Public bug reported:
Microsoft would like to request commits to enable VM hibernation in the
Azure 5.4 kernels for 18.04 and 20.04.
Some of the commits needed to enable VM hibernation were included in
mainline 5.4 and older. However, 24 commits were added in 5.5 and
later, which are required in the 5.4 kernel. The list of commits
requested are:
38dce4195f0d x86/hyperv: Properly suspend/resume reenlightenment
notifications
2351f8d295ed PM: hibernate: Freeze kernel threads in software_resume()
421f090c819d x86/hyperv: Suspend/resume the VP assist page for hibernation
1a06d017fb3f Drivers: hv: vmbus: Fix Suspend-to-Idle for Generation-2 VM
3704a6a44579 PM: hibernate: Propagate the return value of
hibernation_restore()
54e19d34011f hv_utils: Add the support of hibernation
ffd1d4a49336 hv_utils: Support host-initiated hibernation request
3e9c72056ed5 hv_utils: Support host-initiated restart request
9fc3c01a1fae6 Tools: hv: Reopen the devices if read() or write() returns
05bd330a7fd8 x86/hyperv: Suspend/resume the hypercall page for hibernation
382a46221757 video: hyperv_fb: Fix hibernation for the deferred IO feature
e2379b30324c Input: hyperv-keyboard: Add the support of hibernation
ac82fc8327088 PCI: hv: Add hibernation support
a8e37506e79a PCI: hv: Reorganize the code in preparation of hibernation
1349401ff1aa4 clocksource/drivers/hyper-v: Suspend/resume Hyper-V clocksource
for hibernation
af13f9ed6f9a HID: hyperv: Add the support of hibernation
25bd2b2f1f053 hv_balloon: Add the support of hibernation
b96f86534fa31 x86/hyperv: Implement hv_is_hibernation_supported()
4df4cb9e99f83 x86/hyperv: Initialize clockevents earlier in CPU onlining
0efeea5fb1535 hv_netvsc: Add the support of hibernation
2194c2eb6717f hv_sock: Add the support of hibernation
1ecf302021040 video: hyperv_fb: Add the support of hibernation
56fb105859345 scsi: storvsc: Add the support of hibernation
f2c33ccacb2d4 PCI/PM: Always return devices to D0 when thawing
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1880032
Title:
[linux-azure] Enable Hibernation on The 18.04 and 20.04 5.4 Kernels
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