for all guests.
Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
+ kvm-arm.vgic_v3_group0_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 group-0
+ system registers
+
+ kvm-arm.vgic_v3_group1_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 group-1
+ system registers
+
+ kvm-arm.vgic_v3_common_trap=
+ [KVM,ARM] Trap guest accesses to GICv3 common
+ system registers
+
kvm-intel.ept= [KVM,Intel] Disable extended page tables
(virtualized MMU) support on capable Intel chips.
Default is 1 (enabled)
that the amount of memory usable for all allocations
is not too small.
- movable_node [KNL] Boot-time switch to enable the effects
- of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details.
+ movable_node [KNL] Boot-time switch to make hotplugable memory
+ NUMA nodes to be movable. This means that the memory
+ of such nodes will be usable only for movable
+ allocations which rules out almost all kernel
+ allocations. Use with caution!
MTD_Partition= [MTD]
Format: <name>,<region-number>,<size>,<offset>
slab_nomerge [MM]
Disable merging of slabs with similar size. May be
necessary if there is some reason to distinguish
- allocs to different slabs. Debug options disable
- merging on their own.
+ allocs to different slabs, especially in hardened
+ environments where the risk of heap overflows and
+ layout control by attackers can usually be
+ frustrated by disabling merging. This will reduce
+ most of the exposure of a heap attack to a single
+ cache (risks via metadata attacks are mostly
+ unchanged). Debug options disable merging on their
+ own.
For more information see Documentation/vm/slub.txt.
slab_max_order= [MM, SLAB]