390.25 on Ubuntu 16.04.4 LTS, 4.4.0-1052-aws kernel: Unable to make nvidia-smi work

I have tried various times to uninstall and reinstall in different ways, but I haven’t been able to get nvidia-smi to work yet.
I am trying to run cuda on aws with Ubuntu 16.04. The process for the last installation is listed below. I have also tried with the driver 390.30 which was recommended for Tesla M60, but also didn’t work. Can anyone tell me what I am doing wrong?

Pre-installation Actions:

$ lspci | grep -i nvidia
00:1e.0 VGA compatible controller: NVIDIA Corporation GM204GL [Tesla M60] (rev a1)

$ uname -m && cat /etc/*release
x86_64
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION=“Ubuntu 16.04.4 LTS”
NAME=“Ubuntu”
VERSION=“16.04.4 LTS (Xenial Xerus)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=“Ubuntu 16.04.4 LTS”
VERSION_ID=“16.04”
HOME_URL=“http://www.ubuntu.com/
SUPPORT_URL=“http://help.ubuntu.com/
BUG_REPORT_URL=“http://bugs.launchpad.net/ubuntu/
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial

$ gcc --version
gcc (Ubuntu 5.4.1-2ubuntu1~16.04) 5.4.1 20160904
Copyright © 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ uname -r
4.4.0-1052-aws

The kernel headers and development packages were all updated beforehand

Installation Actions:

sudo apt-get purge nvidia*
sudo apt-get purge cuda*

sudo apt-get install nvidia-390
wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/cuda-repo-ubuntu1604_9.1.85-1_amd64.deb
sudo dpkg -i cuda-repo-ubuntu1604_9.1.85-1_amd64.deb
sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/7fa2af80.pub
sudo apt-get update
sudo apt-get install cuda cuda-drivers

sudo reboot

Post-installation:

$ lspci -k
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
Subsystem: Red Hat, Inc Qemu virtual machine
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
Subsystem: Red Hat, Inc Qemu virtual machine
00:01.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II]
Subsystem: XenSource, Inc. 82371SB PIIX3 IDE [Natoma/Triton II]
Kernel driver in use: ata_piix
00:01.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)
Subsystem: Red Hat, Inc Qemu virtual machine
00:02.0 VGA compatible controller: Cirrus Logic GD 5446
Subsystem: XenSource, Inc. GD 5446
Kernel modules: cirrusfb
00:03.0 Ethernet controller: Device 1d0f:ec20
Kernel driver in use: ena
Kernel modules: ena
00:1e.0 VGA compatible controller: NVIDIA Corporation GM204GL [Tesla M60] (rev a1)
Subsystem: NVIDIA Corporation GM204GL [Tesla M60]
Kernel modules: nvidia_390, nvidia_390_drm
00:1f.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01)
Subsystem: XenSource, Inc. Xen Platform Device
Kernel driver in use: xen-platform-pci

$ nvidia-smi
NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

Note:

Kernel driver in use: xen-platform-pci

Xen isn’t using the NVIDIA driver even if the host is.