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[Xen-API] Xen 3.4.2 can not recognize Intel-vmx


  • To: xen-api@xxxxxxxxxxxxxxxxxxx
  • From: çèå Luwei Cheng <chengluwei@xxxxxxxxx>
  • Date: Mon, 19 Apr 2010 22:26:14 +0800
  • Delivery-date: Mon, 19 Apr 2010 07:37:08 -0700
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Dear All,

I am testing the HVM performance of Xen 3.4.2 with centos-5.4 on Dell PowerEdge R610 with Intel Xeon E5540 processors. However, it seems that Xen 3.4.2 can not recognize VMX at all. Anyone who are familiar with the problem? Thank you very  much.

Best Regards,
CHENG Luwei


The following information of CPU flags are for your continence to diagnose the problem:

$ cat /proc/cpuinfo
------------------------------------------------------
Xen 3.4.2-CentOS5.4
flags           : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc pni est cx16 lahf_lm
------------------------------------------------------
Xen 3.1.2-CentOS5.4
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
------------------------------------------------------
Fedora 11- without Xen
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology tsc_reliable nonstop_tsc pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
-----------------------------------------------------

Thank you again.




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