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         select XEN_HAVE_PVMMU
  10         depends on X86_64 || (X86_32 && X86_PAE && !X86_VISWS)
  11         depends on X86_CMPXCHG && X86_TSC
  12         help
  13           This is the Linux Xen port.  Enabling this will allow the
  14           kernel to boot in a paravirtualized environment under the
  15           Xen hypervisor.
  16
  17 config XEN_DOM0
  18         def_bool y
  19         depends on XEN && PCI_XEN && SWIOTLB_XEN
  20         depends on X86_LOCAL_APIC && X86_IO_APIC && ACPI && PCI
  21
  22 # Dummy symbol since people have come to rely on the PRIVILEGED_GUEST
  23 # name in tools.
  24 config XEN_PRIVILEGED_GUEST
  25         def_bool XEN_DOM0
  26
  27 config XEN_PVHVM
  28         def_bool y
  29         depends on XEN && PCI && X86_LOCAL_APIC
  30
  31 config XEN_MAX_DOMAIN_MEMORY
  32        int
  33        default 500 if X86_64
  34        default 64 if X86_32
  35        depends on XEN
  36        help
  37          This only affects the sizing of some bss arrays, the unused
  38          portions of which are freed.
  39
  40 config XEN_SAVE_RESTORE
  41        bool
  42        depends on XEN
  43        select HIBERNATE_CALLBACKS
  44        default y
  45
  46 config XEN_DEBUG_FS
  47         bool "Enable Xen debug and tuning parameters in debugfs"
  48         depends on XEN && DEBUG_FS
  49         default n
  50         help
  51           Enable statistics output and various tuning options in debugfs.
  52           Enabling this option may incur a significant performance overhead.
  53