diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c index a4a8d9f0dcb735d6d16057aeb81fc9e4ac1bb5e1..60bdbac8beba912b06cf5a103488825ea9814a5a 100644 --- a/arch/powerpc/kvm/book3s_xics.c +++ b/arch/powerpc/kvm/book3s_xics.c @@ -802,14 +802,22 @@ static noinline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall) XICS_DBG("XICS_RM: H_%x completing, act: %x state: %lx tgt: %p\n", hcall, icp->rm_action, icp->rm_dbgstate.raw, icp->rm_dbgtgt); - if (icp->rm_action & XICS_RM_KICK_VCPU) + if (icp->rm_action & XICS_RM_KICK_VCPU) { + icp->n_rm_kick_vcpu++; kvmppc_fast_vcpu_kick(icp->rm_kick_target); - if (icp->rm_action & XICS_RM_CHECK_RESEND) + } + if (icp->rm_action & XICS_RM_CHECK_RESEND) { + icp->n_rm_check_resend++; icp_check_resend(xics, icp->rm_resend_icp); - if (icp->rm_action & XICS_RM_REJECT) + } + if (icp->rm_action & XICS_RM_REJECT) { + icp->n_rm_reject++; icp_deliver_irq(xics, icp, icp->rm_reject); - if (icp->rm_action & XICS_RM_NOTIFY_EOI) + } + if (icp->rm_action & XICS_RM_NOTIFY_EOI) { + icp->n_rm_notify_eoi++; kvm_notify_acked_irq(vcpu->kvm, 0, icp->rm_eoied_irq); + } icp->rm_action = 0; @@ -872,10 +880,17 @@ static int xics_debug_show(struct seq_file *m, void *private) struct kvm *kvm = xics->kvm; struct kvm_vcpu *vcpu; int icsid, i; + unsigned long t_rm_kick_vcpu, t_rm_check_resend; + unsigned long t_rm_reject, t_rm_notify_eoi; if (!kvm) return 0; + t_rm_kick_vcpu = 0; + t_rm_notify_eoi = 0; + t_rm_check_resend = 0; + t_rm_reject = 0; + seq_printf(m, "=========\nICP state\n=========\n"); kvm_for_each_vcpu(i, vcpu, kvm) { @@ -890,8 +905,16 @@ static int xics_debug_show(struct seq_file *m, void *private) icp->server_num, state.xisr, state.pending_pri, state.cppr, state.mfrr, state.out_ee, state.need_resend); + t_rm_kick_vcpu += icp->n_rm_kick_vcpu; + t_rm_notify_eoi += icp->n_rm_notify_eoi; + t_rm_check_resend += icp->n_rm_check_resend; + t_rm_reject += icp->n_rm_reject; } + seq_puts(m, "ICP Guest Real Mode exit totals: "); + seq_printf(m, "\tkick_vcpu=%lu check_resend=%lu reject=%lu notify_eoi=%lu\n", + t_rm_kick_vcpu, t_rm_check_resend, + t_rm_reject, t_rm_notify_eoi); for (icsid = 0; icsid <= KVMPPC_XICS_MAX_ICS_ID; icsid++) { struct kvmppc_ics *ics = xics->ics[icsid]; diff --git a/arch/powerpc/kvm/book3s_xics.h b/arch/powerpc/kvm/book3s_xics.h index 73f0f2723c074ec2aa292bc4b0f20958666a70c8..de970eca216750778c20e7e6dea0ccfede729428 100644 --- a/arch/powerpc/kvm/book3s_xics.h +++ b/arch/powerpc/kvm/book3s_xics.h @@ -78,6 +78,12 @@ struct kvmppc_icp { u32 rm_reject; u32 rm_eoied_irq; + /* Counters for each reason we exited real mode */ + unsigned long n_rm_kick_vcpu; + unsigned long n_rm_check_resend; + unsigned long n_rm_reject; + unsigned long n_rm_notify_eoi; + /* Debug stuff for real mode */ union kvmppc_icp_state rm_dbgstate; struct kvm_vcpu *rm_dbgtgt;