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Old Sep 11, 2006, 03:28 PM   #1
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Leon DK
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Default AMD Virtualization

Does anyone know how it works?
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Old Sep 11, 2006, 03:35 PM   #2
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Yes, the Pacifica and Intel VT features of their new processors add instructions sets specifically for the manipulation of code in ring 0, by adding a psuedo layer -1 ring. This means that multiple installed guest OS'es can function as if they were installed directly on the hardware (there is some obfuscation, such as the chipset is shown as a legacy intel 440 and the graphics is an S2 or similar).

Are you talking about on the specific hardware level or in terms of applications - Host OS'es like VMWare ESX server, Linux with Zen; or add-on's to host OS'es (MS Virtual Server/PC, VMWare Virtual Server/Workstation, Virtuozzo).
I believe the latest Mac OS has built in virtualization support, and Vista/Server 2007 will also.
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Old Sep 11, 2006, 11:15 PM   #3
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And so far it all seems to be slow or at least not any faster than software.
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Old Sep 12, 2006, 02:41 AM   #4
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Virtualization is yummy. I can't wait until we have virtualized O.S.es running in hardware with no performance penalty. Crash-free computing ftw!

Note: I realize this is possible now with virtualization software such as VMWare and the like, I'm waiting for this to be a feature of the O.S. MS better be thinking along these lines soon....
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Old Sep 12, 2006, 10:27 AM   #5
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MS is thinking along these lines, virtualization will be built into Vista and Server 2007, with special licensing terms to allow a reinstall on the virtual system. I'm not sure of the details yet, but I think that currently with MS virtual server 2005 R2 if you use it on Server 2003 R2 Enterprise you can then reinstall your same copy of the host OS as a guest OS in virtualization without having to buy another license.

Xen is trying to be integrated into the Linux kernel, as is VMWare, but the problem is Xen is doing it with code the breaks everyone elses VM software, and is licensed, wherease VMWare's works with everyones and is open source. Kinda odd.

The next evolution of Virtualization will to be bringing the graphics horsepower into play, currently it doesn't matter if you have a X1950XTX crossfire or an integrated intel graphics chipset, it still looks like a crappy Dx7 card (S2 or S3, something like that).

The new VI3 product from VMWare does take advantage of the new hardware capabilities and offers more performance, though the increase is not significant. However it does give the clustering and automatic failover abilities a boost for ESX Server.
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