After an "unexpected" reboot, I found this Oops in my logs:

[karo-tx-linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index ea66883b9a0485624c3147c355e6ee4906692d24..fa3d180d63cad20e5cb9aced5365315632b78b33 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -307,6 +307,19 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        behaviour to be specified.  Bit 0 enables warnings,
                        bit 1 enables fixups, and bit 2 sends a segfault.
 
+       align_va_addr=  [X86-64]
+                       Align virtual addresses by clearing slice [14:12] when
+                       allocating a VMA at process creation time. This option
+                       gives you up to 3% performance improvement on AMD F15h
+                       machines (where it is enabled by default) for a
+                       CPU-intensive style benchmark, and it can vary highly in
+                       a microbenchmark depending on workload and compiler.
+
+                       1: only for 32-bit processes
+                       2: only for 64-bit processes
+                       on: enable for both 32- and 64-bit processes
+                       off: disable for both 32- and 64-bit processes
+
        amd_iommu=      [HW,X86-84]
                        Pass parameters to the AMD IOMMU driver in the system.
                        Possible values are:
@@ -1187,6 +1200,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        [KVM,Intel] Disable FlexPriority feature (TPR shadow).
                        Default is 1 (enabled)
 
+       kvm-intel.nested=
+                       [KVM,Intel] Enable VMX nesting (nVMX).
+                       Default is 0 (disabled)
+
        kvm-intel.unrestricted_guest=
                        [KVM,Intel] Disable unrestricted guest feature
                        (virtualized real and unpaged mode) on capable
@@ -1783,6 +1800,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        noresidual      [PPC] Don't use residual data on PReP machines.
 
+       nordrand        [X86] Disable the direct use of the RDRAND
+                       instruction even if it is supported by the
+                       processor.  RDRAND is still available to user
+                       space applications.
+
        noresume        [SWSUSP] Disables resume and restores original swap
                        space.