From f3763c47b8c77810c8e33d02d93ddef873bf8fae Mon Sep 17 00:00:00 2001
From: "adsharma@los-vmm.sc.intel.com" <adsharma@los-vmm.sc.intel.com>
Date: Fri, 12 Aug 2005 09:25:49 -0800
Subject: [PATCH] Distinguish ioemu handled devices and para virtualized
 devices

Signed-off-by: Xiaofeng Ling <xiaofeng.ling@intel.com>
Signed-off-by: Arun Sharma <arun.sharma@intel.com>
---
 tools/examples/xmexample.vmx          |  2 +-
 tools/python/xen/xend/image.py        | 10 +++++++++-
 tools/python/xen/xend/server/blkif.py | 11 ++++++++++-
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/tools/examples/xmexample.vmx b/tools/examples/xmexample.vmx
index 95616cda61..77662fcca9 100644
--- a/tools/examples/xmexample.vmx
+++ b/tools/examples/xmexample.vmx
@@ -34,7 +34,7 @@ name = "ExampleVMXDomain"
 # and MODE is r for read-only, w for read-write.
 
 #disk = [ 'phy:hda1,hda1,r' ]
-disk = [ 'file:/var/images/min-el3-i386.img,hda,w' ]
+disk = [ 'file:/var/images/min-el3-i386.img,ioemu:hda,w' ]
 
 #----------------------------------------------------------------------------
 # Set according to whether you want the domain restarted when it exits.
diff --git a/tools/python/xen/xend/image.py b/tools/python/xen/xend/image.py
index afa6d1da99..ebf1b2009a 100644
--- a/tools/python/xen/xend/image.py
+++ b/tools/python/xen/xend/image.py
@@ -16,6 +16,7 @@
 #============================================================================
 
 import os, string
+import re
 
 import xen.lowlevel.xc; xc = xen.lowlevel.xc.new()
 from xen.xend import sxp
@@ -329,8 +330,15 @@ class VmxImageHandler(ImageHandler):
             if name == 'vbd':
                vbdinfo = sxp.child(device, 'vbd')
                uname = sxp.child_value(vbdinfo, 'uname')
-               vbddev = sxp.child_value(vbdinfo, 'dev')
+               typedev = sxp.child_value(vbdinfo, 'dev')
                (vbdtype, vbdparam) = string.split(uname, ':', 1)
+               if re.match('^ioemu:', typedev):
+                  (emtype, vbddev) = string.split(typedev, ':', 1)
+               else:
+                  emtype = 'vbd'
+                  vbddev = typedev
+               if emtype != 'ioemu':
+                  continue;
                vbddev_list = ['hda', 'hdb', 'hdc', 'hdd']
                if vbddev not in vbddev_list:
                   raise VmError("vmx: for qemu vbd type=file&dev=hda~hdd")
diff --git a/tools/python/xen/xend/server/blkif.py b/tools/python/xen/xend/server/blkif.py
index 5bd89e8353..49d1fc5f9e 100755
--- a/tools/python/xen/xend/server/blkif.py
+++ b/tools/python/xen/xend/server/blkif.py
@@ -18,6 +18,7 @@
 """Support for virtual block devices.
 """
 import string
+import re
 
 from xen.util import blkif
 from xen.xend.XendError import XendError, VmError
@@ -199,6 +200,7 @@ class BlkDev(Dev):
         self.vdev = None
         self.mode = None
         self.type = None
+        self.emtype = None
         self.params = None
         self.node = None
         self.device = None
@@ -237,7 +239,12 @@ class BlkDev(Dev):
         # Split into type and type-specific params (which are passed to the
         # type-specific control script).
         (self.type, self.params) = string.split(self.uname, ':', 1)
-        self.dev = sxp.child_value(config, 'dev')
+        typedev = sxp.child_value(config, 'dev')
+        if re.match( '^ioemu:', typedev):
+            (self.emtype, self.dev) = string.split(typedev, ':', 1)
+        else:
+            self.emtype = 'vbd'
+            self.dev = typedev
         if not self.dev:
             raise VmError('vbd: Missing dev')
         self.mode = sxp.child_value(config, 'mode', 'r')
@@ -258,6 +265,8 @@ class BlkDev(Dev):
         if recreate:
             pass
         else:
+            if self.emtype == 'ioemu':
+                return
             node = Blkctl.block('bind', self.type, self.params)
             self.setNode(node)
             self.attachBackend()
-- 
2.30.2