Should be between 1 and 2^32-1.
 
@@ -1024,6 +1049,10 @@ running once the system is up.
                irqmask=0xMMMM          [IA-32] Set a bit mask of IRQs allowed to be assigned
                                        automatically to PCI devices. You can make the kernel
                                        exclude IRQs of your ISA cards this way.
+               pirqaddr=0xAAAAA        [IA-32] Specify the physical address
+                                       of the PIRQ table (normally generated
+                                       by the BIOS) if it is outside the
+                                       F0000h-100000h range.
                lastbus=N               [IA-32] Scan all buses till bus #N. Can be useful
                                        if the kernel is unable to find your secondary buses
                                        and you want to tell it explicitly which ones they are.
@@ -1109,7 +1138,7 @@ running once the system is up.
                        See Documentation/ramdisk.txt.
 
        psmouse.proto=  [HW,MOUSE] Highest PS2 mouse protocol extension to
-                       probe for (bare|imps|exps).
+                       probe for (bare|imps|exps|lifebook|any).
        psmouse.rate=   [HW,MOUSE] Set desired mouse report rate, in reports
                        per second.
        psmouse.resetafter=