Azure: PCI: Fix synchronization

[Tim Gardner]

SRU Justification

[Impact]

Microsoft has asked that the following commits be added to fix some Hyperv PCI synchronization issues.

2022-05-13
PCI: hv: Fix synchronization between channel callback and hv_pci_bus_exit()
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=b4927bd272623694314f37823302f9d67aa5964c

2022-04-25
PCI: hv: Fix synchronization between channel callback and hv_compose_msi_msg()
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=a765ed47e45166451680ee9af2b9e435c82ec3ba

2022-04-25
Drivers: hv: vmbus: Introduce {lock, unlock}_requestor()
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=b91eaf7267cf7aec0a4e087decf7770dfb694d78

2022-04-25
Drivers: hv: vmbus: Introduce vmbus_request_addr_match()
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=0aadb6a7bb811554cf39318b5d18e8ec50dd9f02

2022-04-25
Drivers: hv: vmbus: Introduce vmbus_sendpacket_getid()
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=b03afa57c65e1e045e02df49777e953742745f4c

2022-04-25
PCI: hv: Use vmbus_requestor to generate transaction IDs for VMbus hardening
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v6.0-rc5&id=de5ddb7d44347ad8b00533c1850a4e2e636a1ce9

[Test Plan]

Boot tested, Microsoft tested

[Where things could go wrong]

Hyperv drivers could fail to load correctly.

[Other Info]

SF: #00345197

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1991134

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Tim Gardner (timg-tpi)]

Patches submitted: https://lists.ubuntu.com/archives/kernel-team/2022-September/133524.html

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is awaiting verification that the linux-azure/5.15.0-1023.29 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-jammy' to 'verification-done-jammy'. If the problem still exists, change the tag 'verification-needed-jammy' to 'verification-failed-jammy'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!