Searched hist:"1 d184480d405610b93f6e51baba25a0ca27e3fdb" (Results 1 – 4 of 4) sorted by relevance
| /optee_os/core/arch/arm/include/kernel/ |
| H A D | thread_arch.h | 1d184480d405610b93f6e51baba25a0ca27e3fdb Thu Oct 05 13:19:55 UTC 2023 Jens Wiklander <jens.wiklander@linaro.org> core: ffa: preserve 64bit smccc when possible
Prior to this patch when a FFA_MSG_SEND_DIRECT_REQ_64 was received the
response was sent as FFA_MSG_SEND_DIRECT_RESP_32. While not breaking
with the FF-A specification, it's still a bit unexpected and will cause
an error in the FF-A framework driver. So fix this by keeping track of
the SMCCC (SMC Calling Convention) used during the current
FFA_MSG_SEND_DIRECT_REQ and respond with matching SMCCC.
This has no impact on AArch32 mode since only the 32-bit SMCCC is valid
in that case. The greatest impact on AArch64 is that we must be able to
find out the current SMCCC during RPC, this means storing it in struct
thread_core_local to be able to access it in assembly low level
routines.
Support for FFA_MSG_SEND_DIRECT_REQ_64 is also advertised in
FFA_FEATURES.
Fixes: 15da69cff2ca ("core: ffa: Enable handling 64-bit direct messages")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
|
| /optee_os/core/arch/arm/kernel/ |
| H A D | thread_spmc_a64.S | 1d184480d405610b93f6e51baba25a0ca27e3fdb Thu Oct 05 13:19:55 UTC 2023 Jens Wiklander <jens.wiklander@linaro.org> core: ffa: preserve 64bit smccc when possible
Prior to this patch when a FFA_MSG_SEND_DIRECT_REQ_64 was received the
response was sent as FFA_MSG_SEND_DIRECT_RESP_32. While not breaking
with the FF-A specification, it's still a bit unexpected and will cause
an error in the FF-A framework driver. So fix this by keeping track of
the SMCCC (SMC Calling Convention) used during the current
FFA_MSG_SEND_DIRECT_REQ and respond with matching SMCCC.
This has no impact on AArch32 mode since only the 32-bit SMCCC is valid
in that case. The greatest impact on AArch64 is that we must be able to
find out the current SMCCC during RPC, this means storing it in struct
thread_core_local to be able to access it in assembly low level
routines.
Support for FFA_MSG_SEND_DIRECT_REQ_64 is also advertised in
FFA_FEATURES.
Fixes: 15da69cff2ca ("core: ffa: Enable handling 64-bit direct messages")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
|
| H A D | asm-defines.c | 1d184480d405610b93f6e51baba25a0ca27e3fdb Thu Oct 05 13:19:55 UTC 2023 Jens Wiklander <jens.wiklander@linaro.org> core: ffa: preserve 64bit smccc when possible
Prior to this patch when a FFA_MSG_SEND_DIRECT_REQ_64 was received the
response was sent as FFA_MSG_SEND_DIRECT_RESP_32. While not breaking
with the FF-A specification, it's still a bit unexpected and will cause
an error in the FF-A framework driver. So fix this by keeping track of
the SMCCC (SMC Calling Convention) used during the current
FFA_MSG_SEND_DIRECT_REQ and respond with matching SMCCC.
This has no impact on AArch32 mode since only the 32-bit SMCCC is valid
in that case. The greatest impact on AArch64 is that we must be able to
find out the current SMCCC during RPC, this means storing it in struct
thread_core_local to be able to access it in assembly low level
routines.
Support for FFA_MSG_SEND_DIRECT_REQ_64 is also advertised in
FFA_FEATURES.
Fixes: 15da69cff2ca ("core: ffa: Enable handling 64-bit direct messages")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
|
| H A D | thread_spmc.c | 1d184480d405610b93f6e51baba25a0ca27e3fdb Thu Oct 05 13:19:55 UTC 2023 Jens Wiklander <jens.wiklander@linaro.org> core: ffa: preserve 64bit smccc when possible
Prior to this patch when a FFA_MSG_SEND_DIRECT_REQ_64 was received the
response was sent as FFA_MSG_SEND_DIRECT_RESP_32. While not breaking
with the FF-A specification, it's still a bit unexpected and will cause
an error in the FF-A framework driver. So fix this by keeping track of
the SMCCC (SMC Calling Convention) used during the current
FFA_MSG_SEND_DIRECT_REQ and respond with matching SMCCC.
This has no impact on AArch32 mode since only the 32-bit SMCCC is valid
in that case. The greatest impact on AArch64 is that we must be able to
find out the current SMCCC during RPC, this means storing it in struct
thread_core_local to be able to access it in assembly low level
routines.
Support for FFA_MSG_SEND_DIRECT_REQ_64 is also advertised in
FFA_FEATURES.
Fixes: 15da69cff2ca ("core: ffa: Enable handling 64-bit direct messages")
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@foss.st.com>
|