diff --git a/qemu/target/i386/cpu.h b/qemu/target/i386/cpu.h
index 56862804..6abad6fb 100644
--- a/qemu/target/i386/cpu.h
+++ b/qemu/target/i386/cpu.h
@@ -1392,6 +1392,7 @@ struct X86CPU {
 
     int32_t node_id; /* NUMA node this CPU belongs to */
     int32_t socket_id;
+    int32_t die_id;
     int32_t core_id;
     int32_t thread_id;
 
diff --git a/qemu/target/i386/topology.h b/qemu/target/i386/topology.h
index 6c7ef3a1..d03ce19c 100644
--- a/qemu/target/i386/topology.h
+++ b/qemu/target/i386/topology.h
@@ -49,6 +49,7 @@ typedef uint32_t apic_id_t;
 
 typedef struct X86CPUTopoInfo {
     unsigned pkg_id;
+    unsigned die_id;
     unsigned core_id;
     unsigned smt_id;
 } X86CPUTopoInfo;
@@ -105,6 +106,7 @@ static inline void x86_topo_ids_from_apicid(apic_id_t apicid,
     topo->core_id = (apicid >> apicid_core_offset(nr_cores, nr_threads)) &
                    ~(0xFFFFFFFFUL << apicid_core_width(nr_cores, nr_threads));
     topo->pkg_id = apicid >> apicid_pkg_offset(nr_cores, nr_threads);
+    topo->die_id = 0;
 }
 
 /* Make APIC ID for the CPU based on Pkg_ID, Core_ID, SMT_ID