spd: trusty: only process one function ID at a time
In multi-guest trusty environment, all guest's SMCs will be
forwarded to Trusty. This change only allows 1 guest's SMC
to be forwarded at a time and returns 'busy' status to all
other requests.

Change-Id: I2144467d11e3680e28ec816adeec2766bca114d4
Signed-off-by: Anthony Zhou <anzhou@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
1 parent dae374b commit 64c07d0f009cdae746b227ae30055088bca93b50
@Anthony Zhou Anthony Zhou authored on 19 Apr 2016
Varun Wadekar committed on 6 Mar 2017
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services/spd/trusty/trusty.c