in band tagging pointers

RISC-V is considering in-band tagging of pointers. Workgroups incvolved include

• J extension (dynamic ;anguages like JavaScript)
• TEE Trusted Execution Environment security although IMHO (Glew opinion) we are missing a group concerned specifically with preventing

People involved

• Kostya Serebryany (Google)
• Lee Campbell (Google)
• ... ?? Nvidia ?? ...
• ... ?? Russian group that built TBI and MTE on RISC-V FPGA ??...

More accurately, RISC-V is considering pre Virtual Address Transformations since Lee Campbell has proposed a transformation

    address <-- (pointer&mask) | (substitute&~mask)