[SRU][Artful][Bionic][PATCH 0/1] KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN
joseph.salisbury at canonical.com
Fri Mar 23 20:03:02 UTC 2018
== SRU Justification ==
All KVM guest cpu utilization is being reported as sys% time in the host.
It turns out Guest time accounting (CONFIG_VIRT_CPU_ACCOUNTING_GEN) has
been broken since v4.13 by commit 8b24e69fc47e436.
Commit 61bd0f66ff92 fixes this bug and is included in mainline as of v4.16-rc5.
The commit was cc'd to upstream stable, but has not yet landed in upstream 4.15.
== Fix ==
61bd0f66ff92 ("KVM: PPC: Book3S HV: Fix guest time accounting with VIRT_CPU_ACCOUNTING_GEN")
== Regression Potential ==
Low. Also cc'd to stable, so it has had additionl upstream review. Limited to powerpc.
== 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.
Laurent Vivier (1):
KVM: PPC: Book3S HV: Fix guest time accounting with
arch/powerpc/kvm/book3s_hv.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
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