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Questions tagged [intel-vt-x]

28 questions
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Enabling hardware virtualisation BIOS; anything to beware?

A lot of recent virtualisation tools can either make use of, or demand, BIOS support (Intel-VT, AMD-V, etc). But in most of the BIOS screens I've seen, it has been disabled by default - sometimes even with fairly non-subtle (but vague) warnings. So:…
Marc Gravell
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Does VMWare Player 3.0 require Intel-VT capable processor

I have Dell Studio laptop with Intel E6600 processor, I have checked and confirmed that this processor does not have Intel-VT support. (Its available in 6670 available on Dell Vostro) Has anyone practially used VMWare Player 3.0 on a machine/laptop…
Binoj Antony
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Proxmox KVM fails to start

My new server is Fujitsu Primergy RX1330 M1 with Intel® Xeon® Processor E3-1220, running either Proxmox V4 or Proxmox V3.4 i have the following problem. When i create a new virtual machine, during the start of the VM i get the error : TASK ERROR:…
Dimitris Sapikas
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Is it possible to run nested VMs with in VMWare Workstation without Intel VT-x?

I need to fiddle with ESXi inside a VMware workstation 9 Virtual machine but my old Intel Core 2 Duo T6400 does not have Intel VT-x hardware assist technology! Is there any mean to run a bare-metal hypervisor in a virtual machine without Intel VT-x…
Chedy2149
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3 answers

Disable ESXi passthrough on SATA controller

I have a newly built ESXi server with two SSD's hooked up to the motherboard primary SATA controller. Everything was working until I made the mistake of enabling passthrough on that SATA controller. Now, ESXi will reboot & come up complaining it…
churnd
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Intel NIC: VMDc or VMDq?

I need to buy a nic that I want to eventually (~3 months) re-use for a VM server deployment that will need to support heavy network I/O. Server is a Xeon Gulftown/Westmere-EP. Intel has server NICs that support VMDc, VMDq, or both. Which is the…
nonot1
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If KVM is working, why does VMX show as disabled?

I have VT-x enabled in the BIOS. I'm running qemu/kvm/Manjaro. lscpu says $ lscpu Architecture: x86_64 Model name: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz Flags: ... vmx ... Virtualization features: Virtualization: …
Reinderien
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How do you make use of VT-d features other than PCI passthrough?

I did some research and from what I can tell the main feature that VT-d provides is PCI passthrough. https://en.wikipedia.org/wiki/X86_virtualization#Graphics_Virtualization_Technology_(Intel_GVT-d,_GVT-g_and_GVT-s) An input/output memory…
catanman
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Performance impact enabling intel vt-x

I have a rather unusual question: What is the performance impact when you enable vt-x and you don't need it? I ask this because all of the new servers I receive have this enabled by default in the BIOS and I wonder if this has any impact at all on…
timmeyh
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1 answer

Activate Intel VT-d in the kernel on CentOS7

Following many tutorials, they ask you to alter the grup file at the /boot/grup/grup.conf.. but in Centos7 there is no /boot/grup/grup.conf ... Activate Intel VT-d in the kernel Activate Intel VT-d in the kernel by appending the intel_iommu=on…
Ibrahim Buamod
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Why do KVM needs Hardware Assisted support to install even Linux based OS

For XEN we dont need Hardware Assisted support for running linux os. But why do we need that for KVM for running even linux based os. Can Kvm be configured to support para virtualization. Edit: With full virtualization guests may not be aware that…
Kevin Parker
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4 answers

CPU - Virtualization Technology (Intel VT) in a Laptop

I have a Dell laptop I bought in 2006 and it has Virtualization Technology option in the BIOS. My CPU is an Intel T7200. For me, the VT option is used to use ESXi or Hyper-V on a machine, but on a laptop? What does the VT option does in a laptop?
Jonathan Rioux
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Can you have CPU VT-x enabled on a VPS?

I'm using a VPS server on Ubuntu 17.04, from these guys I'd like to install some components but it requires CPU Virtualisation to be enabled. Question 1: Is it possible to have CPU VT-x enable for a VPS? Question 2: If yes, is it common for VPS…
Cristian E.
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How can I determine the performance penalty of VT-d vs. baremetal?

I am looking to configure my server in a slight odd way to create a private cloud setup. I have to take the HBA that my storage disks are tied to and pass it into a VM (probably xen) to allow the creation of a vSAN type setup. I want to do this so I…
ianc1215
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Bloomfield CPU without Intel VT-x

According to my research an Intel Bloomfield CPU (more specific: a i7-920) should support Intel VT-x technology (http://ark.intel.com/products/37147/Intel-Core-i7-920-Processor-8M-Cache-2_66-GHz-4_80-GTs-Intel-QPI) but under linux /proc/cpuinfo does…
posi
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