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system_option.xml.in
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<?xml version="1.0"?>
<interfaceDefinition>
<node name="system">
<children>
<node name="option" owner="${vyos_conf_scripts_dir}/system_option.py">
<properties>
<help>System Options</help>
<priority>9999</priority>
</properties>
<children>
<leafNode name="ctrl-alt-delete">
<properties>
<help>System action on Ctrl-Alt-Delete keystroke</help>
<completionHelp>
<list>ignore reboot poweroff</list>
</completionHelp>
<valueHelp>
<format>ignore</format>
<description>Ignore key sequence</description>
</valueHelp>
<valueHelp>
<format>reboot</format>
<description>Reboot system</description>
</valueHelp>
<valueHelp>
<format>poweroff</format>
<description>Poweroff system</description>
</valueHelp>
<constraint>
<regex>(ignore|reboot|poweroff)</regex>
</constraint>
<constraintErrorMessage>Must be ignore, reboot, or poweroff</constraintErrorMessage>
</properties>
</leafNode>
<node name="resource-limits">
<properties>
<help>Resource limits</help>
</properties>
<children>
<leafNode name="max-map-count">
<properties>
<help>Maximum number of memory map areas a process may have</help>
<valueHelp>
<format>u32:65530-2147483647</format>
<description>Areas count</description>
</valueHelp>
<valueHelp>
<format>auto</format>
<description>Auto calculate areas count based on number of hugepages</description>
</valueHelp>
<constraint>
<regex>(auto)</regex>
<validator name="numeric" argument="--range 65530-2147483647"/>
</constraint>
</properties>
<defaultValue>auto</defaultValue>
</leafNode>
<leafNode name="shmmax">
<properties>
<help>Maximum shared memory segment size that can be created</help>
<valueHelp>
<format>u64:8589934592-18446744073709551615</format>
<description>Size in bytes</description>
</valueHelp>
<valueHelp>
<format>auto</format>
<description>Auto calculate shared memory based on number of hugepages</description>
</valueHelp>
<constraint>
<regex>(auto)</regex>
<validator name="numeric" argument="--range 8589934592-18446744073709551615"/>
</constraint>
</properties>
<defaultValue>auto</defaultValue>
</leafNode>
</children>
</node>
<node name="kernel">
<properties>
<help>Kernel boot parameters</help>
</properties>
<children>
<node name="cpu">
<properties>
<help>CPU settings</help>
</properties>
<children>
<leafNode name="disable-nmi-watchdog">
<properties>
<help>Disable the NMI watchdog for detecting hard CPU lockups</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="isolate-cpus">
<properties>
<help>Isolate specified CPUs from the scheduler</help>
<valueHelp>
<format>u32:0-511</format>
<description>CPU core</description>
</valueHelp>
<valueHelp>
<format><start-end></format>
<description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description>
</valueHelp>
<constraint>
<validator name="cpu"/>
</constraint>
</properties>
</leafNode>
<leafNode name="nohz-full">
<properties>
<help>Enable full tickless mode for specified CPUs</help>
<valueHelp>
<format>u32:0-511</format>
<description>CPU core</description>
</valueHelp>
<valueHelp>
<format><start-end></format>
<description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description>
</valueHelp>
<constraint>
<validator name="cpu"/>
</constraint>
</properties>
</leafNode>
<leafNode name="rcu-no-cbs">
<properties>
<help>Offload Read-Copy-Update (RCU) callback processing to specified CPUs</help>
<valueHelp>
<format>u32:0-511</format>
<description>CPU core</description>
</valueHelp>
<valueHelp>
<format><start-end></format>
<description>CPU core range (examples: "1", "4-7", "1,2-5,7")</description>
</valueHelp>
<constraint>
<validator name="cpu"/>
</constraint>
</properties>
</leafNode>
</children>
</node>
<node name="memory">
<properties>
<help>Memory settings</help>
</properties>
<children>
<leafNode name="disable-numa-balancing">
<properties>
<help>Disable automatic NUMA memory balancing</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="default-hugepage-size">
<properties>
<help>Set default hugepage size (e.g., 2M, 1G)</help>
<completionHelp>
<list>2M 1G</list>
</completionHelp>
<valueHelp>
<format>2M</format>
<description>2 megabytes</description>
</valueHelp>
<valueHelp>
<format>1G</format>
<description>1 gigabyte</description>
</valueHelp>
<constraint>
<regex>(2M|1G)</regex>
</constraint>
</properties>
</leafNode>
<tagNode name="hugepage-size">
<properties>
<help>Set hugepage size for allocation (e.g., 2M, 1G)</help>
<completionHelp>
<list>2M 1G</list>
</completionHelp>
<valueHelp>
<format>2M</format>
<description>2 megabytes</description>
</valueHelp>
<valueHelp>
<format>1G</format>
<description>1 gigabyte</description>
</valueHelp>
<constraint>
<regex>(2M|1G)</regex>
</constraint>
</properties>
<children>
<leafNode name="hugepage-count">
<properties>
<help>Allocate number of hugepages for system use</help>
<valueHelp>
<format>u32</format>
<description>Number of hugepages</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 1-100000"/>
</constraint>
</properties>
</leafNode>
</children>
</tagNode>
</children>
</node>
<leafNode name="disable-hpet">
<properties>
<help>Disable High Precision Event Timer (HPET)</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="disable-mce">
<properties>
<help>Disable Machine Check Exceptions (MCE) reporting and handling</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="disable-mitigations">
<properties>
<help>Disable all optional CPU mitigations</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="disable-power-saving">
<properties>
