Documentation/ABI/stable/sysfs-devices-system-xen_memory

   1 What:           /sys/devices/system/xen_memory/xen_memory0/max_retry_count
   2 Date:           May 2011
   3 KernelVersion:  2.6.39
   4 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
   5 Description:
   6                 The maximum number of times the balloon driver will
   7                 attempt to increase the balloon before giving up.  See
   8                 also 'retry_count' below.
   9                 A value of zero means retry forever and is the default one.
  10
  11 What:           /sys/devices/system/xen_memory/xen_memory0/max_schedule_delay
  12 Date:           May 2011
  13 KernelVersion:  2.6.39
  14 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  15 Description:
  16                 The limit that 'schedule_delay' (see below) will be
  17                 increased to. The default value is 32 seconds.
  18
  19 What:           /sys/devices/system/xen_memory/xen_memory0/retry_count
  20 Date:           May 2011
  21 KernelVersion:  2.6.39
  22 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  23 Description:
  24                 The current number of times that the balloon driver
  25                 has attempted to increase the size of the balloon.
  26                 The default value is one. With max_retry_count being
  27                 zero (unlimited), this means that the driver will attempt
  28                 to retry with a 'schedule_delay' delay.
  29
  30 What:           /sys/devices/system/xen_memory/xen_memory0/schedule_delay
  31 Date:           May 2011
  32 KernelVersion:  2.6.39
  33 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  34 Description:
  35                 The time (in seconds) to wait between attempts to
  36                 increase the balloon.  Each time the balloon cannot be
  37                 increased, 'schedule_delay' is increased (until
  38                 'max_schedule_delay' is reached at which point it
  39                 will use the max value).
  40
  41 What:           /sys/devices/system/xen_memory/xen_memory0/target
  42 Date:           April 2008
  43 KernelVersion:  2.6.26
  44 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  45 Description:
  46                 The target number of pages to adjust this domain's
  47                 memory reservation to.
  48
  49 What:           /sys/devices/system/xen_memory/xen_memory0/target_kb
  50 Date:           April 2008
  51 KernelVersion:  2.6.26
  52 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  53 Description:
  54                 As target above, except the value is in KiB.
  55
  56 What:           /sys/devices/system/xen_memory/xen_memory0/info/current_kb
  57 Date:           April 2008
  58 KernelVersion:  2.6.26
  59 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  60 Description:
  61                 Current size (in KiB) of this domain's memory
  62                 reservation.
  63
  64 What:           /sys/devices/system/xen_memory/xen_memory0/info/high_kb
  65 Date:           April 2008
  66 KernelVersion:  2.6.26
  67 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  68 Description:
  69                 Amount (in KiB) of high memory in the balloon.
  70
  71 What:           /sys/devices/system/xen_memory/xen_memory0/info/low_kb
  72 Date:           April 2008
  73 KernelVersion:  2.6.26
  74 Contact:        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
  75 Description:
  76                 Amount (in KiB) of low (or normal) memory in the
  77                 balloon.
  78
  79 What:           /sys/devices/system/xen_memory/xen_memory0/scrub_pages
  80 Date:           September 2018
  81 KernelVersion:  4.20
  82 Contact:        xen-devel@lists.xenproject.org
  83 Description:
  84                 Control scrubbing pages before returning them to Xen for others domains
  85                 use. Can be set with xen_scrub_pages cmdline
  86                 parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.