1. A system comprising: a remote direct memory access (RDMA) device; a peripheral device including a central processing unit (CPU) and a memory; and a platform controller hub (PCH) communicatively coupled to the RDMA device and the peripheral device, the PCH to: receive a notification of an access request message at a virtual address included in the PCH and mapped to one of the memory of the peripheral device or a memory of the RDMA device; in response to receiving the access request message at a virtual address mapped to the memory of the RDMA device, transmit an RDMA access request to the RDMA device based on the access request message for the memory of the RDMA device from the peripheral device, the RDMA access request message to include a virtual address RDMA parameter; and in response to receiving the access request message at a virtual address mapped to the memory of the peripheral device, transmit an access request message to the memory of the peripheral device.