Merge branches 'x86/xen', 'x86/build', 'x86/microcode', 'x86/mm-debug-v2', 'x86/memor...

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

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 92ddd4a..2443f5b 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -284,6 +284,11 @@ and is between 256 and 4096 characters. It is defined in the file
                        isolate - enable device isolation (each device, as far
                                  as possible, will get its own protection
                                  domain)
+                       fullflush - enable flushing of IO/TLB entries when
+                                   they are unmapped. Otherwise they are
+                                   flushed before they will be reused, which
+                                   is a lot of faster
+
        amd_iommu_size= [HW,X86-64]
                        Define the size of the aperture for the AMD IOMMU
                        driver. Possible values are:
@@ -365,6 +370,8 @@ and is between 256 and 4096 characters. It is defined in the file
                        no delay (0).
                        Format: integer
 
+       bootmem_debug   [KNL] Enable bootmem allocator debug messages.
+
        bttv.card=      [HW,V4L] bttv (bt848 + bt878 based grabber cards)
        bttv.radio=     Most important insmod options are available as
                        kernel args too.
@@ -461,12 +468,6 @@ and is between 256 and 4096 characters. It is defined in the file
                        Range: 0 - 8192
                        Default: 64
 
-       disable_8254_timer
-       enable_8254_timer
-                       [IA32/X86_64] Disable/Enable interrupt 0 timer routing
-                       over the 8254 in addition to over the IO-APIC. The
-                       kernel tries to set a sensible default.
-
        hpet=           [X86-32,HPET] option to control HPET usage
                        Format: { enable (default) | disable | force }
                        disable: disable HPET and use PIT instead
@@ -1019,6 +1020,10 @@ and is between 256 and 4096 characters. It is defined in the file
                        (only serial suported for now)
                        Format: <serial_device>[,baud]
 
+       kmac=           [MIPS] korina ethernet MAC address.
+                       Configure the RouterBoard 532 series on-chip
+                       Ethernet adapter MAC address.
+
        l2cr=           [PPC]
 
        l3cr=           [PPC]
@@ -1073,6 +1078,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
                        * [no]ncq: Turn on or off NCQ.
 
+                       * nohrst, nosrst, norst: suppress hard, soft
+                          and both resets.
+
                        If there are multiple matching configurations changing
                        the same attribute, the last one is used.
 
@@ -1224,6 +1232,29 @@ and is between 256 and 4096 characters. It is defined in the file
                                 or
                                 memmap=0x10000$0x18690000
 
+       memory_corruption_check=0/1 [X86]
+                       Some BIOSes seem to corrupt the first 64k of
+                       memory when doing things like suspend/resume.
+                       Setting this option will scan the memory
+                       looking for corruption.  Enabling this will
+                       both detect corruption and prevent the kernel
+                       from using the memory being corrupted.
+                       However, its intended as a diagnostic tool; if
+                       repeatable BIOS-originated corruption always
+                       affects the same memory, you can use memmap=
+                       to prevent the kernel from using that memory.
+
+       memory_corruption_check_size=size [X86]
+                       By default it checks for corruption in the low
+                       64k, making this memory unavailable for normal
+                       use.  Use this parameter to scan for
+                       corruption in more or less memory.
+
+       memory_corruption_check_period=seconds [X86]
+                       By default it checks for corruption every 60
+                       seconds.  Use this parameter to check at some
+                       other rate.  0 disables periodic checking.
+
        memtest=        [KNL,X86] Enable memtest
                        Format: <integer>
                        range: 0,4 : pattern number
@@ -1421,6 +1452,12 @@ and is between 256 and 4096 characters. It is defined in the file
 
        nolapic_timer   [X86-32,APIC] Do not use the local APIC timer.
 
+       nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
+
+       x2apic_phys     [X86-64,APIC] Use x2apic physical mode instead of
+                       default x2apic cluster mode on platforms
+                       supporting x2apic.
+
        noltlbs         [PPC] Do not use large page/tlb entries for kernel
                        lowmem mapping on PPC40x.
 
@@ -1878,6 +1915,12 @@ and is between 256 and 4096 characters. It is defined in the file
        shapers=        [NET]
                        Maximal number of shapers.
 
+       show_msr=       [x86] show boot-time MSR settings
+                       Format: { <integer> }
+                       Show boot-time (BIOS-initialized) MSR settings.
+                       The parameter means the number of CPUs to show,
+                       for example 1 means boot CPU only.
+
        sim710=         [SCSI,HW]
                        See header of drivers/scsi/sim710.c.