Kconfig.x86 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. config CMPXCHG_LOCAL
  6. bool
  7. default n
  8. source "arch/x86/Kconfig.cpu"
  9. endmenu
  10. config UML_X86
  11. def_bool y
  12. select GENERIC_FIND_FIRST_BIT
  13. config 64BIT
  14. bool
  15. default SUBARCH = "x86_64"
  16. config X86_32
  17. def_bool !64BIT
  18. select HAVE_AOUT
  19. config X86_64
  20. def_bool 64BIT
  21. config RWSEM_XCHGADD_ALGORITHM
  22. def_bool X86_XADD && 64BIT
  23. config RWSEM_GENERIC_SPINLOCK
  24. def_bool !RWSEM_XCHGADD_ALGORITHM
  25. config 3_LEVEL_PGTABLES
  26. bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT
  27. default 64BIT
  28. depends on EXPERIMENTAL
  29. help
  30. Three-level pagetables will let UML have more than 4G of physical
  31. memory. All the memory that can't be mapped directly will be treated
  32. as high memory.
  33. However, this it experimental on 32-bit architectures, so if unsure say
  34. N (on x86-64 it's automatically enabled, instead, as it's safe there).
  35. config ARCH_HAS_SC_SIGNALS
  36. def_bool !64BIT
  37. config ARCH_REUSE_HOST_VSYSCALL_AREA
  38. def_bool !64BIT
  39. config SMP_BROKEN
  40. def_bool 64BIT
  41. config GENERIC_HWEIGHT
  42. def_bool y
  43. source "arch/um/Kconfig.um"
  44. endmenu
  45. source "arch/um/Kconfig.rest"