The AMD Platform Security Processor (PSP) does not typically expose itself directly through specific network ports in the same way that Intel's Management Engine (IME) and its associated Intel Active Management Technology (AMT) do. The PSP is primarily focused on secure operations within the system, such as cryptographic functions, secure boot, and memory encryption, rather than remote management over a network.
Key Points about AMD PSP and Network Ports:
- No Direct Network Interface:
- Unlike Intel AMT, which uses specific network ports (e.g., 16992, 16993) for remote management, the AMD PSP doesn't have a direct network interface exposed for remote management tasks.
- Internal Communication:
- The PSP operates within the system's hardware, communicating directly with the CPU and other components, rather than over a network. Its primary functions involve securing the boot process, managing cryptographic keys, and enabling features like Secure Memory Encryption (SME) and Secure Encrypted Virtualization (SEV).
- Management Overhead:
- While the PSP is involved in security management, any remote management functions (if implemented) are typically handled by other layers of the system, such as the system's operating system, BIOS/UEFI firmware, or additional enterprise management software, rather than the PSP directly.
Blocking or Managing PSP Functions:
Since the PSP doesn’t use specific network ports for direct communication, there isn’t a straightforward way to block it via network port blocking as you might with Intel AMT. Instead, any concerns about the PSP's activity are typically addressed through:
- BIOS/UEFI Settings: You may have options to disable certain security features that rely on the PSP, like Secure Boot or specific encryption technologies, although disabling the PSP entirely is generally not possible.
- Firmware Updates: Ensuring your system's firmware is up-to-date is critical for addressing any vulnerabilities related to the PSP.
Summary:
The AMD PSP is primarily a security-focused processor embedded within AMD systems and does not utilize specific network ports for remote management like Intel's AMT. Therefore, it cannot be managed or blocked via network port filtering in the same way. Concerns about its activity are typically addressed through BIOS/UEFI settings and firmware updates.