* [PATCH bpf-next 0/1] bpf, arm64: support exceptions
@ 2023-09-13 21:45 Puranjay Mohan
2023-09-13 21:52 ` Puranjay Mohan
0 siblings, 1 reply; 3+ messages in thread
From: Puranjay Mohan @ 2023-09-13 21:45 UTC (permalink / raw)
To: puranjaymohan, Alexei Starovoitov, Daniel Borkmann,
Andrii Nakryiko, Martin KaFai Lau, Song Liu, Yonghong Song,
John Fastabend, KP Singh, Stanislav Fomichev, Hao Luo, Jiri Olsa,
Zi Shen Lim, Catalin Marinas, Will Deacon, bpf, linux-arm-kernel,
linux-kernel
Kumar is working on adding exceptions to BPF and enabling it on x86 [1].
I am working with him to enable it on ARM64 and will later do it for
other architectures when the basic exceptions support is upstream.
This patch enables the support on ARM64, all sefltests are passing:
# ./test_progs -a exceptions
#74/1 exceptions/exception_throw_always_1:OK
#74/2 exceptions/exception_throw_always_2:OK
#74/3 exceptions/exception_throw_unwind_1:OK
#74/4 exceptions/exception_throw_unwind_2:OK
#74/5 exceptions/exception_throw_default:OK
#74/6 exceptions/exception_throw_default_value:OK
#74/7 exceptions/exception_tail_call:OK
#74/8 exceptions/exception_ext:OK
#74/9 exceptions/exception_ext_mod_cb_runtime:OK
#74/10 exceptions/exception_throw_subprog:OK
#74/11 exceptions/exception_assert_nz_gfunc:OK
#74/12 exceptions/exception_assert_zero_gfunc:OK
#74/13 exceptions/exception_assert_neg_gfunc:OK
#74/14 exceptions/exception_assert_pos_gfunc:OK
#74/15 exceptions/exception_assert_negeq_gfunc:OK
#74/16 exceptions/exception_assert_poseq_gfunc:OK
#74/17 exceptions/exception_assert_nz_gfunc_with:OK
#74/18 exceptions/exception_assert_zero_gfunc_with:OK
#74/19 exceptions/exception_assert_neg_gfunc_with:OK
#74/20 exceptions/exception_assert_pos_gfunc_with:OK
#74/21 exceptions/exception_assert_negeq_gfunc_with:OK
#74/22 exceptions/exception_assert_poseq_gfunc_with:OK
#74/23 exceptions/exception_bad_assert_nz_gfunc:OK
#74/24 exceptions/exception_bad_assert_zero_gfunc:OK
#74/25 exceptions/exception_bad_assert_neg_gfunc:OK
#74/26 exceptions/exception_bad_assert_pos_gfunc:OK
#74/27 exceptions/exception_bad_assert_negeq_gfunc:OK
#74/28 exceptions/exception_bad_assert_poseq_gfunc:OK
#74/29 exceptions/exception_bad_assert_nz_gfunc_with:OK
#74/30 exceptions/exception_bad_assert_zero_gfunc_with:OK
#74/31 exceptions/exception_bad_assert_neg_gfunc_with:OK
#74/32 exceptions/exception_bad_assert_pos_gfunc_with:OK
#74/33 exceptions/exception_bad_assert_negeq_gfunc_with:OK
#74/34 exceptions/exception_bad_assert_poseq_gfunc_with:OK
#74/35 exceptions/exception_assert_range:OK
#74/36 exceptions/exception_assert_range_with:OK
#74/37 exceptions/exception_bad_assert_range:OK
#74/38 exceptions/exception_bad_assert_range_with:OK
#74/39 exceptions/non-throwing fentry -> exception_cb:OK
#74/40 exceptions/throwing fentry -> exception_cb:OK
#74/41 exceptions/non-throwing fexit -> exception_cb:OK
#74/42 exceptions/throwing fexit -> exception_cb:OK
#74/43 exceptions/throwing extension (with custom cb) -> exception_cb:OK
#74/44 exceptions/throwing extension -> global func in exception_cb:OK
#74/45 exceptions/exception_ext_mod_cb_runtime:OK
#74/46 exceptions/throwing extension (with custom cb) -> global func in exception_cb:OK
#74/47 exceptions/exception_ext:OK
#74/48 exceptions/non-throwing fentry -> non-throwing subprog:OK
#74/49 exceptions/throwing fentry -> non-throwing subprog:OK
#74/50 exceptions/non-throwing fentry -> throwing subprog:OK
#74/51 exceptions/throwing fentry -> throwing subprog:OK
#74/52 exceptions/non-throwing fexit -> non-throwing subprog:OK
#74/53 exceptions/throwing fexit -> non-throwing subprog:OK
#74/54 exceptions/non-throwing fexit -> throwing subprog:OK
#74/55 exceptions/throwing fexit -> throwing subprog:OK
