tree 3c78db34e6b9995df9cc3f561c944d00a029257e
parent 8e5bd5e7ce9d8f172cc8e0ba8ee93565c2168add
author Dimitris Papastamos <dimitris.papastamos@arm.com> 1516621984 +0000
committer Dimitris Papastamos <dimitris.papastamos@arm.com> 1517219937 +0000

runtime_exceptions: Save x4-x29 unconditionally

In preparation for SMCCC v1.1 support, save x4 to x29 unconditionally.
Previously we expected callers coming from AArch64 mode to preserve
x8-x17.  This is no longer the case with SMCCC v1.1 as AArch64 callers
only need to save x0-x3.

Change-Id: Ie62d620776533969ff4a02c635422f1b9208be9c
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>