Patch request submitted:
https://lists.ubuntu.com/archives/kernel-team/2022-March/thread.html#128697
Updating status to 'In Progress'.
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: ubuntu-z-systems
Status: New => In Progress
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Canonical Kernel Team (canonical-kernel-team)
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/1929060
Title:
[22.04 FEAT] smc: Add User-defined EID (Enterprise ID) Support -
kernel
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
Add a tool, tentatively titled smc_eid, to display and set EIDs. Should
indicate SEIDs as such.
Notes:
* EIDs are uppercase only - we should silently convert to all uppercase
* Check latest SLD for valid special characters.
* Make sure only authorized users are allowed to modify EIDs - reading is OK
for everybody, but writing requires authorization.
* SEIDs can be disabled, but (obviously) not set.
* EID config must be available on module load.
* zOS sets the UEIDs globally, i.e. not separate SMC-D and SMC-R.
Business Case: Required for users that need to strictly
separate/prevent certain OS images from utilizing ISM devices for
communication (Security). Furthermore, z/OS disables SEID per default,
and will likely have users utilize fine-grained EIDs. Hence we need to
be able to support UEIDs for compatibility.
This feature is for the kernel part.
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