#74/56 exceptions/non-throwing fmod_ret -> non-throwing subprog:OK
#74/57 exceptions/non-throwing fmod_ret -> non-throwing global subprog:OK
#74/58 exceptions/non-throwing extension -> non-throwing subprog:OK
#74/59 exceptions/non-throwing extension -> throwing subprog:OK
#74/60 exceptions/non-throwing extension -> non-throwing subprog:OK
#74/61 exceptions/non-throwing extension -> throwing global subprog:OK
#74/62 exceptions/throwing extension -> throwing global subprog:OK
#74/63 exceptions/throwing extension -> non-throwing global subprog:OK
#74/64 exceptions/non-throwing extension -> main subprog:OK
#74/65 exceptions/throwing extension -> main subprog:OK
#74/66 exceptions/reject_exception_cb_type_1:OK
#74/67 exceptions/reject_exception_cb_type_2:OK
#74/68 exceptions/reject_exception_cb_type_3:OK
#74/69 exceptions/reject_exception_cb_type_4:OK
#74/70 exceptions/reject_async_callback_throw:OK
#74/71 exceptions/reject_with_lock:OK
#74/72 exceptions/reject_subprog_with_lock:OK
#74/73 exceptions/reject_with_rcu_read_lock:OK
#74/74 exceptions/reject_subprog_with_rcu_read_lock:OK
#74/75 exceptions/reject_with_rbtree_add_throw:OK
#74/76 exceptions/reject_with_reference:OK
#74/77 exceptions/reject_with_cb_reference:OK
#74/78 exceptions/reject_with_cb:OK
#74/79 exceptions/reject_with_subprog_reference:OK
#74/80 exceptions/reject_throwing_exception_cb:OK
#74/81 exceptions/reject_exception_cb_call_global_func:OK
#74/82 exceptions/reject_exception_cb_call_static_func:OK
#74/83 exceptions/reject_multiple_exception_cb:OK
#74/84 exceptions/reject_exception_throw_cb:OK
#74/85 exceptions/reject_exception_throw_cb_diff:OK
#74/86 exceptions/reject_set_exception_cb_bad_ret1:OK
#74/87 exceptions/reject_set_exception_cb_bad_ret2:OK
#74/88 exceptions/check_assert_eq_int_min:OK
#74/89 exceptions/check_assert_eq_int_max:OK
#74/90 exceptions/check_assert_eq_zero:OK
#74/91 exceptions/check_assert_eq_llong_min:OK
#74/92 exceptions/check_assert_eq_llong_max:OK
#74/93 exceptions/check_assert_lt_pos:OK
#74/94 exceptions/check_assert_lt_zero:OK
#74/95 exceptions/check_assert_lt_neg:OK
#74/96 exceptions/check_assert_le_pos:OK
#74/97 exceptions/check_assert_le_zero:OK
#74/98 exceptions/check_assert_le_neg:OK
#74/99 exceptions/check_assert_gt_pos:OK
#74/100 exceptions/check_assert_gt_zero:OK
#74/101 exceptions/check_assert_gt_neg:OK
#74/102 exceptions/check_assert_ge_pos:OK
#74/103 exceptions/check_assert_ge_zero:OK
#74/104 exceptions/check_assert_ge_neg:OK
#74/105 exceptions/check_assert_range_s64:OK
#74/106 exceptions/check_assert_range_u64:OK
#74/107 exceptions/check_assert_single_range_s64:OK
#74/108 exceptions/check_assert_single_range_u64:OK
#74/109 exceptions/check_assert_generic:OK
#74/110 exceptions/check_assert_with_return:OK
#74 exceptions:OK
Summary: 1/110 PASSED, 0 SKIPPED, 0 FAILED
[1] https://lore.kernel.org/bpf/20230912233214.1518551-1-memxor@gmail.com/
Puranjay Mohan (1):
bpf, arm64: support exceptions
arch/arm64/net/bpf_jit_comp.c | 98 ++++++++++++++++++++++++++++-------
1 file changed, 79 insertions(+), 19 deletions(-)
--
2.40.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH bpf-next 0/1] bpf, arm64: support exceptions
2023-09-13 21:45 [PATCH bpf-next 0/1] bpf, arm64: support exceptions Puranjay Mohan
@ 2023-09-13 21:52 ` Puranjay Mohan
0 siblings, 0 replies; 3+ messages in thread
From: Puranjay Mohan @ 2023-09-13 21:52 UTC (permalink / raw)
To: Puranjay Mohan
Cc: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo, Jiri Olsa, Zi Shen Lim,
Catalin Marinas, Will Deacon, bpf, linux-arm-kernel,
linux-kernel
On Wed, 13 Sept 2023 at 23:46, Puranjay Mohan <puranjay12@gmail.com> wrote:
>
> Kumar is working on adding exceptions to BPF and enabling it on x86 [1].
