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. 87