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softmmu/ioport.c: QOMify MemoryRegionPortioList

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The aim of QOMification is so that the lifetime of the MemoryRegionPortioList
structure can be managed using QOM's in-built refcounting instead of having to
handle this manually.

Due to the use of an opaque pointer it isn't possible to model the new
TYPE_MEMORY_REGION_PORTIO_LIST directly using QOM properties, however since
use of the new object is restricted to the portio API we can simply set the
opaque pointer (and the heap-allocated port list) internally.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230419151652.362717-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2023-04-19 16:16:51 +01:00 committed by Paolo Bonzini
parent d2f07b75ae
commit 28770689c5
1 changed files with 31 additions and 5 deletions
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36
softmmu/ioport.c
View file

@ -32,11 +32,16 @@
#include "exec/address-spaces.h"
#include "trace.h"
typedef struct MemoryRegionPortioList {
struct MemoryRegionPortioList {
Object obj;
MemoryRegion mr;
void *portio_opaque;
MemoryRegionPortio *ports;
} MemoryRegionPortioList;
};
#define TYPE_MEMORY_REGION_PORTIO_LIST "memory-region-portio-list"
OBJECT_DECLARE_SIMPLE_TYPE(MemoryRegionPortioList, MEMORY_REGION_PORTIO_LIST)
static uint64_t unassigned_io_read(void *opaque, hwaddr addr, unsigned size)
{
@ -147,8 +152,7 @@ void portio_list_destroy(PortioList *piolist)
for (i = 0; i < piolist->nr; ++i) {
mrpio = container_of(piolist->regions[i], MemoryRegionPortioList, mr);
object_unparent(OBJECT(&mrpio->mr));
g_free(mrpio->ports);
g_free(mrpio);
object_unref(mrpio);
}
g_free(piolist->regions);
}
@ -228,7 +232,8 @@ static void portio_list_add_1(PortioList *piolist,
unsigned i;
/* Copy the sub-list and null-terminate it. */
mrpio = g_malloc0(sizeof(MemoryRegionPortioList));
mrpio = MEMORY_REGION_PORTIO_LIST(
object_new(TYPE_MEMORY_REGION_PORTIO_LIST));
mrpio->portio_opaque = piolist->opaque;
mrpio->ports = g_malloc0(sizeof(MemoryRegionPortio) * (count + 1));
memcpy(mrpio->ports, pio_init, sizeof(MemoryRegionPortio) * count);
@ -298,3 +303,24 @@ void portio_list_del(PortioList *piolist)
memory_region_del_subregion(piolist->address_space, &mrpio->mr);
}
}
static void memory_region_portio_list_finalize(Object *obj)
{
MemoryRegionPortioList *mrpio = MEMORY_REGION_PORTIO_LIST(obj);
g_free(mrpio->ports);
}
static const TypeInfo memory_region_portio_list_info = {
.parent = TYPE_OBJECT,
.name = TYPE_MEMORY_REGION_PORTIO_LIST,
.instance_size = sizeof(MemoryRegionPortioList),
.instance_finalize = memory_region_portio_list_finalize,
};
static void ioport_register_types(void)
{
type_register_static(&memory_region_portio_list_info);
}
type_init(ioport_register_types)