The fix for bionic:linux-azure is already committed and an official
build was already triggered on the Canonical Kernel Team PPA.

An unofficial test build is also available at
https://kernel.ubuntu.com/~mhcerri/azure/lp1862201/ (with a tarball with
the debian packages available at
https://kernel.ubuntu.com/~mhcerri/azure/lp1862201/linux-
azure_5.0.0-1031.33_debs.tar.gz).

The solution was to revert the blacklist entry from the current version
and divert to another location the .conf files from older kernels that
blacklisted sgx. That means means it's necessary to install the new
version and manually load the sgx module or reboot the system.

The changes are available at: https://git.launchpad.net/~canonical-
kernel/ubuntu/+source/linux-azure/+git/bionic/log/?h=master-next

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Packages, which is subscribed to linux-azure in Ubuntu.
https://bugs.launchpad.net/bugs/1862201

Title:
  module intel_sgx appears to be blacklisted by the kernel.

Status in linux-azure package in Ubuntu:
  Confirmed
Status in linux-azure source package in Xenial:
  In Progress
Status in linux-azure source package in Bionic:
  Fix Committed
Status in linux-azure source package in Eoan:
  In Progress
Status in linux-azure source package in Focal:
  Confirmed

Bug description:
  In the linux-0azure kernel 5.0.0.1029 the intel_Sgx driver has become
  blacklisted. The directories /etc/modlprobe.d and /etc/module_load.d

   systemctl status systemd-modules-load.service

  indicates the driver is blacklisted
  azureuser@brcamp-oe-ubu2:~/Projects/Azure-Compute-OpenEnclave-SecureRepro$ 
systemctl status systemd-modules-load.service
  ● systemd-modules-load.service - Load Kernel Modules
     Loaded: loaded (/lib/systemd/system/systemd-modules-load.service; static; 
vendor preset: enabled)
     Active: active (exited) since Tue 2020-02-04 19:42:29 UTC; 1 day 20h ago
       Docs: man:systemd-modules-load.service(8)
             man:modules-load.d(5)
    Process: 490 ExecStart=/lib/systemd/systemd-modules-load (code=exited, 
status=0/SUCCESS)
   Main PID: 490 (code=exited, status=0/SUCCESS)

  
  This is affecting azure customers.

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