af68b41d40
Leave IRQ and MMIO initialization to instance_post_init. In Rust the two callbacks are more distinct, because only instance_post_init has a fully initialized object available. While at it, add a wrapper for sysbus_init_mmio so that accesses to the SysBusDevice correctly use shared references. Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>