[Horizon View]How to configure RHEL 6.7 for vDGA

1. Enable DirectPath I/O for NVIDIA GRID GPUs on a Host


2. Power off  virtual machine and Add a vDGA pass-Through Device to a RHEL 6.7 Virtual Machine. 
    2.1 Add New device and select PCI Device and click Add
    2.2 Select PCI device from the drop-down menu
    2.3 Click Reserve all memory
    2.4 Click OK

    2.5 Power on and to the virtual machine

3. Install NVIDIA Display Driver on RHEL 6.7 and Horizon View Agent
    3.1 Disable and blacklist the default NVIDIA Nouveau driver
        a. Edit /boot/grub/grub.conf
        b. Add rdblacklist=nouveau line at the end of the module (This is different with setting guide)       
        c. Edit /etc/modprobe.d/blacklist.conf
        d. Add blacklist nouveau line anywhere in the blacklist.conf file
        e. Restart the virtual machine and verify that the Nouveau driver is disabled.

If the grep search does not return results, the ouveau driver is disabled.

    3.2 Upload NVIDIA driver and Horizon View Agent to virtual machine
        a. Run init 3 command to disable X Windows 
        b. For vDGA, add execute and run NVIDIA-Linux-x86_64-version.run


        c. Accept the NVIDIA software license  aggreement


        c. Select No for install 64-bit libraries

        d. Select Yes for run nvidia-xconfig utility

        e. Click OK to close installation.

        f. Install Horizon View Linux Agent manually.

4. Verify That the NVIDIA Display Driver Is Installed
    4.1 Restart the Linux virtual machine - The View Agent startup script initializes the X server and display topology and you can no longer view the virtual machine display in the vSphere console
    4.2 Add Linux virtual machine to Pool and add user into entitlement
    4.3 From Horizon Client, connect to the Linux desktop
    4.4 Open a terminal window and run the glxinfo | grep NVIDIA command