kpti must be disabled on ThunderX systems

Bug #1749776 reported by dann frazier
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
High
Unassigned
Artful
Undecided
Unassigned

Bug Description

Our arm64 kpti backport is missing a series that disables KPTI on ThunderX platforms. KPTI is not necessary on this system, and it can lead to icache corruption:
http://lists.infradead.org/pipermail/linux-arm-kernel/2018-January/556304.html

dann frazier (dannf)
Changed in linux (Ubuntu):
status: New → Confirmed
Changed in linux (Ubuntu):
importance: Undecided → High
status: Confirmed → Triaged
dann frazier (dannf)
Changed in linux (Ubuntu Artful):
status: New → In Progress
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