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306551362c
This patch disables trapping to EL3 when the FEAT_D128 specific registers are accessed by setting the SCR_EL3.D128En bit. If FEAT_D128 is implemented, then FEAT_SYSREG128 is implemented. With FEAT_SYSREG128 certain system registers are treated as 128-bit, so we should be context saving and restoring 128-bits instead of 64-bit when FEAT_D128 is enabled. FEAT_SYSREG128 adds support for MRRS and MSRR instruction which helps us to read write to 128-bit system register. Refer to Arm Architecture Manual for further details. Change the FVP platform to default to handling this as a dynamic option so the right decision can be made by the code at runtime. Change-Id: I1a53db5eac29e56c8fbdcd4961ede3abfcb2411a Signed-off-by: Jayanth Dodderi Chidanand <jayanthdodderi.chidanand@arm.com> Signed-off-by: Govindraj Raja <govindraj.raja@arm.com> |
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| .. | ||
| aarch32 | ||
| aarch64 | ||
| bl_aux_params | ||
| compiler-rt | ||
| coreboot | ||
| cpus | ||
| debugfs | ||
| el3_runtime | ||
| extensions | ||
| fconf | ||
| gpt_rme | ||
| libc | ||
| libfdt | ||
| locks | ||
| mpmm | ||
| optee | ||
| pmf | ||
| psa | ||
| psci | ||
| romlib | ||
| semihosting | ||
| stack_protector | ||
| transfer_list | ||
| utils | ||
| xlat_mpu | ||
| xlat_tables | ||
| xlat_tables_v2 | ||
| zlib | ||