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[SRU,Xenial,0/1] Fixes for LP#1714859

Message ID 20170904233905.20352-1-dja@axtens.net
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Series Fixes for LP#1714859 | expand

Message

Daniel Axtens Sept. 4, 2017, 11:39 p.m. UTC 
[SRU Justification]

[Impact]
ppc64le system OOPSes shortly after boot when KVM guests are started.

[Fix]
Cherry-pick patch e47057151422a67ce08747176fa21cb3b526a2c9

[Testcase]
Tested at IBM - boot a machine with a KVM guest configured to start at
boot. Without this patch, observe OOPS, with this patch, observe no
OOPS.

[Regression Potential]
Patch is contained in arch/powerpc; so regression potential limited to
that arch. Patch accepted to kernel stable trees, suggesting others
also believe it to be of low risk.

[Notes]
Not applicable to Zesty (as far as I can tell) as Zesty hasn't pulled
in 46a704f8409f7 ("KVM: PPC: Book3S HV: Preserve userspace HTM state
properly")

Paul Mackerras (1):
  KVM: PPC: Book3S HV: Enable TM before accessing TM registers

 arch/powerpc/kvm/book3s_hv.c | 2 ++
 1 file changed, 2 insertions(+)