[PATCH 10/14] KVM: PPC: Book3S HV: Dump irqmap in debugfs

[Suresh Warrier]

Dump the passthrough irqmap structure associated with a
guest as part of /sys/kernel/debug/powerpc/kvm-xics-*.

Signed-off-by: Suresh Warrier <warrier at linux.vnet.ibm.com>
---
 arch/powerpc/kvm/book3s_xics.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index b90570c..855d669 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -905,6 +905,21 @@ EXPORT_SYMBOL_GPL(kvmppc_xics_hcall);
 
 /* -- Initialisation code etc. -- */
 
+static void xics_debugfs_irqmap(struct seq_file *m,
+				struct kvmppc_passthru_irqmap *pimap)
+{
+	int i;
+
+	if (!pimap)
+		return;
+	seq_printf(m, "========\nPIRQMAP Cache: %d maps\n===========\n",
+				pimap->n_cached);
+	for (i = 0; i < pimap->n_cached; i++)  {
+		seq_printf(m, "r_hwirq=%x, v_hwirq=%x\n",
+			pimap->cached[i].r_hwirq, pimap->cached[i].v_hwirq);
+	}
+}
+
 static int xics_debug_show(struct seq_file *m, void *private)
 {
 	struct kvmppc_xics *xics = m->private;
@@ -926,6 +941,8 @@ static int xics_debug_show(struct seq_file *m, void *private)
 	t_check_resend = 0;
 	t_reject = 0;
 
+	xics_debugfs_irqmap(m, kvm->arch.pimap);
+
 	seq_printf(m, "=========\nICP state\n=========\n");
 
 	kvm_for_each_vcpu(i, vcpu, kvm) {
-- 
1.8.3.4