Hi, Dall:
I have a few questions about switching cpu's state from secure to
non-sec in uboot.
1. I found do_nonsec_virt_switch() function had been integrated in
uboot_2014_01_RC2.
This function would switch cpu from secure state to non-sec, even
into hyp-state.
So, my question is:
If a SOC is based on ARMv7 architecture:
Virt-v7.c / nonsec_virt.S are common files to all kinds of SOCs
which are produced by different Vendors?
2. Does uboot need to switch its state to non-sec?
Based on ARM company released doc:
U-boot should run at non-sec state, so no need to swith to non-sec
again.
Best wishes,
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