Jiaxun Yang bbefef2f07 bpf, mips: Implement DADDI workarounds for JIT ...

For DADDI errata we just workaround by disable immediate operation
for BPF_ADD / BPF_SUB to avoid generation of DADDIU.

All other use cases in JIT won't cause overflow thus they are all safe.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Link: https://lore.kernel.org/bpf/20230228113305.83751-2-jiaxun.yang@flygoat.com

2023-02-28 14:52:40 +01:00

..

bpf_jit_comp32.c

bpf, mips: No need to use min() to get MAX_TAIL_CALL_CNT

2022-08-29 15:38:14 +02:00

bpf_jit_comp64.c

bpf, mips: No need to use min() to get MAX_TAIL_CALL_CNT

2022-08-29 15:38:14 +02:00

bpf_jit_comp.c

bpf, mips: Implement DADDI workarounds for JIT

2023-02-28 14:52:40 +01:00

bpf_jit_comp.h

mips, bpf: Fix reference to non-existing Kconfig symbol

2021-11-30 17:19:36 +01:00

Makefile

bpf, mips: Clean up config options about JIT

2021-10-11 15:29:37 +02:00