Kconfig.x86 1.0 KB

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