Hi Dirk,
On 23.06.2016 13:33, Dirk Behme wrote: [...]
Idea: perhaps after this series is merged we can add 2 new commands to u-boot (SMC/HVC) to play with hypervisors/secure monitors (and perhaps use some simple functionality if needed).
How this should look like?
I thought of something like this (I did such code few times):
u-boot> smc 42 42 42 42 42 42 ret => (0x1, 0x2, 0x3, 0x4)
Could you share any (example?) code you have for such an smc/hvc U-Boot command?
I'm afraid I don't have it anymore :(
SMC call itself is trivial, you can use smc_call @ u-boot: arch/arm/cpu/armv8/fwcall.c (this is code for armv8 in 64-bit mode, but you can easily port it to armv7)
As for adding custom commands - just use any existing as template (sleep may be a good idea :) ).
Regards, Mateusz