arch/x86/xen/Kconfig

   1 #
   2 # This Kconfig describes xen options
   3 #
   4
   5 config XEN
   6         bool "Xen guest support"
   7         depends on PARAVIRT
   8         select PARAVIRT_CLOCK
   9         select XEN_HAVE_PVMMU
  10         select XEN_HAVE_VPMU
  11         depends on X86_64 || (X86_32 && X86_PAE)
  12         depends on X86_LOCAL_APIC && X86_TSC
  13         help
  14           This is the Linux Xen port.  Enabling this will allow the
  15           kernel to boot in a paravirtualized environment under the
  16           Xen hypervisor.
  17
  18 config XEN_DOM0
  19         def_bool y
  20         depends on XEN && PCI_XEN && SWIOTLB_XEN
  21         depends on X86_IO_APIC && ACPI && PCI
  22
  23 config XEN_PVHVM
  24         def_bool y
  25         depends on XEN && PCI && X86_LOCAL_APIC
  26
  27 config XEN_512GB
  28         bool "Limit Xen pv-domain memory to 512GB"
  29         depends on XEN && X86_64
  30         default y
  31         help
  32           Limit paravirtualized user domains to 512GB of RAM.
  33
  34           The Xen tools and crash dump analysis tools might not support
  35           pv-domains with more than 512 GB of RAM. This option controls the
  36           default setting of the kernel to use only up to 512 GB or more.
  37           It is always possible to change the default via specifying the
  38           boot parameter "xen_512gb_limit".
  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
  54 config XEN_PVH
  55         bool "Support for running as a PVH guest"
  56         depends on XEN && XEN_PVHVM && ACPI
  57         def_bool n