summaryrefslogtreecommitdiffstats
path: root/arch/um/Kconfig.x86
diff options
context:
space:
mode:
authorAl Viro <viro@zeniv.linux.org.uk>2008-08-23 17:00:34 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:22 -0700
commit4198426af37e7122f2fda2538fa9dcaa19c5e397 (patch)
tree398a9f0b31f3ad4c3a5dae5e39a5b238f3ecf224 /arch/um/Kconfig.x86
parentf5ad6a42b700d9687bb97cf461e7f2506e3006d6 (diff)
downloadlinux-4198426af37e7122f2fda2538fa9dcaa19c5e397.tar.bz2
x86, um: merge Kconfig.i386 and Kconfig.x86_64
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/um/Kconfig.x86')
-rw-r--r--arch/um/Kconfig.x8646
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86
new file mode 100644
index 000000000000..76200c9f454a
--- /dev/null
+++ b/arch/um/Kconfig.x86
@@ -0,0 +1,46 @@
+menu "Host processor type and features"
+
+source "arch/x86/Kconfig.cpu"
+
+endmenu
+
+config UML_X86
+ def_bool y
+
+config 64BIT
+ bool
+ default SUBARCH = "x86_64"
+
+config X86_32
+ def_bool !64BIT
+ select HAVE_AOUT
+
+config RWSEM_XCHGADD_ALGORITHM
+ def_bool X86_XADD
+
+config RWSEM_GENERIC_SPINLOCK
+ def_bool !X86_XADD
+
+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