Scenario: A Citrix Architect is designing a XenDesktop environment. The Engineer group requires the use of NVIDIA hardware with shared virtualized GPUs due to their use of graphical applications. Management wants to use the following components within the XenDesktop environment to meet these requirements:
NVIDIA GRID Tesla M60 GPUs

Microsoft Hyper-V Server 2012 R2

Windows 7 virtual machines

XenDesktop LTSR 7.15

Which component must the architect change in order to implement this use case?