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