Björn Töpel 7112cd26e6 riscv, bpf: Track both a0 (RISC-V ABI) and a5 (BPF) return values ... The RISC-V BPF uses a5 for BPF return values, which are zero-extended, whereas the RISC-V ABI uses a0 which is sign-extended. In other words, a5 and a0 can differ, and are used in different context. The BPF trampoline are used for both BPF programs, and regular kernel functions. Make sure that the RISC-V BPF trampoline saves, and restores both a0 and a5. Fixes: 49b5e77ae3 ("riscv, bpf: Add bpf trampoline support for RV64") Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20231004120706.52848-3-bjorn@kernel.org		2023-10-09 15:21:25 +02:00
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bpf_jit.h	bpf, riscv: use prog pack allocator in the BPF JIT	2023-09-06 06:26:07 -07:00
bpf_jit_comp32.c	bpf: Change value of MAX_TAIL_CALL_CNT from 32 to 33	2021-11-16 14:03:15 +01:00
bpf_jit_comp64.c	riscv, bpf: Track both a0 (RISC-V ABI) and a5 (BPF) return values	2023-10-09 15:21:25 +02:00
bpf_jit_core.c	bpf, riscv: use prog pack allocator in the BPF JIT	2023-09-06 06:26:07 -07:00
Makefile	riscv, bpf: Add RV32G eBPF JIT	2020-03-05 16:13:47 +01:00