arch/x86/xen/Kconfig

   1 #
   2 # This Kconfig describes xen options
   3 #
   4
   5 config XEN
   6         bool "Xen guest support"
   7         select PARAVIRT
   8         select PARAVIRT_CLOCK
   9         depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS)
  10         depends on X86_CMPXCHG && X86_TSC
  11         help
  12           This is the Linux Xen port.  Enabling this will allow the
  13           kernel to boot in a paravirtualized environment under the
  14           Xen hypervisor.
  15
  16 config XEN_DOM0
  17         def_bool y
  18         depends on XEN && PCI_XEN && SWIOTLB_XEN
  19         depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
  20
  21 # Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
  22 # name in tools.
  23 config XEN_PRIVILEGED_GUEST
  24         def_bool XEN_DOM0
  25
  26 config XEN_PVHVM
  27         def_bool y
  28         depends on XEN
  29         depends on X86_LOCAL_APIC
  30
  31 config XEN_MAX_DOMAIN_MEMORY
  32        int
  33        default 128
  34        depends on XEN
  35        help
  36          This only affects the sizing of some bss arrays, the unused
  37          portions of which are freed.
  38
  39 config XEN_SAVE_RESTORE
  40        bool
  41        depends on XEN
  42        default y
  43
  44 config XEN_DEBUG_FS
  45         bool "Enable Xen debug and tuning parameters in debugfs"
  46         depends on XEN && DEBUG_FS
  47         default n
  48         help
  49           Enable statistics output and various tuning options in debugfs.
  50           Enabling this option may incur a significant performance overhead.
  51
  52 config XEN_DEBUG
  53         bool "Enable Xen debug checks"
  54         depends on XEN
  55         default n
  56         help
  57           Enable various WARN_ON checks in the Xen MMU code.
  58           Enabling this option WILL incur a significant performance overhead.