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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-23 17:00:34 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-22 22:55:22 -0700 |
| commit | 4198426af37e7122f2fda2538fa9dcaa19c5e397 (patch) | |
| tree | 398a9f0b31f3ad4c3a5dae5e39a5b238f3ecf224 /arch/um/Kconfig.x86 | |
| parent | f5ad6a42b700d9687bb97cf461e7f2506e3006d6 (diff) | |
| download | linux-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.x86 | 46 |
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 |