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LoongArch: BPF: Set bpf_jit_bypass_spec_v1/v4()

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JITs can set bpf_jit_bypass_spec_v1/v4() if they want the verifier to
skip analysis/patching for the respective vulnerability, it is safe to
set both bpf_jit_bypass_spec_v1/v4(), because there is no speculation
barrier instruction for LoongArch.

Suggested-by: Luis Gerhorst <luis.gerhorst@fau.de>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Tiezhu Yang 2025-08-05 19:00:22 +08:00 committed by Huacai Chen
parent c0fcc955ff
commit 8568df83ea
1 changed files with 10 additions and 0 deletions
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10
arch/loongarch/net/bpf_jit.c
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@ -1915,6 +1915,16 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
goto out_offset;
}
bool bpf_jit_bypass_spec_v1(void)
{
return true;
}
bool bpf_jit_bypass_spec_v4(void)
{
return true;
}
/* Indicate the JIT backend supports mixing bpf2bpf and tailcalls. */
bool bpf_jit_supports_subprog_tailcalls(void)
{