S390: Add SCLP console front end support

The SCLP console is the native console type for s390 and is preferred
over the virtio console as it doesn't require special drivers and
is more efficient. Recent versions of QEMU come with SCLP support
which is hereby enabled.

The new target types 'sclp' and 'sclplm' can be used to specify a
SCLP console. Adding documentation, domain schema and XML processing
support.

Signed-off-by: J.B. Joret <jb@linux.vnet.ibm.com>
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 977497af297fc07f574928df9d8ed8311b8158ae..c5725e5d3a559bc9be99d63dd3b44db722369398 100644 (file)
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3701,7 +3701,7 @@ qemu-kvm -net nic,model=? /dev/null
     </p>
 
     <ul>
-      <li>If no <code>targetType</code> attribue is set, then the default
+      <li>If no <code>targetType</code> attribute is set, then the default
         device type is according to the hypervisor's rules. The default
         type will be added when re-querying the XML fed into libvirt.
         For fully virtualized guests, the default device type will usually
@@ -3715,6 +3715,12 @@ qemu-kvm -net nic,model=? /dev/null
       <li>Only the first <code>console</code> element may use a <code>targetType</code>
         of <code>serial</code>. Secondary consoles must all be paravirtualized.
       </li>
+      <li>On s390, the <code>console</code> element may use a
+        <code>targetType</code> of <code>sclp</code> or <code>sclplm</code>
+        (line mode). SCLP is the native console type for s390. There's no
+        controller associated to SCLP consoles.
+        <span class="since">Since 1.0.2</span>
+      </li>
     </ul>
 
     <p>
@@ -3740,6 +3746,17 @@ qemu-kvm -net nic,model=? /dev/null
   &lt;/devices&gt;
   ...</pre>
 
+<pre>
+  ...
+  &lt;devices&gt;
+    &lt;!-- KVM s390 sclp console --&gt;
+    &lt;console type='pty'&gt;
+      &lt;source path='/dev/pts/1'/&gt;
+      &lt;target type='sclp' port='0'/&gt;
+    &lt;/console&gt;
+  &lt;/devices&gt;
+  ...</pre>
+
     <p>
       If the console is presented as a serial port, the <code>target</code>
       element has the same attributes as for a serial port. There is usually

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 7a9778159facbda3ba94dec4040131652a9fdedf..be121023ab18583924552564f6919d01c8e01a8f 100644 (file)
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -2467,6 +2467,8 @@
         <value>virtio</value>
         <value>lxc</value>
         <value>openvz</value>
+        <value>sclp</value>
+        <value>sclplm</value>
       </choice>
     </attribute>
   </define>

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index b2bc57a7bd09eaa134619440f2c6b0c2e59cda1c..b3a35b737c9f9f31b289bb448927058b50c99335 100644 (file)
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -355,7 +355,9 @@ VIR_ENUM_IMPL(virDomainChrConsoleTarget,
               "uml",
               "virtio",
               "lxc",
-              "openvz")
+              "openvz",
+              "sclp",
+              "sclplm")
 
 VIR_ENUM_IMPL(virDomainChrDevice, VIR_DOMAIN_CHR_DEVICE_TYPE_LAST,
               "parallel",

diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index d825a24378f2d6fcfc28710485073f2e9706ba0b..4284caf6b3b4db6252b36fa7eaec9ab67471589c 100644 (file)
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -933,6 +933,8 @@ enum virDomainChrConsoleTargetType {
     VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO,
     VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC,
     VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_OPENVZ,
+    VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP,
+    VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM,
 
     VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST
 };