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From 9429b15851f184fbff187d9a751451c9ed8ae5c9 Mon Sep 17 00:00:00 2001
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From: Hari Bathini <hbathini@linux.ibm.com>
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Date: Mon, 4 Jul 2022 10:55:45 +0530
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Subject: [PATCH 07/28] ppc64: print emergency stacks info with 'mach' command
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Print top address of emergency stacks with 'mach' command.
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Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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---
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ppc64.c | 40 ++++++++++++++++++++++++++++++++++++++++
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1 file changed, 40 insertions(+)
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diff --git a/ppc64.c b/ppc64.c
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index 03047a85955d..ad1d6e121e81 100644
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--- a/ppc64.c
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+++ b/ppc64.c
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@@ -3161,6 +3161,44 @@ opalmsg(void)
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fprintf(fp, "\n");
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}
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+static void ppc64_print_emergency_stack_info(void)
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+{
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+ struct machine_specific *ms = machdep->machspec;
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+ char buf[32];
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+ int i;
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+
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+ fprintf(fp, " EMERGENCY STACK: ");
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+ if (ms->emergency_sp) {
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+ fprintf(fp, "\n");
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+ for (i = 0; i < kt->cpus; i++) {
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+ sprintf(buf, "CPU %d", i);
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+ fprintf(fp, "%19s: %lx\n", buf, ms->emergency_sp[i]);
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+ }
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+ } else
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+ fprintf(fp, "(unused)\n");
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+
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+ fprintf(fp, "NMI EMERGENCY STACK: ");
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+ if (ms->nmi_emergency_sp) {
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+ fprintf(fp, "\n");
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+ for (i = 0; i < kt->cpus; i++) {
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+ sprintf(buf, "CPU %d", i);
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+ fprintf(fp, "%19s: %lx\n", buf, ms->nmi_emergency_sp[i]);
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+ }
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+ } else
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+ fprintf(fp, "(unused)\n");
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+
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+ fprintf(fp, " MC EMERGENCY STACK: ");
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+ if (ms->mc_emergency_sp) {
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+ fprintf(fp, "\n");
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+ for (i = 0; i < kt->cpus; i++) {
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+ sprintf(buf, "CPU %d", i);
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+ fprintf(fp, "%19s: %lx\n", buf, ms->mc_emergency_sp[i]);
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+ }
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+ } else
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+ fprintf(fp, "(unused)\n");
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+ fprintf(fp, "\n");
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+}
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+
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/*
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* Machine dependent command.
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*/
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@@ -3241,6 +3279,8 @@ ppc64_display_machine_stats(void)
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fprintf(fp, "%19s: %lx\n", buf, tt->softirq_ctx[c]);
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}
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}
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+
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+ ppc64_print_emergency_stack_info();
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}
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static const char *hook_files[] = {
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--
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2.37.1
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