config ARCH_PHYS_ADDR_T_64BIT
def_bool X86_64 || X86_PAE
+config DIRECT_GBPAGES
+ bool "Enable 1GB pages for kernel pagetables" if EMBEDDED
+ default y
+ depends on X86_64
+ help
+ Allow the kernel linear mapping to use 1GB pages on CPUs that
+ support it. This can improve the kernel's performance a tiny bit by
+ reducing TLB pressure. If in doubt, say "Y".
+
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
def_bool y
depends on X86_64 || (X86_32 && HIGHMEM)
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+ def_bool y
+ depends on MEMORY_HOTPLUG
+
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool X86_64
depends on NUMA