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bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT

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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
This commit is contained in:
Lorenz Bauer
2021-10-14 15:25:52 +01:00
committed by Alexei Starovoitov
parent 8f04db78e4
commit 5d63ae9082
1 changed files with 5 additions and 0 deletions
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5
arch/arm64/net/bpf_jit_comp.c
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@@ -1136,6 +1136,11 @@ out:
return prog; return prog;
} }
u64 bpf_jit_alloc_exec_limit(void)
{
return BPF_JIT_REGION_SIZE;
}
void *bpf_jit_alloc_exec(unsigned long size) void *bpf_jit_alloc_exec(unsigned long size)
{ {
return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START, return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,