RISC-V: fix auipc-jalr addresses in patched alternatives

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Alternatives live in a different section, so addresses used by call
functions will point to wrong locations after the patch got applied.

Similar to arm64, adjust the location to consider that offset.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Link: https://lore.kernel.org/r/20221223221332.4127602-13-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

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Heiko Stuebner 2022-12-23 23:13:32 +01:00 • committed by Palmer Dabbelt

parent 47f05757d3

commit 27c653c065

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3 changed files with 63 additions and 1 deletions

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3

arch/riscv/include/asm/alternative.h

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56

arch/riscv/kernel/alternative.c

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5

arch/riscv/kernel/cpufeature.c

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