vmx: Support persistent CPU shares

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.vmx

@@ -6,6 +6,7 @@ uuid.bios = "50 11 5e 16 9b dc 49 d7-f1 71 53 c4 d7 f9 17 10"
 displayName = "Fedora11"
 memsize = "1024"
 numvcpus = "1"
+sched.cpu.shares = "low"
 scsi0.present = "true"
 scsi0.virtualDev = "lsilogic"
 scsi0:0.present = "true"

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-1.xml

@@ -4,6 +4,9 @@
   <memory>1048576</memory>
   <currentMemory>1048576</currentMemory>
   <vcpu>1</vcpu>
+  <cputune>
+    <shares>500</shares>
+  </cputune>
   <os>
     <type>hvm</type>
   </os>

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.vmx

@@ -6,6 +6,7 @@ uuid.bios = "56 4d 9b ef ac d9 b4 e0-c8 f0 ae a8 b9 10 35 15"
 displayName = "virtMonServ1"
 memsize = "512"
 numvcpus = "1"
+sched.cpu.shares = "normal"
 scsi0.present = "true"
 scsi0.virtualDev = "lsilogic"
 scsi0:0.present = "true"

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-4.xml

@@ -4,6 +4,9 @@
   <memory>524288</memory>
   <currentMemory>524288</currentMemory>
   <vcpu>1</vcpu>
+  <cputune>
+    <shares>1000</shares>
+  </cputune>
   <os>
     <type>hvm</type>
   </os>

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.vmx

@@ -8,6 +8,7 @@ annotation = "Centos 5.5 64bit Server"
 memsize = "2048"
 sched.mem.minsize = "256"
 numvcpus = "2"
+sched.cpu.shares = "normal"
 scsi0.present = "true"
 scsi0.virtualDev = "lsilogic"
 scsi0:0.present = "true"

tests/xml2vmxdata/xml2vmx-esx-in-the-wild-5.xml

@@ -8,6 +8,9 @@
     <min_guarantee>262144</min_guarantee>
   </memtune>
   <vcpu>2</vcpu>
+  <cputune>
+    <shares>2000</shares>
+  </cputune>
   <os>
     <type arch='x86_64'>hvm</type>
   </os>