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hw/sparc/sun4m: Fix problems with device introspection

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Several devices of the sun4m machines are using &error_fatal in
their instance_init function and thus can cause QEMU to abort
unexpectedly:

$ echo "{'execute':'qmp_capabilities'}"\
       "{'execute':'device-list-properties',"\
       " 'arguments':{'typename':'openprom'}}" \
       | sparc-softmmu/qemu-system-sparc -M SS-10 -S -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
 "package": "build-all"}, "capabilities": []}}
{"return": {}}
RAMBlock "sun4m.prom" already registered, abort!
Aborted (core dumped)

$ echo "{'execute':'qmp_capabilities'}"\
       "{'execute':'device-list-properties',"\
       " 'arguments':{'typename':'macio_idreg'}}" \
       | sparc-softmmu/qemu-system-sparc -M SS-10 -S -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
 "package": "build-all"}, "capabilities": []}}
{"return": {}}
RAMBlock "sun4m.idreg" already registered, abort!
Aborted (core dumped)

$ echo "{'execute':'qmp_capabilities'}"\
       "{'execute':'device-list-properties',"\
       " 'arguments':{'typename':'tcx_afx'}}" \
       | sparc-softmmu/qemu-system-sparc -M SS-5 -S -qmp stdio
{"QMP": {"version": {"qemu": {"micro": 91, "minor": 11, "major": 2},
 "package": "build-all"}, "capabilities": []}}
{"return": {}}
RAMBlock "sun4m.afx" already registered, abort!
Aborted (core dumped)

Fix the issues by converting the instance_init functions into realize()
functions instead, which are allowed to fail (and not called during
device introspection).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
This commit is contained in:
Thomas Huth 2018-04-05 12:43:03 +02:00 committed by Mark Cave-Ayland
parent 92b19880f7
commit a2a5a7b5e2
1 changed files with 50 additions and 17 deletions
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67
hw/sparc/sun4m.c
View File

@ -572,23 +572,36 @@ typedef struct IDRegState {
MemoryRegion mem;
} IDRegState;
static void idreg_init1(Object *obj)
static void idreg_realize(DeviceState *ds, Error **errp)
{
IDRegState *s = MACIO_ID_REGISTER(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
IDRegState *s = MACIO_ID_REGISTER(ds);
SysBusDevice *dev = SYS_BUS_DEVICE(ds);
Error *local_err = NULL;
memory_region_init_ram_nomigrate(&s->mem, OBJECT(ds), "sun4m.idreg",
sizeof(idreg_data), &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
memory_region_init_ram_nomigrate(&s->mem, obj,
"sun4m.idreg", sizeof(idreg_data), &error_fatal);
vmstate_register_ram_global(&s->mem);
memory_region_set_readonly(&s->mem, true);
sysbus_init_mmio(dev, &s->mem);
}
static void idreg_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = idreg_realize;
}
static const TypeInfo idreg_info = {
.name = TYPE_MACIO_ID_REGISTER,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(IDRegState),
.instance_init = idreg_init1,
.class_init = idreg_class_init,
};
#define TYPE_TCX_AFX "tcx_afx"
@ -613,21 +626,35 @@ static void afx_init(hwaddr addr)
sysbus_mmio_map(s, 0, addr);
}
static void afx_init1(Object *obj)
static void afx_realize(DeviceState *ds, Error **errp)
{
AFXState *s = TCX_AFX(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
AFXState *s = TCX_AFX(ds);
SysBusDevice *dev = SYS_BUS_DEVICE(ds);
Error *local_err = NULL;
memory_region_init_ram_nomigrate(&s->mem, OBJECT(ds), "sun4m.afx", 4,
&local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
memory_region_init_ram_nomigrate(&s->mem, obj, "sun4m.afx", 4, &error_fatal);
vmstate_register_ram_global(&s->mem);
sysbus_init_mmio(dev, &s->mem);
}
static void afx_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = afx_realize;
}
static const TypeInfo afx_info = {
.name = TYPE_TCX_AFX,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(AFXState),
.instance_init = afx_init1,
.class_init = afx_class_init,
};
#define TYPE_OPENPROM "openprom"
@ -680,13 +707,19 @@ static void prom_init(hwaddr addr, const char *bios_name)
}
}
static void prom_init1(Object *obj)
static void prom_realize(DeviceState *ds, Error **errp)
{
PROMState *s = OPENPROM(obj);
SysBusDevice *dev = SYS_BUS_DEVICE(obj);
PROMState *s = OPENPROM(ds);
SysBusDevice *dev = SYS_BUS_DEVICE(ds);
Error *local_err = NULL;
memory_region_init_ram_nomigrate(&s->prom, OBJECT(ds), "sun4m.prom",
PROM_SIZE_MAX, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
memory_region_init_ram_nomigrate(&s->prom, obj, "sun4m.prom", PROM_SIZE_MAX,
&error_fatal);
vmstate_register_ram_global(&s->prom);
memory_region_set_readonly(&s->prom, true);
sysbus_init_mmio(dev, &s->prom);
@ -701,6 +734,7 @@ static void prom_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
dc->props = prom_properties;
dc->realize = prom_realize;
}
static const TypeInfo prom_info = {
@ -708,7 +742,6 @@ static const TypeInfo prom_info = {
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PROMState),
.class_init = prom_class_init,
.instance_init = prom_init1,
};
#define TYPE_SUN4M_MEMORY "memory"