diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ac22bb7719f..cb6a58b7712 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -956,6 +956,15 @@ config X86_PAE 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)" @@ -1493,6 +1502,10 @@ config ARCH_ENABLE_MEMORY_HOTPLUG 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 |