refactor(cm): reset the cptr_el3 before perworld context setup
Currently, the registers which are maintained per-world, does not
take into account the reset value while configuring the context for
the respective world.
This leads to an issue, wherein the register retains the same value
across world switch, which is an error.
This patch addresses this problem, by configuring the register
(cptr_el3) precisely according to the world, the cpu is in
execution via resetting it before initializing the world specific context.
Change-Id: I592d82af373155fca67eed109c199341c305f0b9
Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com>
diff --git a/include/lib/el3_runtime/context_mgmt.h b/include/lib/el3_runtime/context_mgmt.h
index b2bdaf5..f631125 100644
--- a/include/lib/el3_runtime/context_mgmt.h
+++ b/include/lib/el3_runtime/context_mgmt.h
@@ -40,7 +40,9 @@
#if IMAGE_BL31
void cm_manage_extensions_el3(void);
void manage_extensions_nonsecure_per_world(void);
+void cm_el3_arch_init_per_world(per_world_context_t *per_world_ctx);
#endif
+
#if CTX_INCLUDE_EL2_REGS
void cm_el2_sysregs_context_save(uint32_t security_state);
void cm_el2_sysregs_context_restore(uint32_t security_state);