TECHNOLOGIES FOR TRUSTED I/O WITH A CHANNEL IDENTIFIER FILTER AND PROCESSOR-BASED CRYPTOGRAPHIC ENGINE

Technologies for trusted I/O include a computing device having a processor, a channel identifier filter, and an I/O controller. The I/O controller may generate an I/O transaction that includes a channel identifier and a memory address. The channel identifier filter verifies that the memory address of the I/O transaction is within a processor reserved memory region associated with the channel identifier. The processor reserved memory region is not accessible to software executed by the computing device. The processor encrypts I/O data at the memory address in response to invocation of a processor feature and copies the encrypted data to a memory buffer outside of the processor reserved memory region. The processor may securely clean the processor reserved memory region before encrypting and copying the data. The processor may wrap and unwrap programming information for the channel identifier filter. Other embodiments are described and claimed.