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[Qemu-devel] [PATCH 4/9] hw/misc/empty_slot: Add a qdev property 'size'
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [PATCH 4/9] hw/misc/empty_slot: Add a qdev property 'size' |
Date: |
Tue, 25 Jun 2019 00:00:51 +0200 |
Add a qdev 'size' property, check the size is not zero in the
realize() function, simplify the empty_slot_init() logic.
Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
hw/misc/empty_slot.c | 43 ++++++++++++++++++++++++-------------------
1 file changed, 24 insertions(+), 19 deletions(-)
diff --git a/hw/misc/empty_slot.c b/hw/misc/empty_slot.c
index 53299cdbd1..ef0a7b99ba 100644
--- a/hw/misc/empty_slot.c
+++ b/hw/misc/empty_slot.c
@@ -10,6 +10,7 @@
*/
#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "hw/hw.h"
#include "hw/sysbus.h"
#include "qemu/module.h"
@@ -55,41 +56,45 @@ static const MemoryRegionOps empty_slot_ops = {
void empty_slot_init(hwaddr addr, uint64_t slot_size)
{
- if (slot_size > 0) {
- /* Only empty slots larger than 0 byte need handling. */
- DeviceState *dev;
- SysBusDevice *s;
- EmptySlot *e;
-
- dev = qdev_create(NULL, TYPE_EMPTY_SLOT);
- s = SYS_BUS_DEVICE(dev);
- e = EMPTY_SLOT(dev);
- e->size = slot_size;
-
- qdev_init_nofail(dev);
-
- /*
- * We use a priority lower than the default UNIMPLEMENTED_DEVICE
- * to be able to plug a UnimplementedDevice on an EmptySlot.
- */
- sysbus_mmio_map_overlap(s, 0, addr, -10000);
- }
+ DeviceState *dev;
+
+ dev = qdev_create(NULL, TYPE_EMPTY_SLOT);
+
+ qdev_prop_set_uint64(dev, "size", slot_size);
+ qdev_init_nofail(dev);
+
+ /*
+ * We use a priority lower than the default UNIMPLEMENTED_DEVICE
+ * to be able to plug a UnimplementedDevice on an EmptySlot.
+ */
+ sysbus_mmio_map_overlap(SYS_BUS_DEVICE(dev), 0, addr, -10000);
}
static void empty_slot_realize(DeviceState *dev, Error **errp)
{
EmptySlot *s = EMPTY_SLOT(dev);
+ if (s->size == 0) {
+ error_setg(errp, "property 'size' not specified or zero");
+ return;
+ }
+
memory_region_init_io(&s->iomem, OBJECT(s), &empty_slot_ops, s,
"empty-slot", s->size);
sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
}
+static Property empty_slot_properties[] = {
+ DEFINE_PROP_UINT64("size", EmptySlot, size, 0),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
static void empty_slot_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = empty_slot_realize;
+ dc->props = empty_slot_properties;
}
static const TypeInfo empty_slot_info = {
--
2.19.1
- Re: [Qemu-devel] [PATCH 5/9] hw/misc/empty_slot: Add a qdev property 'name', (continued)