1 files changed, 67 insertions, 0 deletions

diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
new file mode 100644
index 000000000000..1d97bd84b6fb
--- /dev/null
+++ b/arch/x86/um/Kconfig
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+mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
+
+source "arch/um/Kconfig.common"
+
+menu "UML-specific options"
+
+menu "Host processor type and features"
+
+config CMPXCHG_LOCAL
+        bool
+        default n
+
+config CMPXCHG_DOUBLE
+        bool
+        default n
+
+source "arch/x86/Kconfig.cpu"
+
+endmenu
+
+config UML_X86
+        def_bool y
+        select GENERIC_FIND_FIRST_BIT
+
+config 64BIT
+        bool
+        default SUBARCH = "x86_64"
+
+config X86_32
+        def_bool !64BIT
+        select HAVE_AOUT
+
+config X86_64
+        def_bool 64BIT
+
+config RWSEM_XCHGADD_ALGORITHM
+        def_bool X86_XADD && 64BIT
+
+config RWSEM_GENERIC_SPINLOCK
+        def_bool !RWSEM_XCHGADD_ALGORITHM
+
+config 3_LEVEL_PGTABLES
+        bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
+        default 64BIT
+        depends on EXPERIMENTAL
+        help
+        Three-level pagetables will let UML have more than 4G of physical
+        memory.  All the memory that can't be mapped directly will be treated
+        as high memory.
+
+        However, this it experimental on 32-bit architectures, so if unsure say
+        N (on x86-64 it's automatically enabled, instead, as it's safe there).
+
+config ARCH_HAS_SC_SIGNALS
+        def_bool !64BIT
+
+config ARCH_REUSE_HOST_VSYSCALL_AREA
+        def_bool !64BIT
+
+config GENERIC_HWEIGHT
+        def_bool y
+
+source "arch/um/Kconfig.um"
+
+endmenu
+
+source "arch/um/Kconfig.rest"