#include "qemu/osdep.h"
#include "qemu/log.h"
#include "cpu.h"
+#include "qapi/error.h"
#include "qapi/visitor.h"
#include "qemu/range.h"
#include "hw/isa/isa.h"
DeviceState *dev = DEVICE(d);
ISABus *isa_bus;
+ if ((lpc->smi_host_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT)) &&
+ !(lpc->smi_host_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT))) {
+ /*
+ * smi_features_ok_callback() throws an error on this.
+ *
+ * So bail out here instead of advertizing the invalid
+ * configuration and get obscure firmware failures from that.
+ */
+ error_setg(errp, "cpu hot-unplug requires cpu hot-plug");
+ return;
+ }
+
isa_bus = isa_bus_new(DEVICE(d), get_system_memory(), get_system_io(),
errp);
if (!isa_bus) {