UniXNU Docs
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Driver pages and porting guides describe the arm64e loader, the fileset emitter, the source driver builds and their current limits.
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DarwinBoot
Start with the adaptation procedure for board inputs, source changes, build integration and verification order.
UEFI bootloader. Installs the loader protocol and hands the kernel, ADT, trust cache and ramdisk to XNU.
| Repository | Maintainer | Scope |
|---|---|---|
| DarwinBoot | UniXNU | UEFI bootloader. Installs the loader protocol and hands the kernel, ADT, trust cache and ramdisk to XNU. |
State
Not a driver. Used by every XNU boot path.
The loader accepts arm64 and arm64e MH_EXECUTE kernels. CPU subtype
capability bits are retained. XNU initializes pointer authentication and
applies its chained fixups. MH_FILESET input is not supported yet.
Build
Include the DarwinBoot INF in the target firmware DSC/FDF, then run ./unixnu build firmware from UniXNU. Follow firmware integration and verify the loader protocol before selecting an XNU entry.
The source storage runtime also accepts kernel.macho.vroot, a separate signed
policy bundle passed through /chosen/memory-map/RootPolicies. Firmware checks
the envelope; the kernel verifies each signature and hash table against its
compiled owner anchor. The new sidecar path remains untested.