Crate squib_arch 

aarch64 architecture support for squib.

squib-arch is the single source of truth for every architecture-specific constant and protocol the boot path depends on. It is consumed by the HVF backend (squib-hv), the FDT builder (squib-fdt), the kernel loader (squib-loader), and the VMM boot orchestrator (squib-vmm). If a constant is in this crate, no other crate is allowed to invent it.

See 13-arch-and-boot.md for the full design.

Modules

• layout — fixed memory layout (D22) with const overlap-checks and the page geometry.
• gic — IntId newtype that pins the FDT-cell ↔ raw-INTID mapping.
• esr — ESR_EL2 decoder; never panics on a malformed input.
• psci — PSCI 1.1 dispatch table; unknown IDs return NOT_SUPPORTED.
• regs — the Reg enum (X0..X30, SP, PC, PSTATE) and set_boot_regs helper.
• sysregs — curated sysreg subset (~100 regs we touch).

Re-exports

pub use esr::EsrDecoded;

pub use esr::decode as decode_esr;

pub use gic::IntId;

pub use gic::IntIdError;

pub use gic::Trigger;

pub use layout::LayoutOverlap;

pub use layout::MEMORY_LAYOUT;

pub use layout::MemoryLayout;

pub use layout::PageGeometry;

pub use psci::PsciFunction;

pub use psci::PsciOutcome;

pub use psci::PsciReturn;

pub use psci::dispatch as dispatch_psci;

pub use regs::BOOT_PSTATE;

pub use regs::BootRegs;

pub use regs::Reg;

pub use sysregs::SysReg;

Modules

esr

ESR_EL2 syndrome decoder.

gic

GIC interrupt-ID newtype.

layout

aarch64 memory layout — pinned constants for squib’s microvm.

psci

PSCI 1.1 dispatch table.

regs

aarch64 register set + initial-register helper.

sysregs

Curated sysreg subset (~100 registers we touch).