core: add CFG_CALLOUT

Add CFG_CALLOUT with a default value assigned from CFG_CORE_ASYNC_NOTIF
to control if the callout service should be enabled.

Signed-off-by: Jens Wiklander <jens.wiklander@lina

core: add CFG_CALLOUT

Add CFG_CALLOUT with a default value assigned from CFG_CORE_ASYNC_NOTIF
to control if the callout service should be enabled.

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

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core: arm64: implement timer_init_callout_service()

Implement timer_init_callout_service() needed to initialize and drive
the callout service. Only available in AArch64.

Signed-off-by: Jens Wikland

core: arm64: implement timer_init_callout_service()

Implement timer_init_callout_service() needed to initialize and drive
the callout service. Only available in AArch64.

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

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core: arm64: implement __do_semihosting() for Aarch64

Implement __do_semihosting() as documented in the "Semihosting for
Aarch32 and Aarch64" specification [1].

Link: https://github.com/ARM-softwar

core: arm64: implement __do_semihosting() for Aarch64

Implement __do_semihosting() as documented in the "Semihosting for
Aarch32 and Aarch64" specification [1].

Link: https://github.com/ARM-software/abi-aa/blob/2023Q3/semihosting/semihosting.rst [1]
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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core: ffa: remove AArch32 support

The FF-A and AArch32 configuration was prior to this patch not compile
tested and not used upstream. So remove the AArch32 support for FF-A
configurations so save m

core: ffa: remove AArch32 support

The FF-A and AArch32 configuration was prior to this patch not compile
tested and not used upstream. So remove the AArch32 support for FF-A
configurations so save maintenance effort.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>

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virt: rename CFG_VIRTUALIZATION to CFG_NS_VIRTUALIZATION

With the advent of virtualization support at S-EL2 in the Armv8.4-A
architecture, CFG_VIRTUALIZATION has become ambiguous. Let's rename
it to

virt: rename CFG_VIRTUALIZATION to CFG_NS_VIRTUALIZATION

With the advent of virtualization support at S-EL2 in the Armv8.4-A
architecture, CFG_VIRTUALIZATION has become ambiguous. Let's rename
it to CFG_NS_VIRTUALIZATION to indicate more clearly that it is about
supporting virtualization on the non-secure side.

This commit is the result of the following command:

$ for f in $(git grep -l -w CFG_VIRTUALIZATION); do \
sed -i -e 's/CFG_VIRTUALIZATION/CFG_NS_VIRTUALIZATION/g' $f; \
done

...plus the compatibility line in mk/config.mk:

CFG_NS_VIRTUALIZATION ?= $(CFG_VIRTUALIZATION)

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

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core: kernel: move ldelf_loader.c to core/kernel

Make other architecture implementations benefit from ldelf_loader.c,
therefore move it from core/arch/arm/kernel to core/kernel.
The header file is a

core: kernel: move ldelf_loader.c to core/kernel

Make other architecture implementations benefit from ldelf_loader.c,
therefore move it from core/arch/arm/kernel to core/kernel.
The header file is already located outside the arch folder.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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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>

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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>

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core: kernel: move otp_stubs.c to core/kernel

otp_stubs.c is architecture-agnostic, therefore, move it
from core/arch/arm/kernel to core/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@

core: kernel: move otp_stubs.c to core/kernel

otp_stubs.c is architecture-agnostic, therefore, move it
from core/arch/arm/kernel to core/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: kernel: delay: sort-out architecture-independant code from arch dir

This commit moves core/arch/arm/kernel/delay.c to core/kernel/delay.c.
Keeps architecture-dependant code in
core/arch/$ARCH/

core: kernel: delay: sort-out architecture-independant code from arch dir

This commit moves core/arch/arm/kernel/delay.c to core/kernel/delay.c.
Keeps architecture-dependant code in
core/arch/$ARCH/include/kernel/delay_arch.h and moves generic functions
to core/include/kernel/delay.h

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: move tee_time.c and tee_time_ree.c to core/kernel

tee_time.c and tee_time_ree.c are architecture-independant code therefore
move them from core/arch/arm/kernel to core/kernel.

