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From: Yong Liu <yong.liu@intel.com>
To: dts@dpdk.org
Date: Thu,  4 Jun 2015 14:28:36 +0800
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Subject: [dts] [PATCH 2/5] Change virtual machine default directory to host
	base_dir.
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From: Marvin Liu <yong.liu@intel.com>

Add islive function in virt_base module to check whether vm is alive.

Signed-off-by: Marvin Liu <yong.liu@intel.com>

diff --git a/framework/virt_base.py b/framework/virt_base.py
index 12aa318..3daf42f 100644
--- a/framework/virt_base.py
+++ b/framework/virt_base.py
@@ -69,6 +69,8 @@ class VirtBase(object):
         # replace dut session
         self.host_session = self.host_dut.host_session
         self.host_logger = self.host_dut.logger
+        # base_dir existed for host dut has prepared it
+        self.host_session.send_expect("cd %s" % self.host_dut.base_dir, "# ")
 
         # init the host resouce pool for VM
         self.virt_pool = self.host_dut.virt_pool
@@ -81,6 +83,7 @@ class VirtBase(object):
         self.virt_type = self.get_virt_type()
 
         self.params = []
+
         # default call back function is None
         self.callback = None
 
@@ -141,6 +144,7 @@ class VirtBase(object):
             if key in param.keys():
                 param[key] = value
                 return
+
         self.params.append({key: value})
 
     def compose_boot_param(self):
@@ -193,6 +197,18 @@ class VirtBase(object):
         """
         NotImplemented
 
+    def isalive(self):
+        """
+        Check whether VM existed.
+        """
+        vm_status = self.host_session.send_expect(
+            "ps aux | grep qemu | grep 'name %s '| grep -v grep" % self.vm_name, "# ")
+
+        if self.vm_name in vm_status:
+            return True
+        else:
+            return False
+
     def start(self):
         """
         Start VM and instantiate the VM with VirtDut.
-- 
1.9.3