Provide mode where all vCPUs on a core must be the same VM
Bug #1792956 reported by
bugproxy
This bug report is a duplicate of:
Bug #1792957: Provide mode where all vCPUs on a core must be the same VM.
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This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| linux (Ubuntu) |
New
|
Undecided
|
Ubuntu on IBM Power Systems Bug Triage | ||
Bug Description
== Comment: #0 - Leonardo Augusto Guimaraes Garcia <email address hidden> - 2018-09-13 07:10:53 ==
+++ This bug was initially created as a clone of Bug #171443 +++
Please, add the following patch:
http://
which adds a mode where all vCPUs on a core must be the same VM on POWER8 and POWER9.
This is intended for use in security-conscious settings where users are concerned about possible side-channel attacks between threads which could perhaps enable one VM to attack another VM on the same core, or the host.
| tags: | added: architecture-ppc64le bugnameltc-171447 severity-medium targetmilestone-inin1810 |
| Changed in ubuntu: | |
| assignee: | nobody → Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) |
| affects: | ubuntu → kernel-package (Ubuntu) |
Revision history for this message
| bugproxy (bugproxy) wrote Comment bridged from LTC Bugzilla | #1 |
Revision history for this message
| Frank Heimes (fheimes) wrote | #2 |
| affects: | kernel-package (Ubuntu) → linux (Ubuntu) |
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------- Comment From <email address hidden> 2019-01-21 14:05 EDT-------
This is in the cosmic 4.18 kernel. Breno tried this in bug 171449 (lp 1792957) and that one is fix released, I think this can be the same.