> I am working with him to enable it on ARM64 and will later do it for
> other architectures when the basic exceptions support is upstream.
>
Sorry for the noise.
Please ignore this [resent] email.
Thanks,
Puranjay
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH bpf-next 0/1] bpf, arm64: support exceptions
@ 2023-09-12 23:39 Puranjay Mohan
0 siblings, 0 replies; 3+ messages in thread
From: Puranjay Mohan @ 2023-09-12 23:39 UTC (permalink / raw)
To: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko,
Martin KaFai Lau, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo, Jiri Olsa, Zi Shen Lim,
Catalin Marinas, Will Deacon, bpf, linux-arm-kernel,
linux-kernel
Cc: puranjay12, memxor
Kumar is working on adding exceptions to BPF and enabling it on x86 [1].
I am working with him to enable it on ARM64 and will later do it for
other architectures when the basic exceptions support is upstream.
This patch enables the support on ARM64, all sefltests are passing:
# ./test_progs -a exceptions
#74/1 exceptions/exception_throw_always_1:OK
#74/2 exceptions/exception_throw_always_2:OK
#74/3 exceptions/exception_throw_unwind_1:OK
#74/4 exceptions/exception_throw_unwind_2:OK
#74/5 exceptions/exception_throw_default:OK
#74/6 exceptions/exception_throw_default_value:OK
#74/7 exceptions/exception_tail_call:OK
#74/8 exceptions/exception_ext:OK
#74/9 exceptions/exception_ext_mod_cb_runtime:OK
#74/10 exceptions/exception_throw_subprog:OK
#74/11 exceptions/exception_assert_nz_gfunc:OK
#74/12 exceptions/exception_assert_zero_gfunc:OK
#74/13 exceptions/exception_assert_neg_gfunc:OK
#74/14 exceptions/exception_assert_pos_gfunc:OK
#74/15 exceptions/exception_assert_negeq_gfunc:OK
#74/16 exceptions/exception_assert_poseq_gfunc:OK
#74/17 exceptions/exception_assert_nz_gfunc_with:OK
#74/18 exceptions/exception_assert_zero_gfunc_with:OK
#74/19 exceptions/exception_assert_neg_gfunc_with:OK
#74/20 exceptions/exception_assert_pos_gfunc_with:OK
#74/21 exceptions/exception_assert_negeq_gfunc_with:OK
#74/22 exceptions/exception_assert_poseq_gfunc_with:OK
#74/23 exceptions/exception_bad_assert_nz_gfunc:OK
#74/24 exceptions/exception_bad_assert_zero_gfunc:OK
#74/25 exceptions/exception_bad_assert_neg_gfunc:OK
#74/26 exceptions/exception_bad_assert_pos_gfunc:OK
#74/27 exceptions/exception_bad_assert_negeq_gfunc:OK
#74/28 exceptions/exception_bad_assert_poseq_gfunc:OK
#74/29 exceptions/exception_bad_assert_nz_gfunc_with:OK
#74/30 exceptions/exception_bad_assert_zero_gfunc_with:OK
#74/31 exceptions/exception_bad_assert_neg_gfunc_with:OK
#74/32 exceptions/exception_bad_assert_pos_gfunc_with:OK
#74/33 exceptions/exception_bad_assert_negeq_gfunc_with:OK
#74/34 exceptions/exception_bad_assert_poseq_gfunc_with:OK
#74/35 exceptions/exception_assert_range:OK
#74/36 exceptions/exception_assert_range_with:OK
#74/37 exceptions/exception_bad_assert_range:OK
#74/38 exceptions/exception_bad_assert_range_with:OK
#74/39 exceptions/non-throwing fentry -> exception_cb:OK
#74/40 exceptions/throwing fentry -> exception_cb:OK
#74/41 exceptions/non-throwing fexit -> exception_cb:OK
#74/42 exceptions/throwing fexit -> exception_cb:OK
#74/43 exceptions/throwing extension (with custom cb) -> exception_cb:OK
#74/44 exceptions/throwing extension -> global func in exception_cb:OK
#74/45 exceptions/exception_ext_mod_cb_runtime:OK
#74/46 exceptions/throwing extension (with custom cb) -> global func in exception_cb:OK
#74/47 exceptions/exception_ext:OK
#74/48 exceptions/non-throwing fentry -> non-throwing subprog:OK
#74/49 exceptions/throwing fentry -> non-throwing subprog:OK
