Searched hist:c72200357aed49fd51dc21e45d4396f5402df811 (Results 1 – 3 of 3) sorted by relevance
| /rk3399_ARM-atf/plat/arm/board/neoverse_rd/common/ras/ |
| H A D | nrd_ras_cpu.c | c72200357aed49fd51dc21e45d4396f5402df811 Mon Feb 03 12:00:56 UTC 2025 Manish Pandey <manish.pandey2@arm.com> fix(el3-runtime): replace CTX_ESR_EL3 with CTX_DOUBLE_FAULT_ESR
ESR_EL3 value is updated when an exception is taken to EL3 and its value
does not change until a new exception is taken to EL3. We need to save
ESR in context memory only when we expect nested exception in EL3.
The scenarios where we would expect nested EL3 execution are related
with FFH_SUPPORT, namely
1.Handling pending async EAs at EL3 boundry
- It uses CTX_SAVED_ESR_EL3 to preserve origins esr_el3
2.Double fault handling
- Introduce an explicit storage (CTX_DOUBLE_FAULT_ESR) for esr_el3
to take care of DobuleFault.
As the ESR context has been removed, read the register directly instead
of its context value in RD platform.
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I7720c5f03903f894a77413a235e3cc05c86f9c17
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| /rk3399_ARM-atf/bl31/aarch64/ |
| H A D | ea_delegate.S | c72200357aed49fd51dc21e45d4396f5402df811 Mon Feb 03 12:00:56 UTC 2025 Manish Pandey <manish.pandey2@arm.com> fix(el3-runtime): replace CTX_ESR_EL3 with CTX_DOUBLE_FAULT_ESR
ESR_EL3 value is updated when an exception is taken to EL3 and its value
does not change until a new exception is taken to EL3. We need to save
ESR in context memory only when we expect nested exception in EL3.
The scenarios where we would expect nested EL3 execution are related
with FFH_SUPPORT, namely
1.Handling pending async EAs at EL3 boundry
- It uses CTX_SAVED_ESR_EL3 to preserve origins esr_el3
2.Double fault handling
- Introduce an explicit storage (CTX_DOUBLE_FAULT_ESR) for esr_el3
to take care of DobuleFault.
As the ESR context has been removed, read the register directly instead
of its context value in RD platform.
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I7720c5f03903f894a77413a235e3cc05c86f9c17
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| /rk3399_ARM-atf/include/lib/el3_runtime/aarch64/ |
| H A D | context.h | c72200357aed49fd51dc21e45d4396f5402df811 Mon Feb 03 12:00:56 UTC 2025 Manish Pandey <manish.pandey2@arm.com> fix(el3-runtime): replace CTX_ESR_EL3 with CTX_DOUBLE_FAULT_ESR
ESR_EL3 value is updated when an exception is taken to EL3 and its value
does not change until a new exception is taken to EL3. We need to save
ESR in context memory only when we expect nested exception in EL3.
The scenarios where we would expect nested EL3 execution are related
with FFH_SUPPORT, namely
1.Handling pending async EAs at EL3 boundry
- It uses CTX_SAVED_ESR_EL3 to preserve origins esr_el3
2.Double fault handling
- Introduce an explicit storage (CTX_DOUBLE_FAULT_ESR) for esr_el3
to take care of DobuleFault.
As the ESR context has been removed, read the register directly instead
of its context value in RD platform.
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: I7720c5f03903f894a77413a235e3cc05c86f9c17
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