dm crypt: offload writes to thread
[linux-2.6-block.git] / Documentation / kernel-parameters.txt
index 176d4fe4f076be0c785de56ade5cbca399e591e2..a89e326375702dae82244472e9955564e2949060 100644 (file)
@@ -1470,6 +1470,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                       no_hwp
                         Do not enable hardware P state control (HWP)
                         if available.
+               hwp_only
+                       Only load intel_pstate on systems which support
+                       hardware P state control (HWP) if available.
 
        intremap=       [X86-64, Intel-IOMMU]
                        on      enable Interrupt Remapping (default)
@@ -1494,6 +1497,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                forcesac
                soft
                pt              [x86, IA-64]
+               nobypass        [PPC/POWERNV]
+                       Disable IOMMU bypass, using IOMMU for PCI devices.
 
 
        io7=            [HW] IO7 for Marvel based alpha systems
@@ -3207,6 +3212,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        retain_initrd   [RAM] Keep initrd memory after extraction
 
+       rfkill.default_state=
+               0       "airplane mode".  All wifi, bluetooth, wimax, gps, fm,
+                       etc. communication is blocked by default.
+               1       Unblocked.
+
+       rfkill.master_switch_mode=
+               0       The "airplane mode" button does nothing.
+               1       The "airplane mode" button toggles between everything
+                       blocked and the previous configuration.
+               2       The "airplane mode" button toggles between everything
+                       blocked and everything unblocked.
+
        rhash_entries=  [KNL,NET]
                        Set number of hash buckets for route cache