fw_cfg_mem: introduce the "data_width" property
The "data_width" property is capable of changing the maximum valid access size to the MMIO data register, and resizes the memory region similarly, at device realization time. The default value of "data_memwidth" is set so that we don't yet diverge from "fw_cfg_data_mem_ops". Most of the fw_cfg_mem users will stick with the default, and for them we should continue using the statically allocated "fw_cfg_data_mem_ops". This is beneficial for debugging because gdb can resolve pointers referencing static objects to the names of those objects. Signed-off-by: NLaszlo Ersek <lersek@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Message-id: 1419250305-31062-7-git-send-email-pbonzini@redhat.com Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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