Michael Brown e68ca57f46 [crypto] Use generic implementations of slow-path big integer functions
In the original big integer implementation, big integers were entirely
opaque to the caller and only the architecture-dependent code knew any
details of the internal structure.

This has long since ceased to be the case: for the sake of arithmetic
efficiency, many portions of the codebase now presume that big
integers are represented as an array of elements, with each element
being a native-endian unsigned value (with the precise type being
chosen by the architecture-specific header file) and with the least
significant element being first in the array.

The functions bigint_init(), bigint_done(), bigint_is_zero(),
bigint_is_geq(), and bigint_max_bit_set() are never used on fast code
paths, and most architectures use a generic C implementation of these
functions.

Provide generic implementations of these slow-path functions to be
used on all architectures.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
2026-06-13 15:53:19 +01:00
2026-03-06 15:48:55 +00:00
2015-02-26 17:59:53 +00:00

iPXE network bootloader

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iPXE is the leading open source network boot firmware. It provides a full PXE implementation enhanced with additional features such as:

  • boot from a web server via HTTP or HTTPS,

  • boot from an iSCSI, FCoE, or AoE SAN,

  • control the boot process with a script,

  • create interactive forms and menus.

You can use iPXE to replace the existing PXE ROM on your network card, or you can chainload into iPXE to obtain the features of iPXE without the hassle of reflashing.

iPXE is free, open-source software licensed under the GNU GPL (with some portions under GPL-compatible licences).

You can download the rolling release binaries (built from the latest commit), or use the most recent stable release.

For full documentation, visit the iPXE website.

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