Ubuntu
linux-intel package

[SRU]TDMR reserved areas that may exceed the limit of 16 can result in TDX module initialization failure

Bug #2072717 reported by Bun K Tan
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
The Kobuk project
New
Undecided
Unassigned
linux-intel (Ubuntu)
New
Undecided
Unassigned
Noble
Fix Committed
Undecided
Thibf

Bug Description

[ Impact ]

Failure to initialize TDX on Emerald Rapids platform.

[ Fix ]

Specific backport made by intel for 6.8.
Hosted privately on https://github.com/intel/kernel-downstream

[ Test Plan ]

Initialize TDX and verify it comes online.
Tested successfully by the user.

[ Where problems could occur ]

Regression in TDX module.

[ Other Info ]

Initial bug report : https://github.com/canonical/tdx/issues/135

See original description
Bun K Tan (bktan1)
information type: Private → Public
Revision history for this message
Thibf (thibf) wrote (last edit ):

Patch submitted to the mailing list : https://lists.ubuntu.com/archives/kernel-team/2024-July/152146.html

Changed in linux-intel (Ubuntu Noble):
status: New → In Progress
assignee: nobody → Thibf (thibf)
Thibf (thibf)
description: updated
Thibf (thibf)
Changed in linux-intel (Ubuntu Noble):
status: In Progress → Fix Committed
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-intel/6.8.0-1009.16 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-noble-linux-intel' to 'verification-done-noble-linux-intel'. If the problem still exists, change the tag 'verification-needed-noble-linux-intel' to 'verification-failed-noble-linux-intel'.

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-noble-linux-intel-v2 verification-needed-noble-linux-intel
Thibf (thibf)
summary: - TDMR reserved areas that may exceed the limit of 16 can result in TDX
- module initialization failure
+ [SRU]TDMR reserved areas that may exceed the limit of 16 can result in
+ TDX module initialization failure
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote :

This bug is awaiting verification that the linux-ibm-gt-tdx/6.8.0-1009.10+tdx1 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-noble-linux-ibm-gt-tdx' to 'verification-done-noble-linux-ibm-gt-tdx'. If the problem still exists, change the tag 'verification-needed-noble-linux-ibm-gt-tdx' to 'verification-failed-noble-linux-ibm-gt-tdx'.

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-noble-linux-ibm-gt-tdx-v2 verification-needed-noble-linux-ibm-gt-tdx
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