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Added <features> tag to XML for enable CPU/system features like PAE, ACPI

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Daniel P. Berrange 2006-08-15 17:01:42 +00:00
parent 86a22bd660
commit 075337182c
5 changed files with 68 additions and 3 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
Tue Aug 15 11:55:15 EDT 2006 Daniel Berrange <berrange@redhat.com>
* src/xml.c, src/xend_internal.c: Added a <features> block
to XML allowing enablement of guest CPU / system features.
Currently support PAE, ACPI, APIC for HVM domains.
* docs/libvir.html: Documented new <features> block and those
features enabled for HVM guests
Mon Aug 14 10:55:02 EDT 2006 Daniel Berrange <berrange@redhat.com>
* docs/libvir.html, docs/format.html: Updated description of

15
docs/format.html
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@ -99,13 +99,18 @@ systems:</p><pre>&lt;domain type='xen' id='3'&gt;
&lt;os&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;type&gt;hvm&lt;/type&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;loader&gt;/usr/lib/xen/boot/hvmloader&lt;/loader&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;boot dev='da'/&gt;</span>
<span style="color: #0000E5; background-color: #FFFFFF">&lt;boot dev='hd'/&gt;</span>
&lt;/os&gt;
&lt;memory&gt;524288&lt;/memory&gt;
&lt;vcpu&gt;1&lt;/vcpu&gt;
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;</span>
&lt;/features&gt;
&lt;devices&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;</span>
&lt;interface type='bridge'&gt;
@ -128,7 +133,13 @@ systems:</p><pre>&lt;domain type='xen' id='3'&gt;
&lt;/disk&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;graphics type='vnc' port='5904'/&gt;</span>
&lt;/devices&gt;
&lt;/domain&gt;</pre><p>There is a few things to notice specifically for HVM domains:</p><ul><li>the <code>&lt;os&gt;</code> block description is very different, first it indicates
&lt;/domain&gt;</pre><p>There is a few things to notice specifically for HVM domains:</p><ul><li>the optional <code>&lt;features&gt;</code> block is used to enable certain
guest CPU / system features. For HVM guests the following features are defined:
<ul><li><code>pae</code> - enable PAE memory addressing</li>
<li><code>apic</code> - enable IO APIC</li>
<li><code>acpi</code> - enable ACPI bios</li>
</ul></li>
<li>the <code>&lt;os&gt;</code> block description is very different, first it indicates
that the type is 'hvm' for hardware virtualization, then instead of a
kernel, boot and command line arguments, it points to an os boot loader
which will extract the boot informations from the boot device specified

13
docs/libvir.html
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@ -430,6 +430,11 @@ systems:</p>
&lt;on_poweroff&gt;destroy&lt;/on_poweroff&gt;
&lt;on_reboot&gt;restart&lt;/on_reboot&gt;
&lt;on_crash&gt;restart&lt;/on_crash&gt;
&lt;features&gt;
<span style="color: #E50000; background-color: #FFFFFF">&lt;pae/&gt;
&lt;acpi/&gt;
&lt;apic/&gt;</span>
&lt;/features&gt;
&lt;devices&gt;
<span style="color: #0000E5; background-color: #FFFFFF">&lt;emulator&gt;/usr/lib/xen/bin/qemu-dm&lt;/emulator&gt;</span>
&lt;interface type='bridge'&gt;
@ -456,6 +461,14 @@ systems:</p>
<p>There is a few things to notice specifically for HVM domains:</p>
<ul>
<li>the optional <code>&lt;features&gt;</code> block is used to enable certain
guest CPU / system features. For HVM guests the following features are defined:
<ul>
<li><code>pae</code> - enable PAE memory addressing</li>
<li><code>apic</code> - enable IO APIC</li>
<li><code>acpi</code> - enable ACPI bios</li>
</ul>
</li>
<li>the <code>&lt;os&gt;</code> block description is very different, first it indicates
that the type is 'hvm' for hardware virtualization, then instead of a
kernel, boot and command line arguments, it points to an os boot loader

11
src/xend_internal.c
View File

@ -1547,6 +1547,17 @@ xend_parse_sexp_desc(virConnectPtr conn, struct sexpr *root)
if (tmp != NULL)
virBufferVSprintf(&buf, " <on_crash>%s</on_crash>\n", tmp);
if (hvm) {
virBufferAdd(&buf, " <features>\n", 13);
if (sexpr_int(root, "domain/image/hvm/acpi"))
virBufferAdd(&buf, " <acpi/>\n", 12);
if (sexpr_int(root, "domain/image/hvm/apic"))
virBufferAdd(&buf, " <apic/>\n", 12);
if (sexpr_int(root, "domain/image/hvm/pae"))
virBufferAdd(&buf, " <pae/>\n", 11);
virBufferAdd(&buf, " </features>\n", 14);
}
virBufferAdd(&buf, " <devices>\n", 12);
/* in case of HVM we have devices emulation */

24
src/xml.c
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@ -567,7 +567,7 @@ virDomainGetXMLDesc(virDomainPtr domain, int flags)
return (ret);
}
#endif
#endif /* 0 - UNUSED */
#ifndef PROXY
/**
@ -695,6 +695,28 @@ virDomainParseXMLOSDescHVM(xmlNodePtr node, virBufferPtr buf, xmlXPathContextPtr
xmlXPathFreeObject(obj);
obj = NULL;
}
obj = xmlXPathEval(BAD_CAST "/domain/features/acpi", ctxt);
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr == 1)) {
virBufferAdd(buf, "(acpi 1)", 8);
xmlXPathFreeObject(obj);
obj = NULL;
}
obj = xmlXPathEval(BAD_CAST "/domain/features/apic", ctxt);
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr == 1)) {
virBufferAdd(buf, "(apic 1)", 8);
xmlXPathFreeObject(obj);
obj = NULL;
}
obj = xmlXPathEval(BAD_CAST "/domain/features/pae", ctxt);
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr == 1)) {
virBufferAdd(buf, "(pae 1)", 7);
xmlXPathFreeObject(obj);
obj = NULL;
}
}
obj = xmlXPathEval(BAD_CAST "count(domain/devices/console) > 0", ctxt);