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bpf: Define bpf_jit_alloc_exec_limit for riscv JIT 

Expose the maximum amount of useable memory from the riscv JIT.

Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Luke Nelson <luke.r.nels@gmail.com>
Acked-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/bpf/20211014142554.53120-2-lmb@cloudflare.com
This commit is contained in:
Lorenz Bauer 2021-10-14 15:25:51 +01:00 committed by Alexei Starovoitov
parent 4225fea1cb
commit 8f04db78e4
1 changed files with 5 additions and 0 deletions
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5
arch/riscv/net/bpf_jit_core.c
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@ -166,6 +166,11 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog)
return prog;
}
u64 bpf_jit_alloc_exec_limit(void)
{
return BPF_JIT_REGION_SIZE;
}
void *bpf_jit_alloc_exec(unsigned long size)
{
return __vmalloc_node_range(size, PAGE_SIZE, BPF_JIT_REGION_START,