RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size, void (*resized)(const char*, uint64_t length, void *host), void *host, bool resizeable, MemoryRegion *mr, Error **errp) { RAMBlock *new_block; Error *local_err = NULL; size = HOST_PAGE_ALIGN(size); max_size = HOST_PAGE_ALIGN(max_size); new_block = g_malloc0(sizeof(*new_block)); new_block->mr = mr; new_block->resized = resized; new_block->used_length = size; new_block->max_length = max_size; assert(max_size >= size); new_block->fd = -1; new_block->host = host; if (host) { new_block->flags |= RAM_PREALLOC; } if (resizeable) { new_block->flags |= RAM_RESIZEABLE; } ram_block_add(new_block, &local_err); if (local_err) { g_free(new_block); error_propagate(errp, local_err); return NULL; } mr->ram_block = new_block; return new_block; }