diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index c67b42d34f..4279cf5cde 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1122,7 +1122,16 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w);
 #define CPUID_VENDOR_AMD_3   0x444d4163 /* "cAMD" */
 #define CPUID_VENDOR_AMD   "AuthenticAMD"
 
-#define CPUID_VENDOR_VIA   "CentaurHauls"
+#define CPUID_VENDOR_ZHAOXIN1_1 0x746E6543 /* "Cent" */
+#define CPUID_VENDOR_ZHAOXIN1_2 0x48727561 /* "aurH" */
+#define CPUID_VENDOR_ZHAOXIN1_3 0x736C7561 /* "auls" */
+
+#define CPUID_VENDOR_ZHAOXIN2_1 0x68532020 /* "  Sh" */
+#define CPUID_VENDOR_ZHAOXIN2_2 0x68676E61 /* "angh" */
+#define CPUID_VENDOR_ZHAOXIN2_3 0x20206961 /* "ai  " */
+
+#define CPUID_VENDOR_ZHAOXIN1   "CentaurHauls"
+#define CPUID_VENDOR_ZHAOXIN2   "  Shanghai  "
 
 #define CPUID_VENDOR_HYGON    "HygonGenuine"
 
@@ -1132,6 +1141,15 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w);
 #define IS_AMD_CPU(env) ((env)->cpuid_vendor1 == CPUID_VENDOR_AMD_1 && \
                          (env)->cpuid_vendor2 == CPUID_VENDOR_AMD_2 && \
                          (env)->cpuid_vendor3 == CPUID_VENDOR_AMD_3)
+#define IS_ZHAOXIN1_CPU(env) \
+    ((env)->cpuid_vendor1 == CPUID_VENDOR_ZHAOXIN1_1 && \
+     (env)->cpuid_vendor2 == CPUID_VENDOR_ZHAOXIN1_2 && \
+     (env)->cpuid_vendor3 == CPUID_VENDOR_ZHAOXIN1_3)
+#define IS_ZHAOXIN2_CPU(env) \
+    ((env)->cpuid_vendor1 == CPUID_VENDOR_ZHAOXIN2_1 && \
+     (env)->cpuid_vendor2 == CPUID_VENDOR_ZHAOXIN2_2 && \
+     (env)->cpuid_vendor3 == CPUID_VENDOR_ZHAOXIN2_3)
+#define IS_ZHAOXIN_CPU(env) (IS_ZHAOXIN1_CPU(env) || IS_ZHAOXIN2_CPU(env))
 
 #define CPUID_MWAIT_IBE     (1U << 1) /* Interrupts can exit capability */
 #define CPUID_MWAIT_EMX     (1U << 0) /* enumeration supported */