target-i386: fix "info lapic" segfault on isapc

[mirror_qemu.git] / target / i386 / helper.c

diff --git a/target/i386/helper.c b/target/i386/helper.c
index e2af3404f289347d14f62750922ef457905d174a..f11cac63a1f97534e0cc508a68b407bdbb026950 100644 (file)
--- a/target/i386/helper.c
+++ b/target/i386/helper.c
@@ -326,6 +326,10 @@ void x86_cpu_dump_local_apic_state(CPUState *cs, FILE *f,
 {
     X86CPU *cpu = X86_CPU(cs);
     APICCommonState *s = APIC_COMMON(cpu->apic_state);
+    if (!s) {
+        cpu_fprintf(f, "local apic state not available\n");
+        return;
+    }
     uint32_t *lvt = s->lvt;
 
     cpu_fprintf(f, "dumping local APIC state for CPU %-2u\n\n",