[libvirt] [PATCH v3 13/28] conf: Parse and format virDomainChrSerialTargetModel
Andrea Bolognani
abologna at redhat.com
Sun Nov 26 22:25:34 UTC 2017
This information will be used to select, and store in the guest
configuration in order to guarantee ABI stability, the concrete
(hypervisor-specific) model for serial devices.
Signed-off-by: Andrea Bolognani <abologna at redhat.com>
---
docs/formatdomain.html.in | 16 ++++++++--
docs/schemas/domaincommon.rng | 15 +++++++++
src/conf/domain_conf.c | 72 ++++++++++++++++++++++++++++++++++++++++++-
src/conf/domain_conf.h | 12 ++++++++
4 files changed, 112 insertions(+), 3 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 12d7fb407..3126d6ed1 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -6531,7 +6531,9 @@ qemu-kvm -net nic,model=? /dev/null
<devices>
<!-- USB serial port -->
<serial type='pty'>
- <target type='usb-serial' port='0'/>
+ <target type='usb-serial' port='0'>
+ <model name='usb-serial'/>
+ </target>
<address type='usb' bus='0' port='1'/>
</serial>
</devices>
@@ -6547,6 +6549,16 @@ qemu-kvm -net nic,model=? /dev/null
and <code>pci-serial</code> (usable whenever PCI support is available).
</p>
+ <p>
+ <span class="since">Since 3.10.0</span>, the <code>target</code>
+ element can have an optional <code>model</code> subelement;
+ valid values for its <code>name</code> attribute are:
+ <code>isa-serial</code> (usable with the <code>isa-serial</code> target
+ type); <code>usb-serial</code> (usable with the <code>usb-serial</code>
+ target type); <code>pci-serial</code>
+ (usable with the <code>pci-serial</code> target type).
+ </p>
+
<p>
If any of the attributes is not specified by the user, libvirt will
choose a value suitable for most users.
@@ -6567,7 +6579,7 @@ qemu-kvm -net nic,model=? /dev/null
<!-- Serial console -->
<console type='pty'>
<source path='/dev/pts/2'/>
- <target type='serial' port='0'/>
+ <target type='serial' port='0'/>
</console>
</devices>
...</pre>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index f1808065b..fbba092d1 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3589,6 +3589,18 @@
</attribute>
</define>
+ <define name='qemucdevSerialTgtModel'>
+ <element name='model'>
+ <attribute name='name'>
+ <choice>
+ <value>isa-serial</value>
+ <value>usb-serial</value>
+ <value>pci-serial</value>
+ </choice>
+ </attribute>
+ </element>
+ </define>
+
<define name="qemucdevTgtDef">
<element name="target">
<interleave>
@@ -3603,6 +3615,9 @@
<optional>
<attribute name="port"/>
</optional>
+ <optional>
+ <ref name="qemucdevSerialTgtModel"/>
+ </optional>
</interleave>
</element>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 42e7596ac..5df5f3aae 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -472,6 +472,14 @@ VIR_ENUM_IMPL(virDomainChrConsoleTarget,
"sclp",
"sclplm")
+VIR_ENUM_IMPL(virDomainChrSerialTargetModel,
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST,
+ "none",
+ "isa-serial",
+ "usb-serial",
+ "pci-serial",
+);
+
VIR_ENUM_IMPL(virDomainChrDevice, VIR_DOMAIN_CHR_DEVICE_TYPE_LAST,
"parallel",
"serial",
@@ -11538,14 +11546,42 @@ virDomainChrTargetTypeFromString(int devtype,
return ret;
}
+static int
+virDomainChrTargetModelFromString(int devtype,
+ const char *targetModel)
+{
+ int ret = -1;
+
+ if (!targetModel)
+ return 0;
+
+ switch ((virDomainChrDeviceType) devtype) {
+ case VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL:
+ ret = virDomainChrSerialTargetModelTypeFromString(targetModel);
+ break;
+
+ case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
+ case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
+ case VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL:
+ case VIR_DOMAIN_CHR_DEVICE_TYPE_LAST:
+ /* Target model not supported yet */
+ ret = 0;
+ break;
+ }
+
+ return ret;
+}
+
static int
virDomainChrDefParseTargetXML(virDomainChrDefPtr def,
xmlNodePtr cur,
unsigned int flags)
{
int ret = -1;
+ xmlNodePtr child;
unsigned int port;
char *targetType = virXMLPropString(cur, "type");
+ char *targetModel = NULL;
char *addrStr = NULL;
char *portStr = NULL;
char *stateStr = NULL;
@@ -11559,6 +11595,24 @@ virDomainChrDefParseTargetXML(virDomainChrDefPtr def,
goto error;
}
+ child = cur->children;
+ while (child != NULL) {
+ if (child->type == XML_ELEMENT_NODE &&
+ virXMLNodeNameEqual(child, "model")) {
+ targetModel = virXMLPropString(child, "name");
+ }
+ child = child->next;
+ }
+
+ if ((def->targetModel =
+ virDomainChrTargetModelFromString(def->deviceType,
+ targetModel)) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unknown target model '%s' specified for character device"),
+ targetModel);
+ goto error;
+ }
+
switch (def->deviceType) {
case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
switch (def->targetType) {
@@ -11647,6 +11701,7 @@ virDomainChrDefParseTargetXML(virDomainChrDefPtr def,
ret = 0;
error:
VIR_FREE(targetType);
+ VIR_FREE(targetModel);
VIR_FREE(addrStr);
VIR_FREE(portStr);
VIR_FREE(stateStr);
@@ -24028,8 +24083,23 @@ virDomainChrTargetDefFormat(virBufferPtr buf,
}
virBufferAsprintf(buf,
- "port='%d'/>\n",
+ "port='%d'",
def->target.port);
+
+ if (def->targetModel != VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE) {
+ virBufferAddLit(buf, ">\n");
+
+ virBufferAdjustIndent(buf, 2);
+ virBufferAsprintf(buf,
+ "<model name='%s'/>\n",
+ virDomainChrSerialTargetModelTypeToString(def->targetModel));
+ virBufferAdjustIndent(buf, -2);
+
+ virBufferAddLit(buf, "</target>\n");
+ } else {
+ virBufferAddLit(buf, "/>\n");
+ }
+
break;
case VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL:
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index ac6c4a0ed..7895dea55 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1108,6 +1108,17 @@ typedef enum {
VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST
} virDomainChrConsoleTargetType;
+typedef enum {
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_NONE = 0,
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_ISA_SERIAL,
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_USB_SERIAL,
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_PCI_SERIAL,
+
+ VIR_DOMAIN_CHR_SERIAL_TARGET_MODEL_LAST
+} virDomainChrSerialTargetModel;
+
+VIR_ENUM_DECL(virDomainChrSerialTargetModel);
+
typedef enum {
VIR_DOMAIN_CHR_TYPE_NULL,
VIR_DOMAIN_CHR_TYPE_VC,
@@ -1206,6 +1217,7 @@ struct _virDomainChrDef {
int targetType; /* enum virDomainChrConsoleTargetType ||
enum virDomainChrChannelTargetType ||
enum virDomainChrSerialTargetType according to deviceType */
+ int targetModel; /* enum virDomainChrSerialTargetModel */
union {
int port; /* parallel, serial, console */
--
2.14.3
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