From 563a1e93afac4d2c135072461fbab418b9dff43f Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Thu, 16 Jul 2015 17:11:14 +1000 Subject: [PATCH] KVM: PPC: Book3S HV: Fix preempted vcore stolen time calculation Whenever a vcore state is VCORE_PREEMPT we need to be counting stolen time for it. This currently isn't the case when we have a vcore that no longer has any runnable threads in it but still has a runner task, so we do an explicit call to kvmppc_core_start_stolen() in that case. Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf --- arch/powerpc/kvm/book3s_hv.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 3d022766294a..fad52f226c12 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2283,9 +2283,14 @@ static void post_guest_process(struct kvmppc_vcore *vc, bool is_master) } list_del_init(&vc->preempt_list); if (!is_master) { - vc->vcore_state = vc->runner ? VCORE_PREEMPT : VCORE_INACTIVE; - if (still_running > 0) + if (still_running > 0) { kvmppc_vcore_preempt(vc); + } else if (vc->runner) { + vc->vcore_state = VCORE_PREEMPT; + kvmppc_core_start_stolen(vc); + } else { + vc->vcore_state = VCORE_INACTIVE; + } if (vc->n_runnable > 0 && vc->runner == NULL) { /* make sure there's a candidate runner awake */ vcpu = list_first_entry(&vc->runnable_threads, -- 2.39.2