Searched hist:f8a35797b919d8ea041480bd5eb2a334e7056e0b (Results 1 – 2 of 2) sorted by relevance
| /rk3399_ARM-atf/include/lib/ |
| H A D | smccc.h | f8a35797b919d8ea041480bd5eb2a334e7056e0b Thu Mar 09 13:56:03 UTC 2023 Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> fix(smccc): check smc_fid [23:17] bits
As per SMCCC spec Table 2.1 bit 23:17 must be zero (MBZ),
for all Fast Calls, when bit[31] == 1.
Adding this check to ensure SMC FIDs when get to the SMC handler
have these bits (23:17) cleared, if not capture and report them
as an unknown SMCs at the core.
Also the C runtime stack is copied to the stackpointer well in
advance, to leverage the existing el3_exit routine for unknown SMC.
Change-Id: I9972216db5ac164815011177945fb34dadc871b0
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
|
| /rk3399_ARM-atf/bl31/aarch64/ |
| H A D | runtime_exceptions.S | f8a35797b919d8ea041480bd5eb2a334e7056e0b Thu Mar 09 13:56:03 UTC 2023 Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> fix(smccc): check smc_fid [23:17] bits
As per SMCCC spec Table 2.1 bit 23:17 must be zero (MBZ),
for all Fast Calls, when bit[31] == 1.
Adding this check to ensure SMC FIDs when get to the SMC handler
have these bits (23:17) cleared, if not capture and report them
as an unknown SMCs at the core.
Also the C runtime stack is copied to the stackpointer well in
advance, to leverage the existing el3_exit routine for unknown SMC.
Change-Id: I9972216db5ac164815011177945fb34dadc871b0
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
|