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Ian Campbell
833ea62ccb
The advice was backwards, you should really disable autoballoon if you use dom0_mem. Also add a reference to the command-line docs. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
114 lines
2.4 KiB
Plaintext
114 lines
2.4 KiB
Plaintext
=head1 NAME
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/etc/xen/xl.conf - XL Global/Host Configuration
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=head1 DESCRIPTION
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The F<xl.conf> file allows configuration of hostwide C<xl> toolstack
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options.
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For details of per-domain configuration options please see
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L<xl.cfg(5)>.
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=head1 SYNTAX
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The config file consists of a series of C<KEY=VALUE> pairs.
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A value C<VALUE> is one of:
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=over 4
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=item B<"STRING">
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A string, surrounded by either single or double quotes.
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=item B<NUMBER>
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A number, in either decimal, octal (using a C<0> prefix) or
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hexadecimal (using an C<0x> prefix).
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=item B<BOOLEAN>
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A C<NUMBER> interpreted as C<False> (C<0>) or C<True> (any other
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value).
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=item B<[ VALUE, VALUE, ... ]>
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A list of C<VALUES> of the above types. Lists are homogeneous and are
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not nested.
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=back
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The semantics of each C<KEY> defines which form of C<VALUE> is required.
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=head1 OPTIONS
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=over 4
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=item B<autoballoon=BOOLEAN>
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If disabled then C<xl> will not attempt to reduce the amount of memory
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assigned to domain 0 in order to create free memory when starting a
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new domain. You are strongly recommended to set this to C<0>
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(C<False>) if you use the C<dom0_mem> hypervisor command line to
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reduce the amount of memory given to domain 0 by default.
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Default: C<1>
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=item B<run_hotplug_scripts=BOOLEAN>
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If disabled hotplug scripts will be called from udev, as it used to
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be in the previous releases. With the default option, hotplug scripts
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will be launched by xl directly.
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Default: C<1>
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=item B<lockfile="PATH">
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Sets the path to the lock file used by xl to serialise certain
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operations (primarily domain creation).
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Default: C</var/lock/xl>
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=item B<vifscript="PATH">
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Configures the default hotplug script used by virtual network devices.
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Default: C</etc/xen/scripts/vif-bridge>
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=item B<defaultbridge="NAME">
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Configures the default bridge to set for virtual network devices.
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Default: C<xenbr0>
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=item B<output_format="json|sxp">
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Configures the default output format used by xl when printing "machine
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readable" information. The default is to use the C<JSON>
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L<http://www.json.org/> syntax. However for compatibility with the
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previous C<xm> toolstack this can be configured to use the old C<SXP>
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(S-Expression-like) syntax instead.
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Default: C<json>
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=item B<blkdev_start="NAME">
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Configures the name of the first block device to be used for temporary
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block device allocations by the toolstack.
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The default choice is "xvda".
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=back
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=head1 SEE ALSO
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=over 4
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=item L<xl(1)>
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=item L<xl.cfg(5)>
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=item http://www.json.org/
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=back
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