The bcm2835_fb's initial resolution and other parameters are set via QOM properties. We should reset to those initial values on device reset, which means we need to save the QOM property values somewhere that they are not overwritten by guest changes to the framebuffer configuration. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20180814144436.679-5-peter.maydell@linaro.org