This bug is awaiting verification that the linux-gcp/6.5.0-1018.18
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-mantic-linux-gcp' to 'verification-done-mantic-
linux-gcp'. If the problem still exists, change the tag 'verification-
needed-mantic-linux-gcp' to 'verification-failed-mantic-linux-gcp'.


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!


** Tags added: kernel-spammed-mantic-linux-gcp-v2 
verification-needed-mantic-linux-gcp

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Packages, which is subscribed to linux-gcp in Ubuntu.
https://bugs.launchpad.net/bugs/2001605

Title:
  Add support for SEV-SNP

Status in linux-gcp package in Ubuntu:
  New
Status in linux-gcp source package in Jammy:
  Fix Released

Bug description:
  Version 3 of AMD's Secure Encrypted Virtualization is called SNP
  (Secure Nested Pages). Support for this has been added to the kernel,
  mostly in v5.19 with some prerequisites from v5.16. This feature is
  requested to be backported to Jammy (5.15).

  More information at
  https://canonical.lightning.force.com/lightning/r/Case/5004K00000EA2meQAD/view

  
  [Impact]
  No support for SEV-SNP on AMD EPYC2 CPUs currently

  [Fix]
  Add SEV-SNP support patches.

  [Test]
  Extensive testing by the cloud team over several months, testing general 
functionality under SEV-SNP.

  [Regression Potential]
  This was never working so there should be no risk of regression for 
SEV-SNP.As it does change those files it can have an effect on existing SEV 
functionality in case of a bug. The code is limited so no regression outside of 
SEV is expected.

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