Searched hist:c413678c6ca61ffe33886f003b0403fb5f81b9c5 (Results 1 – 3 of 3) sorted by relevance
| /optee_os/core/include/drivers/ |
| H A D | stm32_risab.h | c413678c6ca61ffe33886f003b0403fb5f81b9c5 Tue Oct 01 08:09:38 UTC 2024 Gatien Chevallier <gatien.chevallier@foss.st.com> drivers: stm32_risab: add RISAB internal memory firewall driver
This driver implements the RISAB driver. Through RISAB registers, a
trusted compartment, or the compartment to which the page configuration
has been delegated, configures the firewall attributes necessary to
access a page.
Each RISAB is dedicated to a internal memory and can cover 128KBytes of
data, separated in 32 pages of 4 KBytes, containing 8 blocks each.
It is possible to align a RISAB secure and privilege regions
allocations with an ARM Cortex M, which defines in its address space
configurable regions with a 256Bytes granularity. The configuration
would be 512Bytes block-based in order to align the two.
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
|
| /optee_os/core/drivers/firewall/ |
| H A D | stm32_risab.c | c413678c6ca61ffe33886f003b0403fb5f81b9c5 Tue Oct 01 08:09:38 UTC 2024 Gatien Chevallier <gatien.chevallier@foss.st.com> drivers: stm32_risab: add RISAB internal memory firewall driver
This driver implements the RISAB driver. Through RISAB registers, a
trusted compartment, or the compartment to which the page configuration
has been delegated, configures the firewall attributes necessary to
access a page.
Each RISAB is dedicated to a internal memory and can cover 128KBytes of
data, separated in 32 pages of 4 KBytes, containing 8 blocks each.
It is possible to align a RISAB secure and privilege regions
allocations with an ARM Cortex M, which defines in its address space
configurable regions with a 256Bytes granularity. The configuration
would be 512Bytes block-based in order to align the two.
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
|
| H A D | sub.mk | c413678c6ca61ffe33886f003b0403fb5f81b9c5 Tue Oct 01 08:09:38 UTC 2024 Gatien Chevallier <gatien.chevallier@foss.st.com> drivers: stm32_risab: add RISAB internal memory firewall driver
This driver implements the RISAB driver. Through RISAB registers, a
trusted compartment, or the compartment to which the page configuration
has been delegated, configures the firewall attributes necessary to
access a page.
Each RISAB is dedicated to a internal memory and can cover 128KBytes of
data, separated in 32 pages of 4 KBytes, containing 8 blocks each.
It is possible to align a RISAB secure and privilege regions
allocations with an ARM Cortex M, which defines in its address space
configurable regions with a 256Bytes granularity. The configuration
would be 512Bytes block-based in order to align the two.
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@foss.st.com>
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