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174 lines
5.9 KiB
XML
174 lines
5.9 KiB
XML
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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright (c) 2016 OpenPOWER Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<appendix xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xl="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:lang="en"
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xml:id="dbdoclet.50569382_58396">
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<title>CMO Characteristics Definitions</title>
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<para>This appendix defines the string that is returned by the
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<emphasis>ibm,get-system-parameter</emphasis> RTAS call when the parameter
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token value of 44 (CMO Characteristics) is specified on the
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<emphasis>ibm,get-system-parameter</emphasis> RTAS call as per
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<xref linkend="dbdoclet.50569332_62190"/>.</para>
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<section>
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<title>CMO Terms</title>
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<para>The LoPAR Cooperative Memory Over-commitment option (CMO) defines
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terms as presented in
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<xref linkend="dbdoclet.50569382_93865" />.</para>
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<table frame="all" pgwide="1" xml:id="dbdoclet.50569382_93865">
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<title>CMO Terms</title>
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<tgroup cols="2">
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<colspec colname="c1" colwidth="50*" />
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<colspec colname="c2" colwidth="50*" />
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<tbody>
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<row>
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<entry>
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<para>Term</para>
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</entry>
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<entry>
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<para>Definition</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>CMO Page Size</para>
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</entry>
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<entry>
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<para>Page size as determined by the hypervisor. CMO page size is
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expressed as the power of 2 of the page size. For example, a 4K
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page size is represented by the value of 12 (4K = 2
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<emphasis>12</emphasis>).</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>Primary Paging Service Partition</para>
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</entry>
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<entry>
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<para>The primary paging service partition identifies the primary
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VIOS which provides access to paging services and devices for
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partitions participating in CMO. The primary paging service
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partition value is the partition number of the VIOS.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>Secondary Paging Service Partition</para>
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</entry>
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<entry>
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<para>The secondary paging service partition identifies the
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secondary VIOS in a redundant Paging Service Partition
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configuration. If the hypervisor detects a problem with the
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primary VIOS, it fails over to the secondary VIOS. The secondary
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paging service partition value is the partition number of the
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secondary VIOS.</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</section>
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<section>
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<title>Key Words And Values</title>
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<para>
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<xref linkend="dbdoclet.50569382_70763" />defines the key words and the
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associated legal values that will be returned in the ASCII NULL terminated
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string when the parameter token value of 44 (CMO characteristics) is
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specified on the
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<emphasis>ibm,get-system-parameter</emphasis> RTAS call. The key word and
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value is separated by an ASCII equal (“=”). Each key word,
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value pair is delimited by an ASCII comma in the string. The numerical
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value of the characteristic corresponding to the key word is the decimal
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number that corresponds to the numeric characters in the value part of the
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key word, value pair.</para>
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<table frame="all" pgwide="1" xml:id="dbdoclet.50569382_70763">
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<title>CMO Characteristics</title>
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<tgroup cols="4">
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<colspec colname="c1" colwidth="25*" />
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<colspec colname="c2" colwidth="25*" />
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<colspec colname="c3" colwidth="25*" />
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<colspec colname="c4" colwidth="25*" />
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<tbody>
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<row>
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<entry>
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<para>Characteristics</para>
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</entry>
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<entry>
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<para>Key Word</para>
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</entry>
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<entry>
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<para>Values</para>
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</entry>
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<entry>
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<para>Notes</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>CMO Page Size</para>
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</entry>
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<entry>
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<para>CMOPageSize</para>
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</entry>
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<entry>
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<para>1 - 64</para>
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</entry>
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<entry>
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<para> </para>
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</entry>
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</row>
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<row>
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<entry>
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<para>Primary Paging Service Partition</para>
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</entry>
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<entry>
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<para>PrPSP</para>
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</entry>
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<entry>
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<para>-1 through N</para>
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</entry>
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<entry morerows="1">
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<para>Set to -1 when the partition is not in CMO mode (i.e. is a
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dedicated memory partition)</para>
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</entry>
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</row>
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<row>
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<entry>
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<para>Secondary Paging Service Partition</para>
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</entry>
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<entry>
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<para>SecPSP</para>
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</entry>
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<entry>
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<para>-1 through N</para>
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</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</section>
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</appendix>
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