Function: Dedicated GPU ( Disable )

by Simon Sparks · 20 February 2026

To use this function add it to the class library file named PluginVCVirtualMachineService.ts

GitHub Repository: https://github.com/SimonSparksUK/Orchestrator

Filename: PluginVCVirtualMachineService.ts

Description: Disable a dedicated GPU on a vCenter Virtual Machine

Public Function: GPUPassthroughEnable

public GPUPassthroughDisable(objVcVirtualMachine: VcVirtualMachine, strVendorID: string, strDeviceID: string): boolean {

    let objVcVirtualPCIPassthrough: VcVirtualPCIPassthrough = this.buildVcVirtualPCIPassthrough(strVendorID, strDeviceID);

    let objVcVirtualDeviceConfigSpec: VcVirtualDeviceConfigSpec = this.VcVirtualDeviceConfigSpecCreate(objVcVirtualPCIPassthrough, VcVirtualDeviceConfigSpecOperation.remove);

    let arrVcVirtualDeviceConfigSpec: VcVirtualDeviceConfigSpec[] = [];
    arrVcVirtualDeviceConfigSpec.push(objVcVirtualDeviceConfigSpec);

    let intMemoryGB: number = parseInt(objVcVirtualMachine.memory);

    let objVcResourceAllocationInfo: VcResourceAllocationInfo = new VcResourceAllocationInfo();
    objVcResourceAllocationInfo.reservation = 4096;     // TO DO - SS - Get this value from the VcVirtualMachine

    let objVcVirtualMachineConfigSpec: VcVirtualMachineConfigSpec = new VcVirtualMachineConfigSpec();
    objVcVirtualMachineConfigSpec.memoryAllocation = objVcResourceAllocationInfo;
    objVcVirtualMachineConfigSpec.deviceChange = arrVcVirtualDeviceConfigSpec;
    objVcVirtualMachineConfigSpec.memoryReservationLockedToMax = false;

    let blnReturn: boolean = this.Reconfigure(objVcVirtualMachine, objVcVirtualMachineConfigSpec);

    return blnReturn;
}
TypeScript

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