Azure: Fix the Focal Azure CVM kernel for VBS VMs

[Tim Gardner]

SRU Justification

[Impact]

The latest 5.4-based linux-azure-cvm kernel (https://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-azure/+git/focal/tag/?h=Ubuntu-azure-cvm-5.4.0-1085.90%2bcvm2) works fine when it runs in an AMD SNP VM, but doesn't work when it runs in a VBS VM (for VBS, please refer to https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/oem-vbs)

[Fix]

https://github.com/dcui/linux-azure-cvm/commit/b262b15df05e06be0a43ecc4c72fb3b735a78fe7

[Test Case]

Microsoft tested

[Where things could go wrong]

This could affect regular CVM instances

[Other Info]

SF: #00340455

[Tim Gardner (timg-tpi)]

Patch submitted: https://lists.ubuntu.com/archives/kernel-team/2022-July/131812.html

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-azure-cvm - 5.4.0-1090.95+cvm1

---------------
linux-azure-cvm (5.4.0-1090.95+cvm1) focal; urgency=medium

  * focal/linux-azure-cvm: 5.4.0-1090.95+cvm1 -proposed tracker (LP: #1983916)

  * Azure: Fix the Focal Azure CVM kernel for VBS VMs (LP: #1981328)
    - SAUCE: Drivers: hv: vmbus: Fix the boot issue for VBS Isolated VMs

  [ Ubuntu: 5.4.0-1090.95 ]

  * focal/linux-azure: 5.4.0-1090.95 -proposed tracker (LP: #1983920)
  * focal/linux: 5.4.0-125.141 -proposed tracker (LP: #1983947)
  * nbd: requests can become stuck when disconnecting from server with qemu-nbd
    (LP: #1896350)
    - blk-mq: blk-mq: provide forced completion method
    - blk-mq: move failure injection out of blk_mq_complete_request
    - nbd: don't handle response without a corresponding request message
    - nbd: make sure request completion won't concurrent
    - nbd: don't clear 'NBD_CMD_INFLIGHT' flag if request is not completed
    - nbd: fix io hung while disconnecting device
  * CVE-2021-33656
    - vt: drop old FONT ioctls
  * CVE-2021-33061
    - ixgbe: add the ability for the PF to disable VF link state
    - ixgbe: add improvement for MDD response functionality
    - ixgbevf: add disable link state

 -- Marcelo Henrique Cerri <email address hidden> Tue, 23 Aug 2022 08:57:10 -0300