Updated Coreinfo useful for Hyper-V systems

re: Updated Coreinfo useful for Hyper-V systems

Ian Yates — Thu, 08 Sep 2011 16:13:40 GMT

@Ivan

If you are running Hyper-V at the moment then the CPU detection app reports "Hypervisor" but cannot then report on the functions of the CPU that Hyper-V has monopolised, such as VMX (not sure about EPT, but since you have a Core 2, as Andre said, you won't have EPT anyway).

The root Windows partition that you're in is patially virtualised. That is, it runs on top of the hypervisor but still gets direct access to hardware that other virtual machines can't get.

re: Updated Coreinfo useful for Hyper-V systems

Andre.Ziegler — Wed, 07 Sep 2011 14:17:23 GMT

@Ivan

en.wikipedia.org/.../Hypervisor

If you see a - the feature is missing. SLAT/EPT is supported starting with Intel i Core CPUs. SLAT/EPT is afaik required for RemoteFX. Ben can tell you more.

re: Updated Coreinfo useful for Hyper-V systems

Ivan — Wed, 07 Sep 2011 11:28:49 GMT

Hi! I have following output of coreinfo -v command:

Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz

Intel64 Family 6 Model 15 Stepping 11, GenuineIntel

HYPERVISOR * Hypervisor is present

VMX - Supports Intel hardware-assisted virtualization

EPT - Supports Intel extended page tables

What does it mean? Does it mean that the CPU VMX is missing? I have Hyper-V role installed and run several VMs on that PC. So the CPU has hardware-assisted virtualization as I understand. So what is VMX here? What is HYPERVISOR?

Thanks

re: Updated Coreinfo useful for Hyper-V systems

Janson — Wed, 07 Sep 2011 11:11:23 GMT

Cheers for the update Ben.

May read this as making sure you have a SLAT capable processor if you wish to run Windows 8 + Hyper-V and 3D intensive apps. Wondering outloud, would this also be relevant for apps that make use of the GPU for hardware acceleration, such as IE9/10 with HTML 5 rendering?

Cheers

Janson

re: Updated Coreinfo useful for Hyper-V systems

Gandalf50 — Wed, 07 Sep 2011 04:44:15 GMT

Thanks for the update info.