Hi Asha, I don't know the proper answers to all of your questions. I would suggest that the EDK2 mailing list might give you more detailed answers:
[email protected] I think you have to sign up for the list first: https://lists.sourceforge.net/lists/listinfo/edk2-devel 2012/3/26 Asha R <[email protected]> > 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? > I flash a single .fd onto my platforms. 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? > UEFI has interrupt support for ARM platforms. Regards, Ryan.
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