2019-01-03 22:32 UTC-0800 ~ Y Song <ys114...@gmail.com>
> On Thu, Jan 3, 2019 at 9:26 AM Quentin Monnet
> <quentin.mon...@netronome.com> wrote:
>>
>> Add a set of probes to dump the eBPF-related parameters available from
>> /proc/: availability of bpf() syscall for unprivileged users,
>> JIT compiler status and hardening status, kallsyms exports status.
>>
>> Sample output:
>>
>> # bpftool feature probe kernel
>> Scanning system configuration...
>> bpf() syscall for unprivileged users is enabled
>> JIT compiler is disabled
>> JIT compiler hardening is disabled
>> JIT compiler kallsyms exports are disabled
>> ...
>>
>> # bpftool --json --pretty feature probe kernel
>> {
>> "system_config": {
>> "unprivileged_bpf_disabled": 0,
>> "bpf_jit_enable": 0,
>> "bpf_jit_harden": 0,
>> "bpf_jit_kallsyms": 0
>
> We have bpf_jit_limit as well to prevent excessive memory for
> unprivileged users.
> Do we want to add it here?
Yes, thanks!
