What Is Amd-V (Amd Virtualization) -Explained In Detail

Virtualization is a set of hardware features that improves the performance of virtualization software. This software is used to run applications or operating systems in a virtual machine.

What is Amd – V?

Amd-V or Amd virtualization is a set of free extensions for X86 processor architecture. AMD or Advanced Micro Dynamics has designed the extensions to perform repetitive tasks normally performed by software and improve the resource use and the performance of virtual machine.

Earlier the virtualization efforts relied on software emulation to replace the functionality of hardware. The software emulsion can sometimes be slow and becomes inefficient to process. Due to which many virtualization tasks were handled by software. The behaviors of VM and resource control were most of the time poor which resulted in unacceptable performance of VM on the server.

The processor is lacking the internal microcode to handle intensive virtualization in hardware. The processor extension traps and emulation of virtualization, tasks through the operating system were essentially eliminated which vastly improves the performance of VM on the physical server.

The AMD virtualization technology was first announced in the year 2004 and was added to AMDs pacifica 64 bit * 86 processor designs. By 2006 AMDs athalon 64 X2 and Athalon FX processor appeared with AMD –V technology and today the technology is available on Turion 64 X2, second and third generation opteron, Phenom and Phenom 2 processor.

Features of Amd – Virtualization

The Amd virtualization has many features available. Below the features of Amd – virtualization has been mentioned.

  1. Amd – virtualization allows a guest virtual machine to run at run at different levels in the processor that enables proper operation.
  2. It has the potential to improve the performance of operating system.
  3. Amd – virtualization has a processor features that enable the virtualization of I/O resources.

How to Enable Virtualization Extension in Bios?

Here we have the step by step guide on how to enable virtualization extension in Bios.

Step 1: Reboot your computer and open the Bios menu of your system. This can be even more easily by pressing delete key, F1 key, or Alt and F4 keys depending on your system.

Step 2: Select restore defaults or restore optimized defaults and then select save and exit.

Step 3: Power off the system and disconnect the power supply.

Step 4: Enabling the virtualization extension in Bios

  • Power on your system and open the Bios as shown in step 1.
  • Open the processor and sub menu. The processor settings menu may be hidden in the chipset, Advanced CPU configuration or North Bridge.
  • Enable Intel virtualization technology or AMD – V depending upon brand of the processor. The virtualization extension may be labeled as virtualization extension, Vander pool or various other names depending upon OEM and system Bios.
  • Enable Intel VTd or AMD IOMMU, if the options are available. Intel VTd or AMD IOMMU is used for PCI pass through.
  • Select on save and then exit.

Step 5: Power off the system and disconnect the power supply.

Step 6: Run cat /Proc/ cpuinfo | grep vmx svm. If the command output is like this than the virtualization extensions are enabled. If there is no output than your system may not have the virtualization settings or the correct Bios settings enabled.

How to Enable Intel VT-X and Amd Virtualization on VMware?

Step 1: To enable Intel VT-X and Amd virtualization on VMware, you just need to open VMware and select the virtual machine you want to enable Intel or Amd virtualization and then click on edit virtual machine settings.

Step 2: Now select the processor option and you will see the Intel VT-X and Amd virtualization enabling option besides and mark according to your wish. Also if you want to let the virtualization engine by default, the automatic option uses the three options there when required and disable them when they are not needed.

How to Enable VT-X or Amd Virtualization on Virtual Box?

Here we have the step by step guide that will help you to enable VT-X or Amd virtualization on virtual box. Follow the step by step guide given below.

Step 1: Open virtual box and select the virtual machine you want to enable Intel Amd virtualization on and click on settings.

Step 2: Now, select the system tab and select acceleration tab then you will be able to see and enable Intel VT-X or Amd virtualization on virtual box.

Advantages of Amd Virtualization

Amd virtualization is used to run application on operating system in a virtual machine and it provides many advantages. Some of the advantages of Amd virtualization are mentioned below:

  1. It has ability to have multiple/ different operating systems simultaneously running on the same computer. This capability makes it easier to establish multiple operating system environment required for software products development, testing and support. It can also be used to combine multiple servers on one single server and hence saving the hardware costs.
  2. Increased system security and reliability due to virtual machine environment being completely different from the host operating system.

How to Fix the Errors of Amd- Virtualization Hardware Acceleration?

Below we have mentioned how to fix the errors of Amd virtualization hardware acceleration. These errors generally occur during the operating system installation in the system and immediately after the new VM.

  1. Virtualization Instructions and Compatibility

If your virtual box is running on a box with an Intel CPU then download and install the CPU-Z tool. Ensure that VT-x has been listed in the instruction pane. If not then it is necessary for you to change the BIOS settings.

For the machines that are based with AMD has to download the Amd virtualization technology and Microsoft Hyper-V system compatibility check utility. This tool allows checking whether your machine is Hyper –V compatible or not.

  • BIOS settings

Double check the BIOS settings to ensure your machines CPU and chipsets are properly configured. The following screenshots show the BIOS menus and enabled virtualization settings that are commonly found on Intel and Amd systems.

  • Update BIOS and check Vbox.log

If all the methods fail then just give a try to this method by updating BIOS firmware. By updating BIOS you surely would solve some of the problems.

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