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John Paul Cook

Windows 8 client virtualization

Hyper-V is coming to Windows 8, but you must have a processor that supports SLAT. Virtual machines created with Virtual PC aren’t easily transferred to Windows 2008 Hyper-V and vice-versa. With Windows 8, it will be easy to move vhds from Windows 8 on your laptop or desktop to Windows 8 server and back again.

To find out if your processor supports SLAT, run coreinfo –v from a command window running as administrator. Download coreinfo from here.

Check the second column of the output for a – or a *. You want to see a *, which indicates a feature is supported.

My MacBook Pro supports SLAT as this output shows:

C:\Media\Coreinfo>coreinfo -v

Coreinfo v3.04 - Dump information on system CPU and memory topology
Copyright (C) 2008-2012 Mark Russinovich
Sysinternals - www.sysinternals.com

Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz
Intel64 Family 6 Model 42 Stepping 7, GenuineIntel
HYPERVISOR - Hypervisor is present
VMX * Supports Intel hardware-assisted virtualization
EPT * Supports Intel extended page tables (SLAT)

C:\Media\Coreinfo>

Published Wednesday, June 06, 2012 11:23 PM by John Paul Cook

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Brian said:

Have you ever seen coreinfo -v give the error: "Error loading driver: Access is denied."  I'm running it from an admin cmd prompt on a Win7 Lenovo T420 laptop with an Intel Core i5-2520M.

June 7, 2012 10:02 AM
 

Ian said:

Brian: On my T410 I get different results with coreinfo.exe ver 3.06 vs 3.3 -- like this:

Coreinfo v3.05 - Dump information on system CPU and memory topology

Copyright (C) 2008-2012 Mark Russinovich

Sysinternals - www.sysinternals.com

Intel(R) Core(TM) i7 CPU       M 620  @ 2.67GHz

Intel64 Family 6 Model 37 Stepping 5, GenuineIntel

HYPERVISOR      -       Hypervisor is present

VMX             *       Supports Intel hardware-assisted virtualization

EPT             *       Supports Intel extended page tables (SLAT)

Coreinfo v3.3 - Dump information on system CPU and memory topology

Copyright (C) 2008-2014 Mark Russinovich

Sysinternals - www.sysinternals.com

Intel(R) Core(TM) i7 CPU       M 620  @ 2.67GHz

Intel64 Family 6 Model 37 Stepping 5, GenuineIntel

Microcode signature: 00000003

Error loading driver:

The system cannot find the file specified.

November 25, 2014 1:41 PM

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About John Paul Cook

John Paul Cook is a Technology Solutions Professional for Microsoft's data platform and works out of Microsoft's Houston office. Prior to joining Microsoft, he was a Microsoft SQL Server MVP. He is experienced in Microsoft SQL Server and Oracle database application design, development, and implementation. He has spoken at many conferences including Microsoft TechEd and the SQL PASS Summit. He has worked in oil and gas, financial, manufacturing, and healthcare industries. John is also a Registered Nurse who graduated from Vanderbilt University with a Master of Science in Nursing Informatics and is an active member of the Sigma Theta Tau nursing honor society. He volunteers as a nurse at safety net clinics. Contributing author to SQL Server MVP Deep Dives and SQL Server MVP Deep Dives Volume 2. Opinions expressed in John's blog are strictly his own and do not represent Microsoft in any way.

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