A computer-implemented method may include assigning an address translation table to a peripheral component interconnect host bridge and determining that an input/output adapter accessible to the peripheral component interconnect host bridge is configured as a virtualized adapter to provide a plurality of virtual functions to a plurality of logical partitions. In response to determining that the input/output adapter is configured as the virtualized adapter, the address translation table may be subdivided to enable the plurality of virtual functions to access the memory of at least one logical partition of the plurality of logical partitions.