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* [build] Mark core files as permitted for UEFI Secure BootMichael Brown2026-01-141-0/+1
| | | | | | | | | | | | Mark all files used in a standard build of bin-x86_64-efi/snponly.efi as permitted for UEFI Secure Boot. These files represent the core functionality of iPXE that is guaranteed to have been included in every binary that was previously subject to a security review and signed by Microsoft. It is therefore legitimate to assume that at least these files have already been reviewed to the required standard multiple times. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [uheap] Expose external heap region directlyMichael Brown2025-05-221-0/+4
| | | | | | | | | | | | | We currently rely on implicit detection of the external heap region. The INT 15 memory map mangler relies on examining the corresponding in-use memory region, and the initrd reshuffler relies on performing a separate detection of the largest free memory block after startup has completed. Replace these with explicit public symbols to describe the external heap region. Signed-off-by: Michael Brown <mcb30@ipxe.org>
* [uheap] Add a generic external heap based on the system memory mapMichael Brown2025-05-191-0/+18
Add an implementation of umalloc() using the generalised model of a heap, placing the external heap in the largest usable region obtained from the system memory map. Signed-off-by: Michael Brown <mcb30@ipxe.org>