Present VT feature to guest OS

[admin]

Hi all,

Does anyone know of a .vmx file entry that will cause Workstation to pass through the CPU VT feature to the guest OS?

Thanks,

Alex

[admin]

Does anyone know of a .vmx file entry that will cause Workstation to pass through the CPU VT feature to the guest OS?

What do you mean? Allow the guest to control the VT hardware? This seems like a bad idea.

[admin]

The virtual CPU does not support VT. You can force the cpuid feature flag to 1 through the .vmx file, but all of the VT instructions will still fault.

[TCronin]

VT is only supported in Workstation 6 with Ubuntu 7.0.4. It's a check box on Options/Advanced under the guest setttings

[admin]

I believe you may be thinking of VMI (paravirtualization support). There is no way to enable VT in the guest in any current VMware product

.

[admin]

Thanks for the replies guys, what I'm trying to do it install Virtual Iron under Workstation 6, it checks for CPU VT support on boot and refuses to go further if it doesn't detect it is available.

[admin]

Right. Virtual Iron requires the VMX extensions (a.k.a. VT), and VMware's virtual CPUs do not provide them. Unfortunately, it's not as straightforward as just passing through the capability flag. I would be surprised if you could run Virtual Iron under Virtual Iron, for the same reason.

[continuum]

In Virtual Box you can specify to pass VT to the guest - but I doubt it will work for Virtual Iron - it didn't work to run Viridian either