diff options
| author | Lorenz Bauer <lmb@cloudflare.com> | 2021-10-14 15:25:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-17 09:48:20 +0100 |
| commit | df8665c3983e8780271e018227d74de1c29df665 (patch) | |
| tree | c25a347a9d91ded22d5e54fb7ef40e103cdadec3 /arch/arm64/net | |
| parent | 8dd688ba675afefc554ea0960ac3449935e93596 (diff) | |
bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT
[ Upstream commit 5d63ae908242f028bd10860cba98450d11c079b8 ]
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>
Diffstat (limited to 'arch/arm64/net')
| -rw-r--r-- | arch/arm64/net/bpf_jit_comp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index afc7d41347f7..a343677837c7 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -996,6 +996,11 @@ out: 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, |