target-i386: Update model values on Conroe/Penryn/Nehalem CPU models

The CPUID model values on Conroe, Penryn, and Nehalem are too
conservative and don't reflect the values found on real Conroe, Penryn,
and Nehalem CPUs.

This causes at least one known problems: Windows XP disables sysenter
when (family == 6 && model <= 2), but Skype tries to use the sysenter
instruction anyway because it is reported as available on CPUID, making
it crash.

This patch sets appropriate model values that correspond to real Conroe,
Penryn, and Nehalem CPUs.
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

hw/i386/pc_piix.c

@@ -344,6 +344,10 @@ static QEMUMachine pc_i440fx_machine_v1_5 = {
     .init = pc_init_pci,
     .hot_add_cpu = pc_hot_add_cpu,
     .max_cpus = 255,
+    .compat_props = (GlobalProperty[]) {
+        PC_COMPAT_1_5,
+        { /* end of list */ }
+    },
     DEFAULT_MACHINE_OPTIONS,
 };
 

hw/i386/pc_q35.c

@@ -231,6 +231,10 @@ static QEMUMachine pc_q35_machine_v1_5 = {
     .init = pc_q35_init,
     .hot_add_cpu = pc_hot_add_cpu,
     .max_cpus = 255,
+    .compat_props = (GlobalProperty[]) {
+        PC_COMPAT_1_5,
+        { /* end of list */ }
+    },
     DEFAULT_MACHINE_OPTIONS,
 };
 

include/hw/i386/pc.h

@@ -185,7 +185,23 @@ int pvpanic_init(ISABus *bus);
 
 int e820_add_entry(uint64_t, uint64_t, uint32_t);
 
+#define PC_COMPAT_1_5 \
+        {\
+            .driver   = "Conroe-" TYPE_X86_CPU,\
+            .property = "model",\
+            .value    = stringify(2),\
+        },{\
+            .driver   = "Penryn-" TYPE_X86_CPU,\
+            .property = "model",\
+            .value    = stringify(2),\
+        },{\
+            .driver   = "Nehalem-" TYPE_X86_CPU,\
+            .property = "model",\
+            .value    = stringify(2),\
+        }
+
 #define PC_COMPAT_1_4 \
+        PC_COMPAT_1_5, \
         {\
             .driver   = "scsi-hd",\
             .property = "discard_granularity",\

target-i386/cpu.c

@@ -672,7 +672,7 @@ static x86_def_t builtin_x86_defs[] = {
         .level = 2,
         .vendor = CPUID_VENDOR_INTEL,
         .family = 6,
-        .model = 2,
+        .model = 15,
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
@@ -694,7 +694,7 @@ static x86_def_t builtin_x86_defs[] = {
         .level = 2,
         .vendor = CPUID_VENDOR_INTEL,
         .family = 6,
-        .model = 2,
+        .model = 23,
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
@@ -717,7 +717,7 @@ static x86_def_t builtin_x86_defs[] = {
         .level = 2,
         .vendor = CPUID_VENDOR_INTEL,
         .family = 6,
-        .model = 2,
+        .model = 26,
         .stepping = 3,
         .features[FEAT_1_EDX] =
             CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |