> > Also, eMMC controllers (which are more widely used on mobile platforms > > as the only available storage controller) use DMA under the OS, which > > complicates things even further when attempting to share such a > > controller between the OS and the firmware. > Agree with this. May need other implementations like cache in memory during > boot service and write back to partition by OS for this case.
Do you mean, firmware will treat boot media as read-only. And any write to device should be done by OS itself . few questions on this 1/ Interface between OS and firmware 2/ At run time, if there is any update in UEFI variables, how to trigger OS for update _______________________________________________ boot-architecture mailing list [email protected] https://lists.linaro.org/mailman/listinfo/boot-architecture
