101 lines
3.4 KiB
Diff
101 lines
3.4 KiB
Diff
From 0f126297ca984aa2ef145e2a703fff3dc31c53db Mon Sep 17 00:00:00 2001
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Message-Id: <0f126297ca984aa2ef145e2a703fff3dc31c53db@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Wed, 19 Feb 2020 15:10:19 +0100
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Subject: [PATCH] docs: Document the new <slices> sub-element of disk's
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<source>
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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We are going to add support for specifying offset and size attributes
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which will allow controling where the image and where the guest data
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itself starts in the source of the disk. This will be represented by
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a <slices> element filled with either a <slice type='storage'> for the
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offset of the image format data.
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Add the XML documentation and RNG schema.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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(cherry picked from commit 44f0f76890c6b53a893ffc370836794d74317c34)
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https://bugzilla.redhat.com/show_bug.cgi?id=1791788
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Message-Id: <9f5488f2e0e5b6d7df386fa428f7779346cbcff4.1582120424.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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docs/formatdomain.html.in | 13 +++++++++++++
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docs/schemas/domaincommon.rng | 19 +++++++++++++++++++
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2 files changed, 32 insertions(+)
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diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
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index ec48ed77a5..5dbb8b59cf 100644
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--- a/docs/formatdomain.html.in
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+++ b/docs/formatdomain.html.in
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@@ -2878,6 +2878,9 @@
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<disk type='block' device='lun'>
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<driver name='qemu' type='raw'/>
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<source dev='/dev/sda'>
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+ <slices>
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+ <slice type='storage' offset='12345' size='123'/>
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+ </slices>
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<reservations managed='no'>
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<source type='unix' path='/path/to/qemu-pr-helper' mode='client'/>
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</reservations>
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@@ -3360,6 +3363,16 @@
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controller.
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<span class="since">Since 6.0.0</span>
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</dd>
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+ <dt><code>slices</code></dt>
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+ <dd>The <code>slices</code> element using its <code>slice</code>
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+ sub-elements allows configuring offset and size of either the
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+ location of the image format (<code>slice type='storage'</code>)
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+ inside the storage source or the guest data inside the image format
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+ container (future expansion).
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+
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+ The <code>offset</code> and <code>size</code> values are in bytes.
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+ <span class="since">Since 6.1.0</span>
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+ </dd>
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</dl>
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<p>
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diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
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index 19476a2735..38aef19e89 100644
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--- a/docs/schemas/domaincommon.rng
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+++ b/docs/schemas/domaincommon.rng
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@@ -1596,12 +1596,31 @@
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</optional>
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</define>
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+ <define name="diskSourceSlice">
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+ <attribute name='offset'>
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+ <ref name="positiveInteger"/>
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+ </attribute>
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+ <attribute name='size'>
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+ <ref name="positiveInteger"/>
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+ </attribute>
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+ </define>
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+
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<define name="diskSourceCommon">
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<optional>
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<attribute name="index">
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<ref name="positiveInteger"/>
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</attribute>
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</optional>
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+ <optional>
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+ <element name='slices'>
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+ <element name='slice'>
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+ <attribute name='type'>
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+ <value>storage</value>
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+ </attribute>
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+ <ref name="diskSourceSlice"/>
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+ </element>
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+ </element>
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+ </optional>
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</define>
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<define name="diskSource">
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--
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2.25.0
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