Commit 52aef7bb authored by Peter Crosthwaite's avatar Peter Crosthwaite Committed by Paolo Bonzini
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memory: MemoryRegion: Add size property 



To allow devices to dynamically resize the device. The motivation is
to allow devices with variable size to init their memory_region
without size early and then correctly populate size at realize() time.

Signed-off-by: default avatarPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent d33382da

memory.c

+13 −0
Original line number Diff line number Diff line
@@ -971,6 +971,15 @@ static bool memory_region_get_may_overlap(Object *obj, Error **errp) 
    return mr->may_overlap;

}



static void memory_region_get_size(Object *obj, Visitor *v, void *opaque,

                                   const char *name, Error **errp)

{

    MemoryRegion *mr = MEMORY_REGION(obj);

    uint64_t value = memory_region_size(mr);



    visit_type_uint64(v, &value, name, errp);

}



static void memory_region_initfn(Object *obj)

{

    MemoryRegion *mr = MEMORY_REGION(obj);
@@ -1002,6 +1011,10 @@ static void memory_region_initfn(Object *obj) 
                             memory_region_get_may_overlap,

                             NULL, /* memory_region_set_may_overlap */

                             &error_abort);

    object_property_add(OBJECT(mr), "size", "uint64",

                        memory_region_get_size,

                        NULL, /* memory_region_set_size, */

                        NULL, NULL, &error_abort);

}



static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,