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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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| .. | ||
| tbbr | ||
| asm_macros_common.S | ||
| bl_common.h | ||
| bl_common.ld.h | ||
| build_message.h | ||
| debug.h | ||
| desc_image_load.h | ||
| ep_info.h | ||
| fdt_fixup.h | ||
| fdt_wrappers.h | ||
| feat_detect.h | ||
| image_decompress.h | ||
| interrupt_props.h | ||
| nv_cntr_ids.h | ||
| par.h | ||
| param_header.h | ||
| romlib.h | ||
| runtime_svc.h | ||
| sha_common_macros.h | ||
| tf_crc32.h | ||
| uuid.h | ||