Signed-off-by:

core: move tee_time.c and tee_time_ree.c to core/kernel

tee_time.c and tee_time_ree.c are architecture-independant code therefore
move them from core/arch/arm/kernel to core/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move trace_ext.c to core/kernel

Functions in trace_ext.c are architecture independent, therefore, code
could be moved to core/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubak

core: kernel: move trace_ext.c to core/kernel

Functions in trace_ext.c are architecture independent, therefore, code
could be moved to core/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: kernel: move spin_lock_debug.c to core/kernel

Source file spin_lock_debug.c does not contain architecture-specific code
therefore, move it from core/arch/arm/kernel to core/kernel and remove
u

core: kernel: move spin_lock_debug.c to core/kernel

Source file spin_lock_debug.c does not contain architecture-specific code
therefore, move it from core/arch/arm/kernel to core/kernel and remove
unused header thread_private.h

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

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core: arm: implement cpu_idle()

Implement cpu_idle() on arm and arm64, based on wfi(). With this patch,
a panicked CPU no longer burns cycles needlessly.

Signed-off-by: Jerome Forissier <jerome@for

core: arm: implement cpu_idle()

Implement cpu_idle() on arm and arm64, based on wfi(). With this patch,
a panicked CPU no longer burns cycles needlessly.

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

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core: kernel: move embedded_ts.c to core/kernel

The embedded_ts.c code is not architecture-specific, therefore, move
it to core/kernel and move embedded_ts.h to core/include/kernel.

Signed-off-by:

core: kernel: move embedded_ts.c to core/kernel

The embedded_ts.c code is not architecture-specific, therefore, move
it to core/kernel and move embedded_ts.h to core/include/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move secstor_ta.c to core/tee

secstor_ta.c is not architecture-specific code, therefore
move it to core/tee.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by:

core: kernel: move secstor_ta.c to core/tee

secstor_ta.c is not architecture-specific code, therefore
move it to core/tee.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move ree_fs_ta.c to core/tee

ree_fs_ta.c is not architecture-specific code, therefore
move it to core/tee.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Je

core: kernel: move ree_fs_ta.c to core/tee

ree_fs_ta.c is not architecture-specific code, therefore
move it to core/tee.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move early_ta.c to core/tee

early_ta.c is not architecture-specific code,
therefore move it to core/tee.
Moves early_ta.h to core/include/kernel as well.

Signed-off-by: Marouene Bouba

core: kernel: move early_ta.c to core/tee

early_ta.c is not architecture-specific code,
therefore move it to core/tee.
Moves early_ta.h to core/include/kernel as well.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move pseudo_ta.c to core/tee

pseudo_ta.c is not architecture-specific code,
therefore move it to core/tee.
pseudo_ta.h is already located under core/include/kernel

Signed-off-by: Maro

core: kernel: move pseudo_ta.c to core/tee

pseudo_ta.c is not architecture-specific code,
therefore move it to core/tee.
pseudo_ta.h is already located under core/include/kernel

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: kernel: move user_ta.c to core/tee

user_ta.c is not architecture-specific code, therefore
move it to core/tee.
user_ta.h is already located under core/include/kernel.

Signed-off-by: Marouene

core: kernel: move user_ta.c to core/tee

user_ta.c is not architecture-specific code, therefore
move it to core/tee.
user_ta.h is already located under core/include/kernel.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: Add ffa_msg_send_req and ffa_msg_send_resp

Add FF-A message handling of FFA_MSG_SEND_DIRECT_REQ_32 and
FFA_MSG_SEND_DIRECT_RESP_32 messages.
The FFA_MSG_SEND_DIRECT_RESP_32 message is used to

core: Add ffa_msg_send_req and ffa_msg_send_resp

Add FF-A message handling of FFA_MSG_SEND_DIRECT_REQ_32 and
FFA_MSG_SEND_DIRECT_RESP_32 messages.
The FFA_MSG_SEND_DIRECT_RESP_32 message is used to send a message from
one FF-A endpoint to a second FF-A endpoint. FFA_MSG_SEND_DIRECT_RESP_32
is used to send a response message from the callee to the caller.

