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Commit c424c108 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Paul Mackerras
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KVM: PPC: Book3S HV: Add more info about XIVE queues in debugfs 



Add details about enabled queues and escalation interrupts.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
parent d2799818

arch/powerpc/kvm/book3s_xive.c

+28 −0
Original line number Diff line number Diff line
@@ -1794,6 +1794,7 @@ static int xive_debug_show(struct seq_file *m, void *private) 


	kvm_for_each_vcpu(i, vcpu, kvm) {

		struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;

		unsigned int i;



		if (!xc)

			continue;
@@ -1803,6 +1804,33 @@ static int xive_debug_show(struct seq_file *m, void *private) 
			   xc->server_num, xc->cppr, xc->hw_cppr,

			   xc->mfrr, xc->pending,

			   xc->stat_rm_h_xirr, xc->stat_vm_h_xirr);

		for (i = 0; i < KVMPPC_XIVE_Q_COUNT; i++) {

			struct xive_q *q = &xc->queues[i];

			u32 i0, i1, idx;



			if (!q->qpage && !xc->esc_virq[i])

				continue;



			seq_printf(m, " [q%d]: ", i);



			if (q->qpage) {

				idx = q->idx;

				i0 = be32_to_cpup(q->qpage + idx);

				idx = (idx + 1) & q->msk;

				i1 = be32_to_cpup(q->qpage + idx);

				seq_printf(m, "T=%d %08x %08x... \n", q->toggle, i0, i1);

			}

			if (xc->esc_virq[i]) {

				struct irq_data *d = irq_get_irq_data(xc->esc_virq[i]);

				struct xive_irq_data *xd = irq_data_get_irq_handler_data(d);

				u64 pq = xive_vm_esb_load(xd, XIVE_ESB_GET);

				seq_printf(m, "E:%c%c I(%d:%llx:%llx)",

					   (pq & XIVE_ESB_VAL_P) ? 'P' : 'p',

					   (pq & XIVE_ESB_VAL_Q) ? 'Q' : 'q',

					   xc->esc_virq[i], pq, xd->eoi_page);

				seq_printf(m, "\n");

			}

		}



		t_rm_h_xirr += xc->stat_rm_h_xirr;

		t_rm_h_ipoll += xc->stat_rm_h_ipoll;