diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 47bdf10cfd9bc0bfe0076f144b2658d6411651c1..cb2df83b2c1d0c7e09a1ffa797ec9c9e32e9f6af 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -379,6 +379,21 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
         .driver   = TYPE_X86_CPU,\
         .property = "full-cpuid-auto-level",\
         .value    = "off",\
+    },\
+    {\
+        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
+        .property = "family",\
+        .value    = "15",\
+    },\
+    {\
+        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
+        .property = "model",\
+        .value    = "6",\
+    },\
+    {\
+        .driver   = "Opteron_G3" "-" TYPE_X86_CPU,\
+        .property = "stepping",\
+        .value    = "1",\
     },
 
 #define PC_COMPAT_2_6 \
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 0807e92600eb9ce12f38c0d5b6a98faf6c5c4ef7..1c57fce81bcd18a0b941215035b354290f614fa1 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1428,9 +1428,9 @@ static X86CPUDefinition builtin_x86_defs[] = {
         .name = "Opteron_G3",
         .level = 5,
         .vendor = CPUID_VENDOR_AMD,
-        .family = 15,
-        .model = 6,
-        .stepping = 1,
+        .family = 16,
+        .model = 2,
+        .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_VME | CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
             CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |