Module boot

Boot integration module.

Handles the transition from UEFI boot services to bare metal.

Two-Phase Boot Model

Phase 1: UEFI Boot Services Active

• Calibrate TSC using UEFI Stall()
• Allocate DMA region via PCI I/O Protocol
• Scan PCI for NIC and block devices
• Populate BootHandoff structure
• Call ExitBootServices()

Phase 2: Bare Metal (Post-EBS)

• Validate BootHandoff
• Initialize NIC driver
• Initialize block device driver (optional)
• Enter main poll loop

Reference

NETWORK_IMPL_GUIDE.md §7

Re-exports

• pub use handoff::has_invariant_tsc;
• pub use handoff::read_tsc_raw;
• pub use handoff::BootHandoff;
• pub use handoff::HandoffError;
• pub use handoff::TscCalibration;
• pub use handoff::BLK_TYPE_AHCI;
• pub use handoff::BLK_TYPE_NONE;
• pub use handoff::BLK_TYPE_NVME;
• pub use handoff::BLK_TYPE_VIRTIO;
• pub use handoff::HANDOFF_MAGIC;
• pub use handoff::HANDOFF_VERSION;
• pub use handoff::NIC_TYPE_BROADCOM;
• pub use handoff::NIC_TYPE_INTEL;
• pub use handoff::NIC_TYPE_NONE;
• pub use handoff::NIC_TYPE_REALTEK;
• pub use handoff::NIC_TYPE_VIRTIO;
• pub use init::post_ebs_init;
• pub use init::InitError;
• pub use init::InitResult;
• pub use init::TimeoutConfig;

Modules

• handoff
  BootHandoff structure.
• init
  Post-ExitBootServices initialization.