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-rw-r--r--hw/i386/pc.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 74cb4f962c..14f0d91f76 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -992,6 +992,7 @@ void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge)
int i;
X86CPU *cpu = NULL;
Error *error = NULL;
+ unsigned long apic_id_limit;
/* init CPUs */
if (cpu_model == NULL) {
@@ -1003,6 +1004,13 @@ void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge)
}
current_cpu_model = cpu_model;
+ apic_id_limit = pc_apic_id_limit(max_cpus);
+ if (apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) {
+ error_report("max_cpus is too large. APIC ID of last CPU is %lu",
+ apic_id_limit - 1);
+ exit(1);
+ }
+
for (i = 0; i < smp_cpus; i++) {
cpu = pc_new_cpu(cpu_model, x86_cpu_apic_id_from_index(i),
icc_bridge, &error);