Intel Prepares To Re-Enable ENQCMD On Linux After Being Disabled For "Broken Beyond Repair"

The ENQCMD functionality that is part of Intel's Data Streaming Accelerator with upcoming Xeon Scalable "Sapphire Rapids" processors was disabled earlier this year for being "broken beyond repair". But now ahead of Sapphire Rapids beginning to ramp up in the coming months, Intel open-source engineers believe they have improved the code that the ENQCMD instruction usage could be re-enabled for the Linux kernel...