#74/50 exceptions/non-throwing fentry -> throwing subprog:OK
#74/51 exceptions/throwing fentry -> throwing subprog:OK
#74/52 exceptions/non-throwing fexit -> non-throwing subprog:OK
#74/53 exceptions/throwing fexit -> non-throwing subprog:OK
#74/54 exceptions/non-throwing fexit -> throwing subprog:OK
#74/55 exceptions/throwing fexit -> throwing subprog:OK
#74/56 exceptions/non-throwing fmod_ret -> non-throwing subprog:OK
#74/57 exceptions/non-throwing fmod_ret -> non-throwing global subprog:OK
#74/58 exceptions/non-throwing extension -> non-throwing subprog:OK
#74/59 exceptions/non-throwing extension -> throwing subprog:OK
#74/60 exceptions/non-throwing extension -> non-throwing subprog:OK
#74/61 exceptions/non-throwing extension -> throwing global subprog:OK
#74/62 exceptions/throwing extension -> throwing global subprog:OK
#74/63 exceptions/throwing extension -> non-throwing global subprog:OK
#74/64 exceptions/non-throwing extension -> main subprog:OK
#74/65 exceptions/throwing extension -> main subprog:OK
#74/66 exceptions/reject_exception_cb_type_1:OK
#74/67 exceptions/reject_exception_cb_type_2:OK
#74/68 exceptions/reject_exception_cb_type_3:OK
#74/69 exceptions/reject_exception_cb_type_4:OK
#74/70 exceptions/reject_async_callback_throw:OK
#74/71 exceptions/reject_with_lock:OK
#74/72 exceptions/reject_subprog_with_lock:OK
#74/73 exceptions/reject_with_rcu_read_lock:OK
#74/74 exceptions/reject_subprog_with_rcu_read_lock:OK
#74/75 exceptions/reject_with_rbtree_add_throw:OK
#74/76 exceptions/reject_with_reference:OK
#74/77 exceptions/reject_with_cb_reference:OK
#74/78 exceptions/reject_with_cb:OK
#74/79 exceptions/reject_with_subprog_reference:OK
#74/80 exceptions/reject_throwing_exception_cb:OK
#74/81 exceptions/reject_exception_cb_call_global_func:OK
#74/82 exceptions/reject_exception_cb_call_static_func:OK
#74/83 exceptions/reject_multiple_exception_cb:OK
#74/84 exceptions/reject_exception_throw_cb:OK
#74/85 exceptions/reject_exception_throw_cb_diff:OK
#74/86 exceptions/reject_set_exception_cb_bad_ret1:OK
#74/87 exceptions/reject_set_exception_cb_bad_ret2:OK
#74/88 exceptions/check_assert_eq_int_min:OK
#74/89 exceptions/check_assert_eq_int_max:OK
#74/90 exceptions/check_assert_eq_zero:OK
#74/91 exceptions/check_assert_eq_llong_min:OK
#74/92 exceptions/check_assert_eq_llong_max:OK
#74/93 exceptions/check_assert_lt_pos:OK
#74/94 exceptions/check_assert_lt_zero:OK
#74/95 exceptions/check_assert_lt_neg:OK
#74/96 exceptions/check_assert_le_pos:OK
#74/97 exceptions/check_assert_le_zero:OK
#74/98 exceptions/check_assert_le_neg:OK
#74/99 exceptions/check_assert_gt_pos:OK
#74/100 exceptions/check_assert_gt_zero:OK
#74/101 exceptions/check_assert_gt_neg:OK
#74/102 exceptions/check_assert_ge_pos:OK
#74/103 exceptions/check_assert_ge_zero:OK
#74/104 exceptions/check_assert_ge_neg:OK
#74/105 exceptions/check_assert_range_s64:OK
#74/106 exceptions/check_assert_range_u64:OK
#74/107 exceptions/check_assert_single_range_s64:OK
#74/108 exceptions/check_assert_single_range_u64:OK
#74/109 exceptions/check_assert_generic:OK
#74/110 exceptions/check_assert_with_return:OK
#74 exceptions:OK
Summary: 1/110 PASSED, 0 SKIPPED, 0 FAILED
[1] https://lore.kernel.org/bpf/20230912233214.1518551-1-memxor@gmail.com/
Puranjay Mohan (1):
bpf, arm64: support exceptions
arch/arm64/net/bpf_jit_comp.c | 98 ++++++++++++++++++++++++++++-------
1 file changed, 79 insertions(+), 19 deletions(-)
--
2.40.1
^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-09-12 23:39 Puranjay Mohan
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