From 5d63ae908242f028bd10860cba98450d11c079b8 Mon Sep 17 00:00:00 2001 From: Lorenz Bauer Date: Thu, 14 Oct 2021 15:25:52 +0100 Subject: bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT Expose the maximum amount of useable memory from the arm64 JIT. Signed-off-by: Lorenz Bauer Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20211014142554.53120-3-lmb@cloudflare.com --- arch/arm64/net/bpf_jit_comp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c index 41c23f474ea6..803e7773fa86 100644 --- a/arch/arm64/net/bpf_jit_comp.c +++ b/arch/arm64/net/bpf_jit_comp.c @@ -1136,6 +1136,11 @@ 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, -- cgit v1.2.3-58-ga151