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macio: Fix to realize "mos6522-cuda" and "mos6522-pmu" devices

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cuda_init() creates a "mos6522-cuda" device, but it's never realized.
Affects machines mac99 with via=cuda (default) and g3beige.

pmu_init() creates a "mos6522-pmu" device, but it's never realized.
Affects machine mac99 with via=pmu and via=pmu-adb,

In theory, a device becomes real only on realize.  In practice, the
transition from unreal to real is a fuzzy one.  The work to make a
device real can be spread between realize methods (fine),
instance_init methods (wrong), and board code wiring up the device
(fine as long as it effectively happens on realize).  Depending on
what exactly is done where, a device can work even when we neglect
to realize it.

These two appear to work.  Nevertheless, it's a clear misuse of the
interface.  Even when it works today (more or less by chance), it can
break tomorrow.

Fix by realizing them in cuda_realize() and pmu_realize(),
respectively.

Fixes: 6dca62a000
Cc: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200609122339.937862-10-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-06-09 14:23:24 +02:00
parent 5e769ecf50
commit 3d81f594fd
2 changed files with 20 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
hw/misc/macio/cuda.c
View File

@ -33,6 +33,7 @@
#include "hw/misc/macio/cuda.h"
#include "qemu/timer.h"
#include "sysemu/runstate.h"
#include "qapi/error.h"
#include "qemu/cutils.h"
#include "qemu/log.h"
#include "qemu/module.h"
@ -522,16 +523,20 @@ static void cuda_reset(DeviceState *dev)
static void cuda_realize(DeviceState *dev, Error **errp)
{
CUDAState *s = CUDA(dev);
Error *err = NULL;
SysBusDevice *sbd;
MOS6522State *ms;
DeviceState *d;
struct tm tm;
object_property_set_bool(OBJECT(&s->mos6522_cuda), true, "realized",
&err);
if (err) {
error_propagate(errp, err);
return;
}
/* Pass IRQ from 6522 */
d = DEVICE(&s->mos6522_cuda);
ms = MOS6522(d);
sbd = SYS_BUS_DEVICE(s);
sysbus_pass_irq(sbd, SYS_BUS_DEVICE(ms));
sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->mos6522_cuda));
qemu_get_timedate(&tm, 0);
s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET;

15
hw/misc/macio/pmu.c
View File

@ -40,6 +40,7 @@
#include "hw/misc/macio/pmu.h"
#include "qemu/timer.h"
#include "sysemu/runstate.h"
#include "qapi/error.h"
#include "qemu/cutils.h"
#include "qemu/log.h"
#include "qemu/module.h"
@ -739,16 +740,20 @@ static void pmu_reset(DeviceState *dev)
static void pmu_realize(DeviceState *dev, Error **errp)
{
PMUState *s = VIA_PMU(dev);
Error *err = NULL;
SysBusDevice *sbd;
MOS6522State *ms;
DeviceState *d;
struct tm tm;
object_property_set_bool(OBJECT(&s->mos6522_pmu), true, "realized",
&err);
if (err) {
error_propagate(errp, err);
return;
}
/* Pass IRQ from 6522 */
d = DEVICE(&s->mos6522_pmu);
ms = MOS6522(d);
sbd = SYS_BUS_DEVICE(s);
sysbus_pass_irq(sbd, SYS_BUS_DEVICE(ms));
sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->mos6522_pmu));
qemu_get_timedate(&tm, 0);
s->tick_offset = (uint32_t)mktimegm(&tm) + RTC_OFFSET;