Changes necessary to support SEPARATE_NOBITS_REGION feature
Since BL31 PROGBITS and BL31 NOBITS sections are going to be in non-adjacent memory regions, potentially far from each other, some fixes are needed to support it completely. 1. adr instruction only allows computing the effective address of a location only within 1MB range of the PC. However, adrp instruction together with an add permits position independent address of any location with 4GB range of PC. 2. Since BL31 _RW_END_ marks the end of BL31 image, care must be taken that it is aligned to page size since we map this memory region in BL31 using xlat_v2 lib utils which mandate alignment of image size to page granularity. Change-Id: I3451cc030d03cb2032db3cc088f0c0e2c84bffda Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com> |
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bl31/aarch64/bl31_entrypoint.S |
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bl31/aarch64/runtime_exceptions.S |
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bl31/bl31.ld.S |
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lib/el3_runtime/aarch64/cpu_data.S |
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