diff options
| author | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2017-12-08 12:13:51 +0000 |
|---|---|---|
| committer | Jeenu Viswambharan <jeenu.viswambharan@arm.com> | 2018-05-04 08:33:17 +0100 |
| commit | 1a7c1cfe70d5cd6e43e7d292eecbc1b4beaae678 (patch) | |
| tree | a08dba626532ab568e8df57d52e30b760b599a8d /lib/el3_runtime | |
| parent | ca6d9185829794f9d58dde706f94425a5c2cd9ef (diff) | |
RAS: Add fault injection support
The ARMv8.4 RAS extensions introduce architectural support for software
to inject faults into the system in order to test fault-handling
software. This patch introduces the build option FAULT_HANDLING_SUPPORT
to allow for lower ELs to use registers in the Standard Error Record to
inject fault. The build option RAS_EXTENSIONS must also be enabled along
with fault injection.
This feature is intended for testing purposes only, and is advisable to
keep disabled for production images.
Change-Id: I6f7a4454b15aec098f9505a10eb188c2f928f7ea
Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
Diffstat (limited to 'lib/el3_runtime')
| -rw-r--r-- | lib/el3_runtime/aarch64/context_mgmt.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c index 2608d1fc..76eecc18 100644 --- a/lib/el3_runtime/aarch64/context_mgmt.c +++ b/lib/el3_runtime/aarch64/context_mgmt.c @@ -114,6 +114,11 @@ static void cm_init_context_common(cpu_context_t *ctx, const entry_point_info_t scr_el3 &= ~SCR_EA_BIT; #endif +#if FAULT_INJECTION_SUPPORT + /* Enable fault injection from lower ELs */ + scr_el3 |= SCR_FIEN_BIT; +#endif + #ifdef IMAGE_BL31 /* * SCR_EL3.IRQ, SCR_EL3.FIQ: Enable the physical FIQ and IRQ rounting as |