From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org,
kvm@vger.kernel.org
Subject: [PATCH v4 1/6] powerpc/kvm/xive: Add more debugfs queues info
Date: Fri, 12 Jan 2018 13:37:11 +1100 [thread overview]
Message-ID: <20180112023716.9963-1-benh@kernel.crashing.org> (raw)
Add details about enabled queues and escalation interrupts
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/kvm/book3s_xive.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 0d750d274c4e..cd21c891be9e 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -1795,6 +1795,7 @@ 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;
@@ -1804,6 +1805,33 @@ 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;
--
2.14.3
next reply other threads:[~2018-01-12 2:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 2:37 Benjamin Herrenschmidt [this message]
2018-01-12 2:37 ` [PATCH v4 2/6] powerpc/kvm/xive: Enable use of the new "single escalation" feature Benjamin Herrenschmidt
2018-01-12 2:37 ` [PATCH v4 3/6] powerpc/kvm/xive: Don't use existing "prodded" flag for xive escalations Benjamin Herrenschmidt
2018-01-12 2:37 ` [PATCH v4 4/6] powerpc/kvm/xive: Check DR not IR to chose real vs virt mode MMIOs Benjamin Herrenschmidt
2018-01-12 2:37 ` [PATCH v4 5/6] powerpc/kvm/xive: Make xive_pushed a byte, not a word Benjamin Herrenschmidt
2018-01-12 2:37 ` [PATCH v4 6/6] powerpc/kvm/xive: Keep escalation interrupt masked unless ceded Benjamin Herrenschmidt
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