3 ms·
Speaking of lowRISC, does RISC-V also suffer from this? Apparently SPARC and s390 are immune, since they already have separated user and kernel address spaces,
by jabl 9y ago
Speaking of lowRISC, does RISC-V also suffer from this? Apparently SPARC and s390 are immune, since they already have separated user and kernel address spaces, maybe somehow enforced at the ISA level.
Having the benefit of hindsight, I hope they have avoided this issue.
- jabl 9y agoReplying to myself, it seems they haven't avoided it, and here is a recent proposal to fix it: https://groups.google.com/a/groups.riscv.org/d/msg/isa-dev/JU0M_vug4R0/YELX92fIBwAJ https://groups.google.com/a/groups.riscv.org/d/msg/isa-dev/J...