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/rk3399_ARM-atf/bl31/aarch64/
H A Dea_delegate.S7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
H A Druntime_exceptions.S7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
/rk3399_ARM-atf/include/arch/aarch64/
H A Del3_common_macros.S7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
/rk3399_ARM-atf/lib/el3_runtime/aarch64/
H A Dcontext.S7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
/rk3399_ARM-atf/make_helpers/
H A Ddefaults.mk7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>
/rk3399_ARM-atf/
H A DMakefile7d33ffe4c116506ed63e820d5b6edad81680cd11 Tue May 25 17:09:34 UTC 2021 Daniel Boulby <daniel.boulby@arm.com> fix(el3-runtime): set unset pstate bits to default

During a transition to a higher EL some of the PSTATE bits are not set
by hardware, this means that their state may be leaked from lower ELs.
This patch sets those bits to a default value upon entry to EL3.

This patch was tested using a debugger to check the PSTATE values
are correctly set. As well as adding a test in the next patch to
ensure the PSTATE in lower ELs is still maintained after this change.

Change-Id: Ie546acbca7b9aa3c86bd68185edded91b2a64ae5
Signed-off-by: Daniel Boulby <daniel.boulby@arm.com>