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authorAl Viro <viro@ftp.linux.org.uk>2011-08-18 20:06:39 +0100
committerRichard Weinberger <richard@nod.at>2011-11-02 14:15:05 +0100
commit5c48b108ecbf6505d929e64d50dace13ac2bdf34 (patch)
tree016904f84fbe05aa301c5cdfe712d90f6bb828fe /arch/x86/um/Kconfig
parent7bbe7204e93734fe79d8aac3e08a7cb4624b5004 (diff)
um: take arch/um/sys-x86 to arch/x86/um
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/x86/um/Kconfig')
-rw-r--r--arch/x86/um/Kconfig70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
new file mode 100644
index 000000000000..21bebe63df66
--- /dev/null
+++ b/arch/x86/um/Kconfig
@@ -0,0 +1,70 @@
+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 SMP_BROKEN
+ def_bool 64BIT
+
+config GENERIC_HWEIGHT
+ def_bool y
+
+source "arch/um/Kconfig.um"
+
+endmenu
+
+source "arch/um/Kconfig.rest"