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