From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3D238B667 for ; Wed, 13 Sep 2023 21:46:12 +0000 (UTC) Received: from smtp-fw-80006.amazon.com (smtp-fw-80006.amazon.com [99.78.197.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B2FF4199F; Wed, 13 Sep 2023 14:46:11 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.02,144,1688428800"; d="scan'208";a="238514835" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-pdx-2a-m6i4x-af372327.us-west-2.amazon.com) ([10.25.36.214]) by smtp-border-fw-80006.pdx80.corp.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Sep 2023 21:46:08 +0000 Received: from EX19MTAUEC002.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan3.pdx.amazon.com [10.236.137.198]) by email-inbound-relay-pdx-2a-m6i4x-af372327.us-west-2.amazon.com (Postfix) with ESMTPS id 6D00360DE4; Wed, 13 Sep 2023 21:46:07 +0000 (UTC) Received: from EX19MTAUEA001.ant.amazon.com (10.252.134.203) by EX19MTAUEC002.ant.amazon.com (10.252.135.253) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.37; Wed, 13 Sep 2023 21:45:54 +0000 Received: from dev-dsk-pjy-1a-76bc80b3.eu-west-1.amazon.com (10.15.97.110) by mail-relay.amazon.com (10.252.134.102) with Microsoft SMTP Server id 15.2.1118.37 via Frontend Transport; Wed, 13 Sep 2023 21:45:54 +0000 Received: by dev-dsk-pjy-1a-76bc80b3.eu-west-1.amazon.com (Postfix, from userid 22993570) id 9CB32207F8; Wed, 13 Sep 2023 21:45:54 +0000 (UTC) From: Puranjay Mohan 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 , , , Subject: [PATCH bpf-next 0/1] bpf, arm64: support exceptions Date: Wed, 13 Sep 2023 21:45:54 +0000 Message-ID: <20230913214554.97356-1-puranjay12@gmail.com> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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