From: Lorenz Bauer lmb@cloudflare.com
[ Upstream commit 8f04db78e4e36a5d4858ce841a3e9cc3d69bde36 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/net/bpf_jit_core.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/riscv/net/bpf_jit_core.c b/arch/riscv/net/bpf_jit_core.c index 5d247198c30d3..753d85bdfad07 100644 --- a/arch/riscv/net/bpf_jit_core.c +++ b/arch/riscv/net/bpf_jit_core.c @@ -167,6 +167,11 @@ 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,