diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/el3_runtime/aarch64/context_mgmt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/el3_runtime/aarch64/context_mgmt.c b/lib/el3_runtime/aarch64/context_mgmt.c index d65e02d5e..b7908adec 100644 --- a/lib/el3_runtime/aarch64/context_mgmt.c +++ b/lib/el3_runtime/aarch64/context_mgmt.c @@ -181,6 +181,16 @@ void cm_setup_context(cpu_context_t *ctx, const entry_point_info_t *ep) scr_el3 |= SCR_HCE_BIT; } + /* Enable S-EL2 if the next EL is EL2 and security state is secure */ + if ((security_state == SECURE) && (GET_EL(ep->spsr) == MODE_EL2)) { + if (GET_RW(ep->spsr) != MODE_RW_64) { + ERROR("S-EL2 can not be used in AArch32."); + panic(); + } + + scr_el3 |= SCR_EEL2_BIT; + } + /* * Initialise SCTLR_EL1 to the reset value corresponding to the target * execution state setting all fields rather than relying of the hw. |