Patch submitted: https://lists.ubuntu.com/archives/kernel-
team/2025-April/158759.html
** Changed in: linux-intel (Ubuntu Noble)
Status: New => In Progress
** Description changed:
[ Impact ]
* Expose upper limit of TDs through cgroup v2 misc subsystem.
[ Fix ]
* Backport submission :
https://lore.kernel.org/all/[email protected]/
[ Test Plan ]
* Compiled and Tested on TDX supported hardware by:
- Enabling TDX support (procedure described in
https://github.com/canonical/tdx)
- `sudo mount -t cgroup2 none mnt/`
- Check mnt/misc.capacity for a TDX entry
+ - Check mnt/misc.current for TDX usage when starting a TD
[ Where problems could occur ]
* Regression in confidential TDX subsystem
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Packages, which is subscribed to linux-intel in Ubuntu.
https://bugs.launchpad.net/bugs/2104946
Title:
Register TDX host key IDs to cgroup misc controller
Status in linux-intel package in Ubuntu:
New
Status in linux-intel source package in Noble:
In Progress
Status in linux-intel source package in Oracular:
New
Bug description:
[ Impact ]
* Expose upper limit of TDs through cgroup v2 misc subsystem.
[ Fix ]
* Backport submission :
https://lore.kernel.org/all/[email protected]/
[ Test Plan ]
* Compiled and Tested on TDX supported hardware by:
- Enabling TDX support (procedure described in
https://github.com/canonical/tdx)
- `sudo mount -t cgroup2 none mnt/`
- Check mnt/misc.capacity for a TDX entry
- Check mnt/misc.current for TDX usage when starting a TD
[ Where problems could occur ]
* Regression in confidential TDX subsystem
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-intel/+bug/2104946/+subscriptions
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