A separate abstraction is made (spmc_sp_handler) for handling FF-A
messages received from secure endpoints (SP).
thread_spmc_msg_recv() is still used for handling all FF-A messages
coming from the Normal World. When a FFA_MSG_SEND_DIRECT_REQ_32 message
is received for the Normal World a new kernel thread is started and
spmc_sp_msg_handler() is run. spmc_sp_msg_handler() is used as the main
message handler for handling the FF-A messages coming from SPs.

Whenever a message is sent to the normal world the thread is finished
and the FF-A message is forwarded to the Normal World.

Whenever a SVC exception is received from an SP, the whole context is
saved and executions is resumed in S-EL1. The first 8 register (FF-A
registers x0-x7) contain the FF-A message and are used to handle the
message by the SPMC.

Signed-off-by: Jelle Sels <jelle.sels@arm.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: mutex: mutex is abstract pull it from arch folder

This commit moves mutex* and wait_queue* from arch folder to core/kernel
to make it architecture-independent.

Signed-off-by: Marouene Boubakr

core: mutex: mutex is abstract pull it from arch folder

This commit moves mutex* and wait_queue* from arch folder to core/kernel
to make it architecture-independent.

Signed-off-by: Marouene Boubakri <marouene.boubakri@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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build: core: add missing dependencies when generating assembly constants

The header file <generated/asm-defines.h> is created at build time. It
contains macro definitions for various offsets in C st

build: core: add missing dependencies when generating assembly constants

The header file <generated/asm-defines.h> is created at build time. It
contains macro definitions for various offsets in C structures and is
especially useful for use from assembler code. It is generated from
asm-defines.c, which includes a number of header files, of which two
are also generated at build time: <generated/arm32_sysreg.h> and
<generated/arm32_gicv3_sysreg.h>.

These dependencies are expressed nowhere in the makefiles and therefore
build errors can result. For example:

$ make out/arm-plat-vexpress/core/include/generated/.asm-defines.s
CHK out/arm-plat-vexpress/conf.mk
UPD out/arm-plat-vexpress/conf.mk
CHK out/arm-plat-vexpress/include/generated/conf.h
UPD out/arm-plat-vexpress/include/generated/conf.h
CC out/arm-plat-vexpress/core/include/generated/.asm-defines.s
In file included from core/arch/arm/include/arm.h:99,
from core/arch/arm/include/kernel/thread.h:12,
from core/arch/arm/kernel/asm-defines.c:8:
core/arch/arm/include/arm32.h:167:10: fatal error: generated/arm32_sysreg.h: No such file or directory
167 | #include <generated/arm32_sysreg.h>
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

The error in [1] is believed to have the same root cause: during
parallel build the generated header file might have been created by one
job but not yet written to when another job would open it. The compiler
would see an empty file, thus the missing declarations.

Add the missing dependencies via a new variable at the location where
asm-defines.c is added to the build.

Note that the other core .c files depending on these generated sysreg
headers are not affected because their .o files explicitly depend on
FORCE-GENSRCcore (which generates the headers).

Link: [1] https://ci.linaro.org/job/ledge-oe-premerge-ci/182/DISTRO=rpb,MACHINE=ledge-ti-am572x,label=docker-buster-amd64/console
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: extract ldelf related code from user_ta.c

Moves ldelf functionality from user_ta.c to a separate file.
This is the first step for decoupling ldelf from user TAs.

Reviewed-by: Jens Wiklander <

core: extract ldelf related code from user_ta.c

Moves ldelf functionality from user_ta.c to a separate file.
This is the first step for decoupling ldelf from user TAs.

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Balint Dobszay <balint.dobszay@arm.com>

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core: add secure partitions store

SPs need to be started as part of the initialisation process of the
OP-TEE kernel. The secure partition store uses the embedded_ts store to
load SPs

Signed-off-by:

core: add secure partitions store

SPs need to be started as part of the initialisation process of the
OP-TEE kernel. The secure partition store uses the embedded_ts store to
load SPs

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

show more ...