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authorAndreas Färber <afaerber@suse.de>2013-01-23 11:17:14 +0100
committerAndreas Färber <afaerber@suse.de>2013-01-27 14:52:05 +0100
commitbd039ce0094f3724a87a193c846ee8468ce652b0 (patch)
tree4ab008106e68fb70734fedd2a0e5a7961be63c1d /target-openrisc
parentbc5b2da32ba54d991e8669b14a771afb3a67f408 (diff)
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target-openrisc: Detect attempt to instantiate non-CPU type in cpu_init()
Consolidate model checking into a new openrisc_cpu_class_by_name(). If the name matches an existing type, also check whether that type is actually (a sub-type of) TYPE_OPENRISC_CPU. This fixes, e.g., -cpu open_eth asserting. Cc: qemu-stable@nongnu.org Signed-off-by: Andreas Färber <afaerber@suse.de>
Diffstat (limited to 'target-openrisc')
-rw-r--r--target-openrisc/cpu.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/target-openrisc/cpu.c b/target-openrisc/cpu.c
index 7a55112..e23100f 100644
--- a/target-openrisc/cpu.c
+++ b/target-openrisc/cpu.c
@@ -88,6 +88,22 @@ static void openrisc_cpu_initfn(Object *obj)
}
/* CPU models */
+
+static ObjectClass *openrisc_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_OPENRISC_CPU)) {
+ return NULL;
+ }
+ return oc;
+}
+
static void or1200_initfn(Object *obj)
{
OpenRISCCPU *cpu = OPENRISC_CPU(obj);
@@ -120,6 +136,8 @@ static void openrisc_cpu_class_init(ObjectClass *oc, void *data)
occ->parent_reset = cc->reset;
cc->reset = openrisc_cpu_reset;
+
+ cc->class_by_name = openrisc_cpu_class_by_name;
}
static void cpu_register(const OpenRISCCPUInfo *info)
@@ -158,11 +176,13 @@ static void openrisc_cpu_register_types(void)
OpenRISCCPU *cpu_openrisc_init(const char *cpu_model)
{
OpenRISCCPU *cpu;
+ ObjectClass *oc;
- if (!object_class_by_name(cpu_model)) {
+ oc = openrisc_cpu_class_by_name(cpu_model);
+ if (oc == NULL) {
return NULL;
}
- cpu = OPENRISC_CPU(object_new(cpu_model));
+ cpu = OPENRISC_CPU(object_new(object_class_get_name(oc)));
cpu->env.cpu_model_str = cpu_model;
openrisc_cpu_realize(OBJECT(cpu), NULL);