Intel VT-x on Windows Server 2008 guest

[BrainInAJar]

Hello

I am having a puzzling time getting something working in a Windows Server 2008 R2 virtual machine. My end goal is to get Android Studio running on the virtual machine. The Android emulator (part of the Android Studio) requires Intel HAXM (hardware acceleration manager) to be installed which in turn requires Intel VT-x to be enabled on the machine, and it is this last step which is causing some problems.

My setup is:
Current host (my laptop): Intel i7-2640M CPU (2 cores), Windows 7, VT-x enabled (verified with Intel Processor Identification Utility (PIU))
Guest : 1 CPU, Windows Server 2008 R2 standard, VT-x/AMD-V enabled in Settings>System>Acceleration in VirtualBox Manager

However running the Intel PIU on the guest machine reports that VT-x is not enabled in the guest. I have read previous posts about this and most have suggested disabling Hyper-V using bcdedit /set hypervisorlaunchtype off. I have done this and bcdedit /enum reports that the status is actually off. Also the guest machine doesn't actually have the Hyper-V role enabled (actually it has no roles enabled).

For various reasons, I don't have the option to completely start a new virtual machine from scratch with a different operating system unless it is really necessary.

Any suggestions on how to get VT-x enabled in the guest machine?


Thanks
Colin

[loukingjr]

you can't nest hypervisors in VirtualBox. Intel HAXM is a hypervisor itself.

if a guest uses VT-x it doesn't "pass through".

[BrainInAJar]

Hello again

you can't nest hypervisors in VirtualBox. Intel HAXM is a hypervisor itself.

Ah. That is a very good point...

I also note that this is a long-requested feature, according to an open feature request, #4032 (I would post a link, in case anyone else finds this thread, but the board software says I'm too much of a n00b to post URLs)
The most recent poster seems to be in the same position as me.

Thanks. Forget I asked

[loukingjr]

No harm in asking. As far as the posting limit of one day. I think it's just to prevent spam etc.