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Questions tagged [vt-d]

28 questions
35
votes
4 answers

Should I enable Intel Virtualization and VT-d?

I have an Intel Core Duo P8600 and use Virtualbox. Virtual box some settings about virtualization. My question is should I enable Intel Virtualization and VT-d? I found that they were both disabled. Is there any harm in enabling them? I have…
webdtc
  • 553
11
votes
1 answer

Implementing PCI-Passthrough with Linux-KVM on Debian

I am attempting to use PCI-Passthrough to attach an old video card (Radeon 4770) to a virtual machine. I am using Linux-KVM to run my virtual machines on a Debian Linux (Wheezy, 3.2.0-4-amd64) host. Question To clarify, I am not sure what the…
shelladept
  • 111
7
votes
1 answer

What Hypervisor/GPU can be used for gaming under a virtualized environment?

My motherboard is the "Z68 Extreme7 Gen3", and it supports VT-d. I also have an i3, that also supports VT-d. I would like to play games under a virtualized environment using graphics card passthrough. What Hypervisor and GPU support this? Is this…
cedivad
  • 292
6
votes
3 answers

Advantages of TXT/VT-d in new Intel CPUs

I am going to buy a new CPU. I have Intel Core 2 duo 4300. I've already chosen Intel i5-2500/i5-2500k (Sandy Bridge) as my new target CPU. I've read a lot of details about Sandy Bridge family, P67/H67 chipsets. My question is about TXT/VT-d. As…
Krzysztof Szynter
  • 763
5
votes
1 answer

VM: Mac OSX Host, Windows Guest: Use VT-d so that the fast GPU is available for the VM?

Vt-d is enabled in recent MacBook Pros, but I did not find any information on actual gpu sharing. Is it possible to set up a MacBook Pro with two GPUs (Intel, nVidia or AMD) so that I can use the fast GPU in a windows guest for graphics development…
Wilbert
  • 185
5
votes
2 answers

Failed to open a session for the virtual machine (VirtualBox)

Was not using VirtualBox for some time and now found that it stopped working (as usual). When running, the following error appears Some details VT-d is enabled in BIOS Host system is Windows 8 Version of Text Version Failed to open a session for…
Dims
  • 13,414
5
votes
1 answer

Windows 8 freezes on startup when intel VT-d is enabled

I don't know what to make of this situation: Windows 8 freezes after about 3 seconds after booting to the log in screen. The only way i have been able to avoid the freeze, is if i set VT-d disabled VT-d enabled, but Nvidia drivers uninstalled…
John Nevermore
  • 209
4
votes
1 answer

Enabling VT-d on a Haswell 4770k

Well, don't I feel like a sucker. I built a new Haswell box since my old computer was positively ancient. I built it with the explicit intention of using both virtualization and maybe even trying out TSX. Imagine my surprise when, just after the…
Steven Schlansker
  • 219
4
votes
1 answer

Enabling Intel VT-d in the BIOS causes sound to fail

I have a Gigabyte GA-X79-UD3 motherboard and when I activate VT-d in the BIOS, I no longer get sound. What can I do to avoid this problem?
Bruno
  • 41
3
votes
0 answers

Intel Virtualization Technology (VT-x) just won't turn on

I set the VT-x = enabled in BIOS and still Intel Processor Identification Utility reports that VT is not available. VirtualBox refuses to show options for 64-bit OS as well. My processor clearly supports VT. In fact I'd it working with VirtualBox…
Shital Shah
  • 236
  • 1
  • 8
3
votes
2 answers

Does SR-IOV require VT-d?

I am trying to use SR-IOV on VMware vSphere 6 with Intel I350-T4 NIC (supports SR-IOV). The CPU does not support VT-d, can I still use SR-IOV? What can I use to check if BIOS has enabled SR-IOV?
sdaffa23fdsf
  • 377
2
votes
1 answer

VM: Windows 7 host, Linux guest, VT-d?

I am sick of the driver issues of Linux. So I am planning to switch to Windows 7 as a host and virtualize my Linux into it. My laptop has integrated Intel graphics and supports VT-d. For speed reasons I would like to assign that card to Linux. Now,…
user41259
2
votes
1 answer

Is Intel VT-d at all useful if direct device attachement is not required?

It seems that one disadvantage of Intel i3 processors versus their more capable i5 and i7 brothers is the consistent lack of VT-d support. I understand the basics of IOMMU hardware and how it would benefit people that want their virtual machines to…
thkala
  • 2,129
2
votes
1 answer

VirtualBox Nvidia GPU passthrough - disguise VM

Host: Debian 10 Guest: Windows 10 Hypervisor: Virtualbox 6.0.x GPU: Nvidia Quadro 5000 Long story short: VT-d compatible chipset, IOMMU enabled, PCI-passthrough enabled, etc., and I as far as the point where guest Windows detects the graphics card…
seamux
  • 31
  • 1
  • 3
2
votes
0 answers

How to tell if MacBook supports VT-d?

I am running Ubuntu 16.04 on MacBookAir6,2 with Core-i7-4650U CPU and trying to enable VT-d/IOMMU so that I could passthrough hardware to virtual machines (QEMU/KVM). According to the CPU spec, VT-d is supported. So I added intel_iommu=on to the…
Greendrake
  • 901
1
2