drivers/xen/Kconfig

   1 config XEN_BALLOON
   2         bool "Xen memory balloon driver"
   3         depends on XEN
   4         default y
   5         help
   6           The balloon driver allows the Xen domain to request more memory from
   7           the system to expand the domain's memory allocation, or alternatively
   8           return unneeded memory to the system.
   9
  10 config XEN_SCRUB_PAGES
  11         bool "Scrub pages before returning them to system"
  12         depends on XEN_BALLOON
  13         default y
  14         help
  15           Scrub pages before returning them to the system for reuse by
  16           other domains.  This makes sure that any confidential data
  17           is not accidentally visible to other domains.  Is it more
  18           secure, but slightly less efficient.
  19           If in doubt, say yes.
  20
  21 config XEN_DEV_EVTCHN
  22         tristate "Xen /dev/xen/evtchn device"
  23         depends on XEN
  24         default y
  25         help
  26           The evtchn driver allows a userspace process to triger event
  27           channels and to receive notification of an event channel
  28           firing.
  29           If in doubt, say yes.
  30
  31 config XENFS
  32         tristate "Xen filesystem"
  33         depends on XEN
  34         default y
  35         help
  36           The xen filesystem provides a way for domains to share
  37           information with each other and with the hypervisor.
  38           For example, by reading and writing the "xenbus" file, guests
  39           may pass arbitrary information to the initial domain.
  40           If in doubt, say yes.
  41
  42 config XEN_COMPAT_XENFS
  43        bool "Create compatibility mount point /proc/xen"
  44        depends on XENFS
  45        default y
  46        help
  47          The old xenstore userspace tools expect to find "xenbus"
  48          under /proc/xen, but "xenbus" is now found at the root of the
  49          xenfs filesystem.  Selecting this causes the kernel to create
  50          the compatibility mount point /proc/xen if it is running on
  51          a xen platform.
  52          If in doubt, say yes.
  53
  54 config XEN_SYS_HYPERVISOR
  55        bool "Create xen entries under /sys/hypervisor"
  56        depends on XEN && SYSFS
  57        select SYS_HYPERVISOR
  58        default y
  59        help
  60          Create entries under /sys/hypervisor describing the Xen
  61          hypervisor environment.  When running native or in another
  62          virtual environment, /sys/hypervisor will still be present,
  63          but will have no xen contents.