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Notif haf #6534

Merged
merged 5 commits into from
Jan 30, 2024
Merged

Notif haf #6534

merged 5 commits into from
Jan 30, 2024

Commits on Jan 29, 2024

  1. core: arm64.h: add DAIFBIT_{NATIVE,FOREIGN}_INTR 

    Adds the two defines DAIFBIT_NATIVE_INTR and DAIFBIT_FOREIGN_INTR based
on DAIFBIT_IRQ and DAIFBIT_FIQ analogous with how
THREAD_EXCP_FOREIGN_INTR and THREAD_EXCP_NATIVE_INTR are defined.

DAIFBIT_NATIVE_INTR and DAIFBIT_FOREIGN_INTR can be used in assembly
instead of using #ifdef CFG_CORE_IRQ_IS_NATIVE_INTR.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @jenswi-linaro
    jenswi-linaro committed Jan 29, 2024
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  2. core: ffa: exit with native interrupts unmasked 

    When exiting using the main exit/re-entry loop in
ffa_msg_send_direct_resp(), unmask native interrupts before the SMC
instruction and mask them again on re-entry. This guarantees that native
(aka secure) interrupts are not pending during exit. This also means
that when entering with FFA_INTERRUPT the interrupt will be handled
before thread_spmc_msg_recv() so there is no need to call
interrupt_main_handler() from thread_spmc_msg_recv() any longer.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @jenswi-linaro
    jenswi-linaro committed Jan 29, 2024
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  3. core: move hafnium.h into hfic.c 

    hafnium.h is only included from hfic.c so move the content into that
file instead. Comments trying to describe the paravirtualized interface
are removed and replaced by a link to official documentation.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @jenswi-linaro
    jenswi-linaro committed Jan 29, 2024
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  4. core: hfic: fix HF_INTERRUPT HVC calls 

    The HF_INTERRUPT HVC calls has until now not been completely correct.
HF_INTERRUPT_ENABLE is used to enable/disable a virtual interrupt on the
current CPU while HF_INTERRUPT_RECONFIGURE is used to globally enable a
physical interrupt. So update the HFIC callbacks accordingly.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @jenswi-linaro
    jenswi-linaro committed Jan 29, 2024
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  5. core: ffa: add notifications with SPMC at S-EL2 or EL3 

    Adds support for asynchronous notifications via FF-A with SPMC at S-EL2
or EL3.

The SPMC is probed using FFA_FEATURES(FFA_NOTIFICATION_SET) to see if
the SPMC is support FF-A notifications.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
    @jenswi-linaro
    jenswi-linaro committed Jan 29, 2024
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