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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 00000000000..76200c9f454 --- /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 |