I have created a vm of dv3 series. But getting vtx is not supported.

Question

And while installing haxm,
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Answer 1

Hello, @Abhijith Sogal !

Nested Virtualization support: Hyper-V vs 3rd party
Nested Virtualization is supported in Dv3 and Ev3 sizes however there is a note that 3rd party virtualization apps other than Hyper-V are not supported and are likely to fail:

https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization#3rd-party-virtualization-apps

3rd Party Virtualization Apps
Virtualization applications other than Hyper-V are not supported in Hyper-V virtual machines, and are likely to fail. This includes any software that requires hardware virtualization extensions.

For a full list of VM sizes that support Nested Virtualization, see the Azure documentation on Azure compute units:

https://learn.microsoft.com/en-us/azure/virtual-machines/acu

Enabling Nested Virtualization
Make sure that Nested Virtualization has been enabled on the VM you are using:

https://learn.microsoft.com/en-us/virtualization/hyper-v-on-windows/user-guide/nested-virtualization#configure-nested-virtualization

Configure Nested Virtualization

1. Create a virtual machine. See the prerequisites above for the required OS and VM versions.
2. While the virtual machine is in the OFF state, run the following command on the physical Hyper-V host. This enables nested virtualization for the virtual machine. Set-VMProcessor -VMName <VMName> -ExposeVirtualizationExtensions $true
3. Start the virtual machine.
4. Install Hyper-V within the virtual machine, just like you would for a physical server. For more information on installing Hyper-V see, Install Hyper-V.

Additional Resources:

• GitHub: Intel HAXM (Hardware Accelerated Execution Manager)
• Wikipedia: VT-x (Intel's technology for virtualization on the x86 platform)