1xlcpupool.cfg(5) Xen xlcpupool.cfg(5)
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6 xlcpupool.cfg - XL Cpupool Configuration File Syntax
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9 /etc/xen/xlcpupool
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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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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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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 memeber 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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85 /etc/xen/CPUPOOL.cfg
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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.
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93 Patches to improve incomplete items (or any other item) would be
94 gratefully received on the xen-devel@lists.xen.org mailing list. Please
95 see <http://wiki.xen.org/wiki/SubmittingXenPatches> for information on
96 how to submit a patch to Xen.
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1004.11.1 2018-11-29 xlcpupool.cfg(5)