Abstract: Systems, apparatuses and methods may provide for technology that initializes a host-managed device memory (HDM) as a temporary proxy for a system memory, wherein the HDM is associated with an accelerator. The technology also creates a shadow copy of boot firmware code in the HDM and executes one or more boot instructions in the shadow copy of the boot firmware code. In one example, the one or more boot instructions are to be one or more of executed before an initialization of the system memory or executed in parallel with the initialization of the system memory.

Abstract: Systems, apparatuses and methods may provide for technology that detects, by a remote processor coupled to a remote socket, a transition request from a system processor coupled to a system socket, wherein the system socket has an indirect link with the remote socket. The technology may also automatically conduct an operational speed transition at the remote socket in response to the transition request, wherein the operational speed transition at the remote socket is to occur in parallel with a plurality of operational speed transitions at a corresponding plurality of peer sockets.

Abstract: In accordance with embodiments disclosed herein, there is provided systems and methods for extending a root complex to encompass an external component. A processor includes a processor core and root complex circuitry coupled to the processor core. The processor core is to execute a basic input/output system (BIOS) and an operating system (OS). The root complex circuitry includes a coherent interface port and a downstream port. The root complex circuitry is to couple to an external component via the downstream port and the coherent interface port. The BIOS, to extend a root complex beyond the root complex circuitry to encompass the external component, is to obfuscate the downstream port from the OS, define a virtual root bridge for the external component, and enable a security check at the external component to provide protection for the coherent interface port and the downstream port.

Abstract: In accordance with embodiments disclosed herein, there is provided systems and methods for extending a root complex to encompass an external component. A processor includes a processor core and root complex circuitry coupled to the processor core. The processor core is to execute a basic input/output system (BIOS) and an operating system (OS). The root complex circuitry includes a coherent interface port and a downstream port. The root complex circuitry is to couple to an external component via the downstream port and the coherent interface port. The BIOS, to extend a root complex beyond the root complex circuitry to encompass the external component, is to obfuscate the downstream port from the OS, define a virtual root bridge for the external component, and enable a security check at the external component to provide protection for the coherent interface port and the downstream port.