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
This patch removes the need for a shared buffer between the EL3 and S-EL1 levels. We now use the CPU registers, x0-x7, while passing data between the two levels. Since TLK is a 32-bit Trusted OS, tlkd has to unpack the arguments in the x0-x7 registers. TLK in turn gets these values via r0-r7. Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>