<help>Disable CPU power saving mechanisms also known as C states</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="amd-pstate-driver">
<properties>
<help>Enables and configures pstate driver for AMD Ryzen and Epyc CPUs</help>
<completionHelp>
<list>active passive guided</list>
</completionHelp>
<valueHelp>
<format>active</format>
<description>The firmware controls performance states and the system governor has no effect</description>
</valueHelp>
<valueHelp>
<format>passive</format>
<description>Allow the system governor to manage performance states</description>
</valueHelp>
<valueHelp>
<format>guided</format>
<description>The firmware controls performance states guided by the system governor</description>
</valueHelp>
</properties>
</leafNode>
<leafNode name="disable-softlockup">
<properties>
<help>Disable soft lockup detector for kernel threads</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="quiet">
<properties>
<help>Disable most log messages</help>
<valueless/>
</properties>
</leafNode>
<node name="debug">
<properties>
<help>Dynamic debugging for kernel module</help>
</properties>
<children>
<leafNode name="wireguard">
<properties>
<help>Dynamic debugging for Wireguard module</help>
<valueless/>
</properties>
</leafNode>
</children>
</node>
</children>
</node>
<leafNode name="keyboard-layout">
<properties>
<help>System keyboard layout, type ISO2</help>
<completionHelp>
<list>us uk fr de es fi it jp106 no dk se-latin1 dvorak</list>
</completionHelp>
<valueHelp>
<format>us</format>
<description>United States</description>
</valueHelp>
<valueHelp>
<format>uk</format>
<description>United Kingdom</description>
</valueHelp>
<valueHelp>
<format>fr</format>
<description>France</description>
</valueHelp>
<valueHelp>
<format>de</format>
<description>Germany</description>
</valueHelp>
<valueHelp>
<format>es</format>
<description>Spain</description>
</valueHelp>
<valueHelp>
<format>fi</format>
<description>Finland</description>
</valueHelp>
<valueHelp>
<format>it</format>
<description>Italy</description>
</valueHelp>
<valueHelp>
<format>jp106</format>
<description>Japan</description>
</valueHelp>
<valueHelp>
<format>no</format>
<description>Norway</description>
</valueHelp>
<valueHelp>
<format>dk</format>
<description>Denmark</description>
</valueHelp>
<valueHelp>
<format>se-latin1</format>
<description>Sweden</description>
</valueHelp>
<valueHelp>
<format>dvorak</format>
<description>Dvorak</description>
</valueHelp>
<constraint>
<regex>(us|uk|fr|de|es|fi|it|jp106|no|dk|se-latin1|dvorak)</regex>
</constraint>
<constraintErrorMessage>Invalid keyboard layout</constraintErrorMessage>
</properties>
<defaultValue>us</defaultValue>
</leafNode>
<leafNode name="performance">
<properties>
<help>Tune system performance</help>
<completionHelp>
<list>network-throughput network-latency power-save virtual-host virtual-guest</list>
</completionHelp>
<valueHelp>
<format>network-throughput</format>
<description>Tune for maximum network throughput</description>
</valueHelp>
<valueHelp>
<format>network-latency</format>
<description>Tune for low network latency</description>
</valueHelp>
<valueHelp>
<format>power-save</format>
<description>Tune for low power consumption</description>
</valueHelp>
<valueHelp>
<format>virtual-guest</format>
<description>Tune for running inside a virtual machine</description>
</valueHelp>
<valueHelp>
<format>virtual-host</format>
<description>Tune for running guest virtual machines</description>
</valueHelp>
<constraint>
<regex>(network-throughput|network-latency|power-save|virtual-guest|virtual-host)</regex>
</constraint>
<multi/>
</properties>
</leafNode>
<node name="http-client">
<properties>
<help>Global options used for HTTP client</help>
</properties>
<children>
#include <include/source-interface.xml.i>
#include <include/source-address-ipv4-ipv6.xml.i>
</children>
</node>
<leafNode name="reboot-on-panic">
<properties>
<help>Reboot system on kernel panic</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="reboot-on-upgrade-failure">
<properties>
<help>Automatic reboot into previous running image on upgrade failure</help>
<valueHelp>
<format>u32:1-30</format>
<description>Timeout before automatic reboot (minutes)</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 5-30"/>
</constraint>
<constraintErrorMessage>Timeout out of range, must be 5 to 30 minutes</constraintErrorMessage>
</properties>
</leafNode>
<node name="ssh-client">
<properties>
<help>Global options used for SSH client</help>
</properties>
<children>
#include <include/source-address-ipv4-ipv6.xml.i>
#include <include/source-interface.xml.i>
</children>
</node>
<leafNode name="startup-beep">
<properties>
<help>plays sound via system speaker when you can login</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="root-partition-auto-resize">
<properties>
<help>Enable root partition auto-extention on system boot</help>
<valueless/>
</properties>
</leafNode>
<leafNode name="time-format">
<properties>
<help>System time-format</help>
<completionHelp>
<list>12-hour 24-hour</list>
</completionHelp>
<valueHelp>
<format>12-hour</format>
<description>12 hour time format</description>
</valueHelp>
<valueHelp>
<format>24-hour</format>
<description>24 hour time format</description>
</valueHelp>
<constraint>
<regex>(12-hour|24-hour)</regex>
</constraint>
</properties>
<defaultValue>12-hour</defaultValue>
</leafNode>
<leafNode name="disable-usb-autosuspend">
<properties>
<help>Disable autosuspend for all USB devices</help>
<valueless/>
</properties>
</leafNode>
</children>
</node>
</children>
</node>
</interfaceDefinition>
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