Kconfig 1.2 KB

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  1. mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
  2. source "arch/um/Kconfig.common"
  3. menu "UML-specific options"
  4. menu "Host processor type and features"
  5. source "arch/x86/Kconfig.cpu"
  6. endmenu
  7. config UML_X86
  8. def_bool y
  9. select GENERIC_FIND_FIRST_BIT
  10. config 64BIT
  11. bool "64-bit kernel" if SUBARCH = "x86"
  12. default SUBARCH != "i386"
  13. config X86_32
  14. def_bool !64BIT
  15. select HAVE_AOUT
  16. select ARCH_WANT_IPC_PARSE_VERSION
  17. config X86_64
  18. def_bool 64BIT
  19. config RWSEM_XCHGADD_ALGORITHM
  20. def_bool X86_XADD && 64BIT
  21. config RWSEM_GENERIC_SPINLOCK
  22. def_bool !RWSEM_XCHGADD_ALGORITHM
  23. config 3_LEVEL_PGTABLES
  24. bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
  25. default 64BIT
  26. depends on EXPERIMENTAL
  27. help
  28. Three-level pagetables will let UML have more than 4G of physical
  29. memory. All the memory that can't be mapped directly will be treated
  30. as high memory.
  31. However, this it experimental on 32-bit architectures, so if unsure say
  32. N (on x86-64 it's automatically enabled, instead, as it's safe there).
  33. config ARCH_HAS_SC_SIGNALS
  34. def_bool !64BIT
  35. config ARCH_REUSE_HOST_VSYSCALL_AREA
  36. def_bool !64BIT
  37. config GENERIC_HWEIGHT
  38. def_bool y
  39. source "arch/um/Kconfig.um"
  40. endmenu
  41. source "arch/um/Kconfig.rest"