Crate ruvix_aarch64 

AArch64 architecture support for RuVix Cognition Kernel

This crate provides low-level AArch64 support including:

• Boot sequence and early initialization
• Memory Management Unit (MMU) configuration
• Exception handling (sync, IRQ, FIQ, SError)
• System register access

Memory Layout

0x0000_0000_0000_0000 - 0x0000_FFFF_FFFF_FFFF: User space (TTBR0_EL1)
0xFFFF_0000_0000_0000 - 0xFFFF_FFFF_FFFF_FFFF: Kernel space (TTBR1_EL1)

Boot Sequence

1. Assembly entry point (_start) disables interrupts
2. Stack pointer initialized
3. BSS section cleared
4. early_init() called to set up MMU
5. Exception vectors configured
6. Jump to kernel_main()

Re-exports

pub use boot::early_init;

pub use boot::kernel_main;

pub use mmu::Mmu;

pub use registers::*;

Modules

boot

Boot sequence and early initialization for AArch64

exception

AArch64 exception handling

mmu

AArch64 Memory Management Unit (MMU) implementation

registers

AArch64 system register accessors

Constants

KERNEL_VIRT_BASE

Kernel virtual base address (upper half)

PAGE_SHIFT

AArch64 page shift (log2 of page size)

PAGE_SIZE

AArch64 page size (4KB)

PHYS_RAM_BASE

VECTOR_ALIGNMENT

Exception vector alignment requirement (2KB = 0x800)

Functions

phys_to_virt

Convert physical address to virtual (simple offset for identity mapping)

virt_to_phys

Convert virtual address to physical (simple offset for identity mapping)