Public bug reported:
SRU Justification
[Impact]
* LP #2069204 disabled CET Shadow Stack on SEV-SNP due to CPUID emulation bug
not being fixed in VMs until October 2024.
* This issue is now fixed, so the patch can be reverted.
[Fix]
* Revert "UBUNTU: SAUCE: x86/hyperv: temporarily disable CET SS on SEV-
SNP due to a paravisor bug"
[Test Plan]
* Compile tested
* Boot tested
* Microsoft tested
[Regression potential]
* Reverting back to previous state, so regression very unlikely.
* Changes isolated, minimal regression risk
[Other info]
* SF #00387447
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-azure (Ubuntu Noble)
Importance: Undecided
Status: New
** Affects: linux-azure (Ubuntu Oracular)
Importance: Undecided
Status: New
** Also affects: linux-azure (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-azure (Ubuntu Oracular)
Importance: Undecided
Status: New
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2079841
Title:
Revert fix for "Kernel fails to enable XSAVE when running in a “v5”
AMD SEV-SNP VM"
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