tree 67431f3739b10391c78b582f53c371f3ef41d1c8
parent 6718842ed3ee6849493fa87dbf66f38af015816b
author Varun Wadekar <vwadekar@nvidia.com> 1591981888 -0700
committer Varun Wadekar <vwadekar@nvidia.com> 1591982411 -0700

Prevent RAS register access from lower ELs

This patch adds a build config 'RAS_TRAP_LOWER_EL_ERR_ACCESS' to set
SCR_EL3.TERR during CPU boot. This bit enables trapping RAS register
accesses from EL1 or EL2 to EL3.

RAS_TRAP_LOWER_EL_ERR_ACCESS is disabled by default.

Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Ifb0fb0afedea7dd2a29a0b0491a1161ecd241438