summaryrefslogtreecommitdiff
path: root/arch/x86/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index acb366bf6bc1..971feac13506 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -53,7 +53,6 @@ config X86
select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_KCOV if X86_64
- select ARCH_HAS_MMIO_FLUSH
select ARCH_HAS_PMEM_API if X86_64
# Causing hangs/crashes, see the commit that added this change for details.
select ARCH_HAS_REFCOUNT if BROKEN
@@ -1806,7 +1805,9 @@ config X86_SMAP
config X86_INTEL_MPX
prompt "Intel MPX (Memory Protection Extensions)"
def_bool n
- depends on CPU_SUP_INTEL
+ # Note: only available in 64-bit mode due to VMA flags shortage
+ depends on CPU_SUP_INTEL && X86_64
+ select ARCH_USES_HIGH_VMA_FLAGS
---help---
MPX provides hardware features that can be used in
conjunction with compiler-instrumented code to check
@@ -2321,6 +2322,10 @@ source "kernel/livepatch/Kconfig"
endmenu
+config ARCH_HAS_ADD_PAGES
+ def_bool y
+ depends on X86_64 && ARCH_ENABLE_MEMORY_HOTPLUG
+
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
depends on X86_64 || (X86_32 && HIGHMEM)
@@ -2341,6 +2346,10 @@ config ARCH_ENABLE_HUGEPAGE_MIGRATION
def_bool y
depends on X86_64 && HUGETLB_PAGE && MIGRATION
+config ARCH_ENABLE_THP_MIGRATION
+ def_bool y
+ depends on X86_64 && TRANSPARENT_HUGEPAGE
+
menu "Power management and ACPI options"
config ARCH_HIBERNATION_HEADER