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authorAndreas Färber <afaerber@suse.de>2013-01-23 12:07:17 +0100
committerAndreas Färber <afaerber@suse.de>2013-01-27 23:33:25 +0100
commitd89e12188d50f7f8a894027789f32fa7ba6226ad (patch)
treee10fc11fa7f82fc4c85dfba0ef4426f292df5542 /target-unicore32
parentbd039ce0094f3724a87a193c846ee8468ce652b0 (diff)
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target-unicore32: Detect attempt to instantiate non-CPU type in cpu_init()
Consolidate model checking into a new uc32_cpu_class_by_name(). If the name matches an existing type, also check whether that type is actually (a sub-type of) TYPE_UNICORE32_CPU. This fixes, e.g., -cpu puv3_dma asserting. Cc: qemu-stable@nongnu.org Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'target-unicore32')
-rw-r--r--target-unicore32/cpu.c23
-rw-r--r--target-unicore32/helper.c6
2 files changed, 27 insertions, 2 deletions
diff --git a/target-unicore32/cpu.c b/target-unicore32/cpu.c
index 884c101..9239d49 100644
--- a/target-unicore32/cpu.c
+++ b/target-unicore32/cpu.c
@@ -22,6 +22,21 @@ static inline void set_feature(CPUUniCore32State *env, int feature)
/* CPU models */
+static ObjectClass *uc32_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+
+ oc = object_class_by_name(cpu_model);
+ if (oc != NULL && !object_class_dynamic_cast(oc, TYPE_UNICORE32_CPU)) {
+ oc = NULL;
+ }
+ return oc;
+}
+
typedef struct UniCore32CPUInfo {
const char *name;
void (*instance_init)(Object *obj);
@@ -80,6 +95,13 @@ static void uc32_cpu_initfn(Object *obj)
tlb_flush(env, 1);
}
+static void uc32_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CPUClass *cc = CPU_CLASS(oc);
+
+ cc->class_by_name = uc32_cpu_class_by_name;
+}
+
static void uc32_register_cpu_type(const UniCore32CPUInfo *info)
{
TypeInfo type_info = {
@@ -98,6 +120,7 @@ static const TypeInfo uc32_cpu_type_info = {
.instance_init = uc32_cpu_initfn,
.abstract = true,
.class_size = sizeof(UniCore32CPUClass),
+ .class_init = uc32_cpu_class_init,
};
static void uc32_cpu_register_types(void)
diff --git a/target-unicore32/helper.c b/target-unicore32/helper.c
index 5359538..183b5b3 100644
--- a/target-unicore32/helper.c
+++ b/target-unicore32/helper.c
@@ -29,12 +29,14 @@ CPUUniCore32State *uc32_cpu_init(const char *cpu_model)
{
UniCore32CPU *cpu;
CPUUniCore32State *env;
+ ObjectClass *oc;
static int inited = 1;
- if (object_class_by_name(cpu_model) == NULL) {
+ oc = cpu_class_by_name(TYPE_UNICORE32_CPU, cpu_model);
+ if (oc == NULL) {
return NULL;
}
- cpu = UNICORE32_CPU(object_new(cpu_model));
+ cpu = UNICORE32_CPU(object_new(object_class_get_name(oc)));
env = &cpu->env;
if (inited) {