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2024-05-25arch/arm64: Support calling a trusted monitorBenjamin Doron
Implement support for generating an SMC to call a trusted monitor. Some functions are provided to read the SoC ID from the monitor, if supported. Change-Id: I158db0b971aba722b3995d52162146aa406d1644 Signed-off-by: Benjamin Doron <benjamin.doron@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/78284 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>