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bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT
[ Upstream commit 5d63ae9082
]
Expose the maximum amount of useable memory from the arm64 JIT.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211014142554.53120-3-lmb@cloudflare.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -1134,6 +1134,11 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
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return prog;
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}
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u64 bpf_jit_alloc_exec_limit(void)
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{
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return BPF_JIT_REGION_SIZE;
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}
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void *bpf_jit_alloc_exec(unsigned long size)
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{
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return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,
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