Add support for multiple serial ports into the Xen driver

this is the patch to add support for multiple serial ports to the
libvirt Xen driver. It support both old style (serial = "pty") and
new style (serial = [ "/dev/ttyS0", "/dev/ttyS1" ]) definition and
tests for xml2sexpr, sexpr2xml and xmconfig have been added as well.

Written and tested on RHEL-5 Xen dom0 and working as designed but
the Xen version have to have patch for RHBZ #614004 but this patch
is for upstream version of libvirt.

Also, this patch is addressing issue described in RHBZ #670789.

Signed-off-by: Michal Novotny <minovotn@redhat.com>

tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.sexpr

@@ -0,0 +1 @@
+(domain (domid 1)(name 'fvtest')(memory 400)(maxmem 400)(vcpus 1)(uuid 'b5d70dd275cdaca517769660b059d8ff')(on_poweroff 'destroy')(on_reboot 'restart')(on_crash 'restart')(image (hvm (kernel '/usr/lib/xen/boot/hvmloader')(vcpus 1)(boot c)(cdrom '/root/boot.iso')(acpi 1)(usb 1)(parallel none)(serial (/dev/ttyS0 /dev/ttyS1))(device_model '/usr/lib64/xen/bin/qemu-dm')(vnc 1)))(device (vbd (dev 'ioemu:hda')(uname 'file:/root/foo.img')(mode 'w')))(device (vif (mac '00:16:3e:1b:b1:47')(bridge 'xenbr0')(script 'vif-bridge')(type ioemu))))

tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2-ports.xml

@@ -0,0 +1,53 @@
+<domain type='xen' id='1'>
+  <name>fvtest</name>
+  <uuid>b5d70dd2-75cd-aca5-1776-9660b059d8ff</uuid>
+  <memory>409600</memory>
+  <currentMemory>409600</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type>hvm</type>
+    <loader>/usr/lib/xen/boot/hvmloader</loader>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/lib64/xen/bin/qemu-dm</emulator>
+    <disk type='file' device='disk'>
+      <driver name='file'/>
+      <source file='/root/foo.img'/>
+      <target dev='hda' bus='ide'/>
+    </disk>
+    <disk type='file' device='cdrom'>
+      <driver name='file'/>
+      <source file='/root/boot.iso'/>
+      <target dev='hdc' bus='ide'/>
+      <readonly/>
+    </disk>
+    <interface type='bridge'>
+      <mac address='00:16:3e:1b:b1:47'/>
+      <source bridge='xenbr0'/>
+      <script path='vif-bridge'/>
+      <target dev='vif1.0'/>
+    </interface>
+    <serial type='dev'>
+      <source path='/dev/ttyS0'/>
+      <target port='0'/>
+    </serial>
+    <serial type='dev'>
+      <source path='/dev/ttyS1'/>
+      <target port='1'/>
+    </serial>
+    <console type='dev'>
+      <source path='/dev/ttyS0'/>
+      <target type='serial' port='0'/>
+    </console>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='vnc' port='5901' autoport='no'/>
+  </devices>
+</domain>

tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.sexpr

@@ -0,0 +1 @@
+(domain (domid 1)(name 'fvtest')(memory 400)(maxmem 400)(vcpus 1)(uuid 'b5d70dd275cdaca517769660b059d8ff')(on_poweroff 'destroy')(on_reboot 'restart')(on_crash 'restart')(image (hvm (kernel '/usr/lib/xen/boot/hvmloader')(vcpus 1)(boot c)(cdrom '/root/boot.iso')(acpi 1)(usb 1)(parallel none)(serial (none /dev/ttyS1))(device_model '/usr/lib64/xen/bin/qemu-dm')(vnc 1)))(device (vbd (dev 'ioemu:hda')(uname 'file:/root/foo.img')(mode 'w')))(device (vif (mac '00:16:3e:1b:b1:47')(bridge 'xenbr0')(script 'vif-bridge')(type ioemu))))

tests/sexpr2xmldata/sexpr2xml-fv-serial-dev-2nd-port.xml

@@ -0,0 +1,49 @@
+<domain type='xen' id='1'>
+  <name>fvtest</name>
+  <uuid>b5d70dd2-75cd-aca5-1776-9660b059d8ff</uuid>
+  <memory>409600</memory>
+  <currentMemory>409600</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type>hvm</type>
+    <loader>/usr/lib/xen/boot/hvmloader</loader>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <acpi/>
+  </features>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/lib64/xen/bin/qemu-dm</emulator>
+    <disk type='file' device='disk'>
+      <driver name='file'/>
+      <source file='/root/foo.img'/>
+      <target dev='hda' bus='ide'/>
+    </disk>
+    <disk type='file' device='cdrom'>
+      <driver name='file'/>
+      <source file='/root/boot.iso'/>
+      <target dev='hdc' bus='ide'/>
+      <readonly/>
+    </disk>
+    <interface type='bridge'>
+      <mac address='00:16:3e:1b:b1:47'/>
+      <source bridge='xenbr0'/>
+      <script path='vif-bridge'/>
+      <target dev='vif1.0'/>
+    </interface>
+    <serial type='dev'>
+      <source path='/dev/ttyS1'/>
+      <target port='1'/>
+    </serial>
+    <console type='dev'>
+      <source path='/dev/ttyS1'/>
+      <target type='serial' port='1'/>
+    </console>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='vnc' port='5901' autoport='no'/>
+  </devices>
+</domain>