[SRU][Bionic][Cosmic][PATCH 0/1] x86/kvm: fix LAPIC timer drift when guest uses periodic

Joseph Salisbury joseph.salisbury at canonical.com
Fri Jun 29 13:22:52 UTC 2018


BugLink: http://bugs.launchpad.net/bugs/1778486

== SRU Justification ==
This patch fixes a regression introduced by mainline commit
8003c9ae204e in v4.10.  Without this new patch, OpenBSD guests encounter 
timing issues when running under bionic kernel.

See also:
https://www.spinics.net/lists/kvm/msg161311.html

== Fix ==
d8f2f498d9ed ("x86/kvm: fix LAPIC timer drift when guest uses periodic mode") 

== Regression Potential ==
Low.  This fixes a current regression.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.

David Vrabel (1):
  x86/kvm: fix LAPIC timer drift when guest uses periodic mode

 arch/x86/kvm/lapic.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

-- 
2.17.1





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