ARM: 7376/1: clkdev: Implement managed clk_get()
[linux-2.6.git] / Documentation / kernel-parameters.txt
index 6ca1f5c..4d5c565 100644 (file)
@@ -315,6 +315,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                    is a lot of faster
                        off       - do not initialize any AMD IOMMU found in
                                    the system
+                       force_isolation - Force device isolation for all
+                                         devices. The IOMMU driver is not
+                                         allowed anymore to lift isolation
+                                         requirements as needed. This option
+                                         does not override iommu=pt
 
        amijoy.map=     [HW,JOY] Amiga joystick support
                        Map of devices attached to JOY0DAT and JOY1DAT
@@ -1014,10 +1019,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        has the capability. With this option, super page will
                        not be supported.
        intremap=       [X86-64, Intel-IOMMU]
-                       Format: { on (default) | off | nosid }
                        on      enable Interrupt Remapping (default)
                        off     disable Interrupt Remapping
                        nosid   disable Source ID checking
+                       no_x2apic_optout
+                               BIOS x2APIC opt-out request will be ignored
 
        inttest=        [IA-64]
 
@@ -1036,7 +1042,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                nomerge
                forcesac
                soft
-               pt      [x86, IA-64]
+               pt              [x86, IA-64]
+               group_mf        [x86, IA-64]
+
 
        io7=            [HW] IO7 for Marvel based alpha systems
                        See comment before marvel_specify_io7 in
@@ -1350,9 +1358,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        it is equivalent to "nosmp", which also disables
                        the IO APIC.
 
-       max_loop=       [LOOP] Maximum number of loopback devices that can
-                       be mounted
-                       Format: <1-256>
+       max_loop=       [LOOP] The number of loop block devices that get
+       (loop.max_loop) unconditionally pre-created at init time. The default
+                       number is configured by BLK_DEV_LOOP_MIN_COUNT. Instead
+                       of statically allocating a predefined number, loop
+                       devices can be requested on-demand with the
+                       /dev/loop-control interface.
 
        mcatest=        [IA-64]
 
@@ -2083,9 +2094,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        Override pmtimer IOPort with a hex value.
                        e.g. pmtmr=0x508
 
-       pnp.debug       [PNP]
-                       Enable PNP debug messages.  This depends on the
-                       CONFIG_PNP_DEBUG_MESSAGES option.
+       pnp.debug=1     [PNP]
+                       Enable PNP debug messages (depends on the
+                       CONFIG_PNP_DEBUG_MESSAGES option).  Change at run-time
+                       via /sys/module/pnp/parameters/debug.  We always show
+                       current resource usage; turning this on also shows
+                       possible settings and some assignment information.
 
        pnpacpi=        [ACPI]
                        { off }
@@ -2700,10 +2714,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        functions are at fixed addresses, they make nice
                        targets for exploits that can control RIP.
 
-                       emulate     [default] Vsyscalls turn into traps and are
-                                   emulated reasonably safely.
+                       emulate     Vsyscalls turn into traps and are emulated
+                                   reasonably safely.
 
-                       native      Vsyscalls are native syscall instructions.
+                       native      [default] Vsyscalls are native syscall
+                                   instructions.
                                    This is a little bit faster than trapping
                                    and makes a few dynamic recompilers work
                                    better than they would in emulation mode.