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KVM: PPC: Book3S HV: Dump irqmap in debugfs

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

Signed-off-by: Suresh Warrier <warrier@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Suresh Warrier 2016-08-19 15:35:53 +10:00 committed by Paul Mackerras
parent f7af5209b8
commit af893c7dc9
1 changed files with 17 additions and 0 deletions
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17
arch/powerpc/kvm/book3s_xics.c
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@ -893,6 +893,21 @@ 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, "========\nPIRQ mappings: %d maps\n===========\n",
pimap->n_mapped);
for (i = 0; i < pimap->n_mapped; i++) {
seq_printf(m, "r_hwirq=%x, v_hwirq=%x\n",
pimap->mapped[i].r_hwirq, pimap->mapped[i].v_hwirq);
}
}
static int xics_debug_show(struct seq_file *m, void *private)
{
struct kvmppc_xics *xics = m->private;
@ -914,6 +929,8 @@ 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) {