Unable to add NVIDIA vGPU as a PCI device to a Windows 11 VM. There are existing virtual machines working with the similar setup .
It is not a Nested Virtualization environment, and GPU is not configured as Passthrough device on ESXi Hosts in vSphere Cluster.
VMware vSphere ESXi 7.x , 8.x
VMware vCenter Server 7.x , 8.x
Virtual Machine Guest OS Windows 11
In Windows 11, Virtualization-based Security (VBS) is enabled by default and this requires Virtualization-based security (VBS) is a security feature in Windows that isolates system components in a virtualized environment to enhance protection against malicious code and attacks.
Virtualization-based Security (VBS) leverages hardware virtualization and Input/Output Memory Management Unit (IOMMU) features to enhance protection of critical system components by enabling isolation of hardware like GPUs.
Uncheck the box to disable VBS under VM options and then disable Hardware virtualization and I/O MMU features under CPU settings of the VM.
Add vGPU device to the VM and Power-On. See Add an NVIDIA GRID vGPU to a Virtual Machine