Patchwork [21/21] target-i386: cleanup cpu_x86_find_by_name(), only fill x86_def_t in it

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Submitter Igor Mammedov
Date Aug. 15, 2012, 4:13 p.m.
Message ID <1345047221-26898-22-git-send-email-imammedo@redhat.com>
Download mbox | patch
Permalink /patch/177731/
State New
Headers show

Comments

Igor Mammedov - Aug. 15, 2012, 4:13 p.m.
Do in cpu_x86_find_by_name() only what name implies. i.e. leave only
cpudef search and copy/fill passed in x86_def_t structure.

and move out of it cpu_model parsing and CPU initializing into
cpu_x86_register(). Plus add hints to where blocks should go when
cpu_x86_register() is disbanded.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
 target-i386/cpu.c | 55 +++++++++++++++++++++++++++----------------------------
 1 file changed, 27 insertions(+), 28 deletions(-)

Patch

diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 75cbf48..ee2a90f 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1170,42 +1170,26 @@  static int cpu_x86_find_by_name(X86CPU *cpu, x86_def_t *x86_cpu_def,
 {
     x86_def_t *def;
 
-    QDict *features;
-    char *name;
-
-    compat_normalize_cpu_model(cpu_model, &name, &features, errp);
-    if (error_is_set(errp)) {
-        goto error;
+    if (!cpu_model) {
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "cpu_model", "NULL");
+        return -1;
     }
 
-    for (def = x86_defs; def; def = def->next)
-        if (name && !strcmp(name, def->name))
+    for (def = x86_defs; def; def = def->next) {
+        if (!strcmp(cpu_model, def->name)) {
             break;
-    if (kvm_enabled() && name && strcmp(name, "host") == 0) {
+        }
+    }
+    if (kvm_enabled() && strcmp(cpu_model, "host") == 0) {
         cpu_x86_fill_host(x86_cpu_def);
     } else if (!def) {
-        goto error;
+        error_set(errp, QERR_DEVICE_NOT_FOUND, cpu_model);
+        return -1;
     } else {
         memcpy(x86_cpu_def, def, sizeof(*def));
     }
 
-    cpudef_2_x86_cpu(cpu, x86_cpu_def, errp);
-
-    cpu_x86_set_props(cpu, features, errp);
-    QDECREF(features);
-    if (error_is_set(errp)) {
-        goto error;
-    }
-
-    g_free(name);
     return 0;
-
-error:
-    g_free(name);
-    if (!error_is_set(errp)) {
-        error_set(errp, QERR_INVALID_PARAMETER_COMBINATION);
-    }
-    return -1;
 }
 
 /* generate a composite string into buf of all cpuid names in featureset
@@ -1326,14 +1310,29 @@  int cpu_x86_register(X86CPU *cpu, const char *cpu_model)
 {
     x86_def_t def1, *def = &def1;
     Error *error = NULL;
+    QDict *features;
+    char *name;
 
-    memset(def, 0, sizeof(*def));
+    /* for CPU subclasses should go into cpu_x86_init() before object_new() */
+    compat_normalize_cpu_model(cpu_model, &name, &features, &error);
+    if (error_is_set(&error)) {
+        goto out;
+    }
 
-    if (cpu_x86_find_by_name(cpu, def, cpu_model, &error) < 0) {
+    /* this block should be replaced by CPU subclasses */
+    memset(def, 0, sizeof(*def));
+    if (cpu_x86_find_by_name(cpu, def, name, &error) < 0) {
         goto out;
     }
+    cpudef_2_x86_cpu(cpu, def, &error);
+
+    /* for CPU subclasses should go between object_new() and
+     * x86_cpu_realize() */
+    cpu_x86_set_props(cpu, features, &error);
 
 out:
+    QDECREF(features);
+    g_free(name);
     if (error_is_set(&error)) {
         fprintf(stderr, "%s\n", error_get_pretty(error));
         error_free(error);