core: use GET_USER_SCALAR() to save TA panic regs

Use GET_USER_SCALAR() macro to retrieve register values from the
user stack upon TA panic.

Signed-off-by: Seonghyun Park <seonghp@amazon.com>
Revie

core: use GET_USER_SCALAR() to save TA panic regs

Use GET_USER_SCALAR() macro to retrieve register values from the
user stack upon TA panic.

Signed-off-by: Seonghyun Park <seonghp@amazon.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>

show more ...

core: finalize scall layer

Finalizes the new scall layer by renaming remaining files so the generic
scall layer resides in core/include/kernel/scall.h and
core/kernel/scall.c.

New architectures are

core: finalize scall layer

Finalizes the new scall layer by renaming remaining files so the generic
scall layer resides in core/include/kernel/scall.h and
core/kernel/scall.c.

New architectures are expected to provide a
core/arch/arm/include/kernel/arch_scall.h with functions needed to deal
with the architecture specific struct thread_scall_regs usage in
core/kernel/scall.c.

New architectures are also expected to provide an implementation of
scall_save_panic_stack() called from scall_sys_return_helper().

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

show more ...

core: provide scall_save_panic_stack()

Provides an architecture specific function scall_save_panic_stack() in
core/arch/arm/kernel/arch_scall.c. This function and its helpers are
extracted from core

core: provide scall_save_panic_stack()

Provides an architecture specific function scall_save_panic_stack() in
core/arch/arm/kernel/arch_scall.c. This function and its helpers are
extracted from core/arch/arm/tee/arch_svc.c.

Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

show more ...