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Vanderpool "VT-x" hardware Virtualization Technology

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Hi everybody!

I wonder... what about this new Vanderpool "VT-x" hardware Virtualization Technology build by Intel into Core Solo/Duo chips, which allows to run several OSes concurrently on the same computer?

It's like VMware built in hardware. the CPU allows tasks for, say: Windows XP running along Mac OS X at the same time. You can switch to whatever OS you choose at any time.


Does anyone knwow how VT-x is implemented into Core Duo and how to access this feature? You would not have to answer any multiple-boot prompt anymore.

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Really? From this recent Intel document (January 2006):

"The Intel® Core™ Duo Processor also includes support for Intel® Virtualization Technology which is a set of hardware enhancements to Intel server and client systems that combined with the appropriate software, will enable enhanced virtualization robustness and performance for both enterprise and consumer uses."

I would think nobody knows how to access this feature by software yet...

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Ok, thanks for the info. The Reg -and others- confirmed it.

According to them, VT would appear only with the upcoming high-end Core Duo T2700 (2.33 GHz, Q1-2006)

VT would be inaccessible perhaps because current chipset (945GM and 945PM) would not support it yet.

Edited by Steve MacWin
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The current chipsets (codename "Calistoga") for Core Solo/Duo are:

- 945PM (no integrated graphics)

- 945GM (GMA950)


The next Calistoga chipsets will be:

- 945GML (Celeron)

- 945GMS

- 945GMZ

- 955XM (high-end, perhaps cancelled)

quickly followed by:

- 945GZ

- 946GZ

- 946PL


The chipsets after Calistoga are codenamed "Broadwater". They will be introduced with the new 64-bit dualcore desktop CPU "Conroe" in July 2006.

Their name scheme is slightly modified:

- P965 (no integrated graphics)

- G965 (integrated graphics)

- Q963

- Q965


But it is not clear if some Calistoga chipsets before Broadwater will allow VT-compatible processors like Core Duo to effectively use hardware virtualization.

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Well the powermac replacement will likely be based on conroe with one of the broadwater chipsets - so we should definitely see VT then. We are unlikely to see VT present in either the iBook updates or eMacs. The only possibility could be that addition macbooks could be released that support VT?

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  • 2 weeks later...

Like everybody else I've read the Register article, and seen the comment about the particular stepping posted by another member. Generic posted a link to http://www.appleintelfaq.com/#10.1 on the 24th Jan, however, if you check it again you will see that Dave Schroeder (the guy who runs the site) has been in correspondence with Intel after that date -


Response (Bert Bullough) - 01/27/2006 03:24 PM


Dear Dave,


The article you reference is mistaken. The Intel Core Duo processor includes support for Intel® Virtualization Technology (VT). Intel does not have information on the processors used in third party computers, as such Apple's computers may or may not include VT. You will need to contact Apple directly for details on their product lines.




The article they refer to is the one from the Register. So it does seem (together with the tech doc from Intel and the fact that dmesg shows a VMX flag) that it actually is in the Core Duo. :whistle:

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We have the answer for this existing but "apparently disabled" or "currently not accessible" virtualization feature.

According to this eWeek article, Intel says "Paxville" Xeons MP processors, which have disabled VT, can now have VT enabled with a simple BIOS update!

"Speaking at a conference here on virtualization, Diane Bryant, vice president and general manager of Intel's Server Platforms Group, said that users can now contact systems makers Dell, Hewlett-Packard and IBM to help them upgrade the BIOS on the chip to enable the activation of the Intel Virtualization Technology. The technology was in the chip when it started shipping last year, but it was disabled until now."
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  • 4 years later...
hello guys I own an Intel Pentium Dual-Core E5200 and does not support VT-x. Then you can install Leopard in some way?

4 Years old Topic, 4 Years man.

To response, Yes u can

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