This bug was fixed in the package linux-gcp - 5.4.0-1087.95
---------------
linux-gcp (5.4.0-1087.95) focal; urgency=medium
* focal/linux-gcp: 5.4.0-1087.95 -proposed tracker (LP: #1983926)
* Backport patches needed to allow live migration under SEV (LP: #1984034)
- KVM: X86: Introduce KVM_HC_MAP_GPA_RANGE hypercall
- x86/kvm: Add AMD SEV specific Hypercall3
- mm: x86: Invoke hypercall when page encryption status is changed
- EFI: Introduce the new AMD Memory Encryption GUID.
- x86/kvm: Add guest support for detecting and enabling SEV Live Migration
feature.
- x86/kvm: Add kexec support for SEV Live Migration.
[ Ubuntu: 5.4.0-125.141 ]
* 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
-- Khalid Elmously <khalid.elmou...@canonical.com> Wed, 17 Aug 2022
23:55:02 -0400
** Changed in: linux-gcp (Ubuntu Focal)
Status: New => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-33061
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-33656
** Changed in: linux-gcp (Ubuntu Jammy)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1984034
Title:
Backport patches needed to allow live migration under SEV
Status in linux-gcp package in Ubuntu:
New
Status in linux-gcp source package in Focal:
Fix Released
Status in linux-gcp source package in Jammy:
Fix Released
Bug description:
https://canonical.my.salesforce.com/5004K000009oeuI
Upstream (v5.16) patches needed to allow live migration of
confidential VMs.
[Impact]
No support for live-migration of confidential VMs currently
[Fix]
Backport 5 patches from v5.16
[Test]
GCP confirmed that live-migration works with these patches.
[Regression Potential]
This was never working so there should be low risk of regression.
Most of the changes are KVM-related so could have an impact on KVM.
However most of the changes are new code so risk is low.
More details in the SF case.
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