0001 What: /sys/devices/system/xen_memory/xen_memory0/max_retry_count
0002 Date: May 2011
0003 KernelVersion: 2.6.39
0004 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0005 Description:
0006 The maximum number of times the balloon driver will
0007 attempt to increase the balloon before giving up. See
0008 also 'retry_count' below.
0009 A value of zero means retry forever and is the default one.
0010
0011 What: /sys/devices/system/xen_memory/xen_memory0/max_schedule_delay
0012 Date: May 2011
0013 KernelVersion: 2.6.39
0014 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0015 Description:
0016 The limit that 'schedule_delay' (see below) will be
0017 increased to. The default value is 32 seconds.
0018
0019 What: /sys/devices/system/xen_memory/xen_memory0/retry_count
0020 Date: May 2011
0021 KernelVersion: 2.6.39
0022 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0023 Description:
0024 The current number of times that the balloon driver
0025 has attempted to increase the size of the balloon.
0026 The default value is one. With max_retry_count being
0027 zero (unlimited), this means that the driver will attempt
0028 to retry with a 'schedule_delay' delay.
0029
0030 What: /sys/devices/system/xen_memory/xen_memory0/schedule_delay
0031 Date: May 2011
0032 KernelVersion: 2.6.39
0033 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0034 Description:
0035 The time (in seconds) to wait between attempts to
0036 increase the balloon. Each time the balloon cannot be
0037 increased, 'schedule_delay' is increased (until
0038 'max_schedule_delay' is reached at which point it
0039 will use the max value).
0040
0041 What: /sys/devices/system/xen_memory/xen_memory0/target
0042 Date: April 2008
0043 KernelVersion: 2.6.26
0044 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0045 Description:
0046 The target number of pages to adjust this domain's
0047 memory reservation to.
0048
0049 What: /sys/devices/system/xen_memory/xen_memory0/target_kb
0050 Date: April 2008
0051 KernelVersion: 2.6.26
0052 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0053 Description:
0054 As target above, except the value is in KiB.
0055
0056 What: /sys/devices/system/xen_memory/xen_memory0/info/current_kb
0057 Date: April 2008
0058 KernelVersion: 2.6.26
0059 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0060 Description:
0061 Current size (in KiB) of this domain's memory
0062 reservation.
0063
0064 What: /sys/devices/system/xen_memory/xen_memory0/info/high_kb
0065 Date: April 2008
0066 KernelVersion: 2.6.26
0067 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0068 Description:
0069 Amount (in KiB) of high memory in the balloon.
0070
0071 What: /sys/devices/system/xen_memory/xen_memory0/info/low_kb
0072 Date: April 2008
0073 KernelVersion: 2.6.26
0074 Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
0075 Description:
0076 Amount (in KiB) of low (or normal) memory in the
0077 balloon.
0078
0079 What: /sys/devices/system/xen_memory/xen_memory0/scrub_pages
0080 Date: September 2018
0081 KernelVersion: 4.20
0082 Contact: xen-devel@lists.xenproject.org
0083 Description:
0084 Control scrubbing pages before returning them to Xen for others domains
0085 use. Can be set with xen_scrub_pages cmdline
0086 parameter. Default value controlled with CONFIG_XEN_SCRUB_PAGES_DEFAULT.
