I am new to UEFI and trying to understand working of UEFI on ARM platform.
On building UEFI, there are different binaries generated for each phase and
also for drivers
eg: platformSec.efi, platformBds.efi and UsbDxe.efi,etc
Q1. Is UEFI flashed as single binary i.e., PlatformPkg.fd or different
efi's?
Q1. As the code is in ROM (flash), I understand that it must be copied to
RAM for execution.
Will complete UEFI be copied to RAM or some phase or section wise?
Q3. How does operating sysetm invoke the UEFI Runtime services?
Q4. I read in one of the internet link that other than Timer, there are no
hardware interrupts.
Without hardware interrupt how will the USB kind of device be
recognized?
Kindly clarify my doubts to help me in understanding UEFI better. Thanks in
advance.
Regards,
Asha R
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