tree a31caf683ad84a10c78d1a7b3d7d42b4837f9535
parent f36ec920627a08b27dc0d8710ed404baeb794bbf
author Manish Pandey <manish.pandey2@arm.com> 1698403544 +0100
committer Manish Pandey <manish.pandey2@arm.com> 1699303418 +0000

fix(smccc): ensure that mpidr passed through SMC is valid

There are various SMC calls which pass mpidr as an argument which is
currently tested at random places in SMC call path.
To make the mpidr validation check consistent across SMC calls, do
this check as part of SMC argument validation.

This patch introduce a helper function is_valid_mpidr() to validate
mpidr and call it as part of validating SMC arguments at starting of
SMC handlers (which expect mpidr as an argument).

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I11ea50e22caf17896cf4b2059b87029b2ba136b1