Andrey Turkin
f51cd00f00
RISC-V convention marks PDE with no read/write/execute, so we can't have none of this flags set there. Remove their setting from PDE handling code and instead set them as appropriate in arch-specific defaults. Also enable both readonly and readwrite flags to be non-zero (as long as their intersection completely masks both of them), as required for RISC-V PTE handling.
Redox Memory Management
This is a Rust crate to provide abstractions for hardware memory management. It also contains a mechanism for testing memory management with software emulation.