1xlcpupool.cfg(5)                      Xen                     xlcpupool.cfg(5)
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NAME

6       xlcpupool.cfg - XL Cpupool Configuration File Syntax
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SYNOPSIS

9        /etc/xen/xlcpupool
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DESCRIPTION

12       To create a Cpupool with xl requires the provision of a cpupool config
13       file.  Typically these live in `/etc/xen/CPUPOOL.cfg` where CPUPOOL is
14       the name of the cpupool.
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SYNTAX

17       A cpupool config file consists of a series of "KEY=VALUE" pairs.
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19       A value "VALUE" is one of:
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21       "STRING"
22           A string, surrounded by either single or double quotes.
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24       NUMBER
25           A number, in either decimal, octal (using a 0 prefix) or
26           hexadecimal (using an "0x" prefix).
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28       [ VALUE, VALUE, ... ]
29           A list of "VALUES" of the above types. Lists are homogeneous and
30           are not nested.
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32       The semantics of each "KEY" defines which form of "VALUE" is required.
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OPTIONS

35   Mandatory Configuration Items
36       The following key is mandatory for any cpupool:
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38       name="NAME"
39           Specifies the name of the cpupool.  Names of cpupools existing on a
40           single host must be unique.
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42   Optional Configuration Items
43       The following options apply to guests of any type.
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45       sched="SCHED"
46           Specifies the scheduler which is used for the cpupool. Valid values
47           for "SCHED" are:
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49           credit
50               the credit scheduler
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52           credit2
53               the credit2 scheduler
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55           rtds
56               the RTDS scheduler
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58           The default scheduler is the one used for "Pool-0" specified as
59           boot parameter of the hypervisor.
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61       nodes="NODES"
62           Specifies the cpus of the NUMA-nodes given in "NODES" (an integer
63           or a list of integers) to be member of the cpupool. The free cpus
64           in the specified nodes are allocated in the new cpupool.
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66       cpus="CPU-LIST"
67           Specifies the cpus that will be member of the cpupool. All the
68           specified cpus must be free, or creation will fail. "CPU-LIST" may
69           be specified as follows:
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71           ["2", "3", "5"]
72               means that cpus 2,3,5 will be member of the cpupool.
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74           "0-3,5,^1"
75               means that cpus 0,2,3 and 5 will be member of the cpupool. A
76               "node:" or "nodes:" modifier can be used. E.g.,
77               "0,node:1,nodes:2-3,^10-13" means that pcpus 0, plus all the
78               cpus of NUMA nodes 1,2,3 with the exception of cpus 10,11,12,13
79               will be members of the cpupool.
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81           If neither nodes nor cpus are specified only the first free cpu
82           found will be allocated in the new cpupool.
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FILES

85       /etc/xen/CPUPOOL.cfg
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BUGS

88       This document is a work in progress and contains items which require
89       further documentation and which are generally incomplete (marked with
90       XXX).  However all options are included here whether or not they are
91       fully documented.
92
93       Patches to improve incomplete items (or any other item) would be
94       gratefully received on the xen-devel@lists.xenproject.org mailing list.
95       Please see
96       <https://wiki.xenproject.org/wiki/Submitting_Xen_Project_Patches> for
97       information on how to submit a patch to Xen.
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1014.15.1                            2021-11-23                  xlcpupool.cfg(5)
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