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* [mp] Define an API for multiprocessor functionsMichael Brown2024-03-151-0/+197
Define an API for executing very limited functions on application processors in a multiprocessor system, along with an x86-only implementation. The normal iPXE runtime environment is effectively non-existent on application processors. There is no ability to make firmware calls (e.g. to write to a console), and there may be no stack space available. Signed-off-by: Michael Brown <mcb30@ipxe.org>