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Wed, 22 Jul 2026 18:36:01 +0800 (CST) Received: from kwepemf100007.china.huawei.com (unknown [7.202.181.221]) by mail.maildlp.com (Postfix) with ESMTPS id D542A40579; Wed, 22 Jul 2026 18:45:30 +0800 (CST) Received: from [10.67.110.68] (10.67.110.68) by kwepemf100007.china.huawei.com (7.202.181.221) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Wed, 22 Jul 2026 18:45:29 +0800 Message-ID: <21722add-9368-412d-9f93-897ff82f1542@huawei.com> Date: Wed, 22 Jul 2026 18:45:29 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH bpf-next v4 3/3] selftests/bpf: enable timed may_goto tests for riscv64 Content-Language: en-US To: Feng Jiang , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , Luke Nelson , Xi Wang , =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , Puranjay Mohan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Shuah Khan , Ihor Solodrai CC: , , , References: <20260722-riscv-bpf-timed-may-goto-v4-0-e117e6337bc7@kylinos.cn> <20260722-riscv-bpf-timed-may-goto-v4-3-e117e6337bc7@kylinos.cn> From: Pu Lehui In-Reply-To: <20260722-riscv-bpf-timed-may-goto-v4-3-e117e6337bc7@kylinos.cn> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: kwepems500001.china.huawei.com (7.221.188.70) To kwepemf100007.china.huawei.com (7.202.181.221) On 2026/7/22 12:21, Feng Jiang wrote: > Enable verifier_may_goto_1 (raw instruction tests), stream_cond_break > (250ms timeout path), and the may_goto_interaction fastcall test on > riscv64 now that the JIT supports timed may_goto. > > Signed-off-by: Feng Jiang > --- > tools/testing/selftests/bpf/progs/stream.c | 1 + > tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c | 3 ++- > tools/testing/selftests/bpf/progs/verifier_may_goto_1.c | 4 ++++ > 3 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/bpf/progs/stream.c b/tools/testing/selftests/bpf/progs/stream.c > index 92ba1d72e0ec..8d8e53d37266 100644 > --- a/tools/testing/selftests/bpf/progs/stream.c > +++ b/tools/testing/selftests/bpf/progs/stream.c > @@ -64,6 +64,7 @@ SEC("syscall") > __arch_x86_64 > __arch_arm64 > __arch_s390x > +__arch_riscv64 > __success __retval(0) > __stderr("ERROR: Timeout detected for may_goto instruction") > __stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}") > diff --git a/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c b/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c > index 8d7ff38e4c06..83707faea049 100644 > --- a/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c > +++ b/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c > @@ -660,6 +660,7 @@ __naked void may_goto_interaction_x86_64(void) > > SEC("raw_tp") > __arch_arm64 > +__arch_riscv64 > __log_level(4) __msg("stack depth 24") > /* may_goto counter at -24 */ > __xlated("0: *(u64 *)(r10 -24) =") > @@ -679,7 +680,7 @@ __xlated("10: *(u64 *)(r10 -24) = r12") > __xlated("11: *(u64 *)(r10 -8) = r1") > __xlated("12: exit") > __success > -__naked void may_goto_interaction_arm64(void) > +__naked void may_goto_interaction(void) > { > asm volatile ( > "r1 = 1;" > diff --git a/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c b/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c > index 98d59108d097..97129d2730a0 100644 > --- a/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c > +++ b/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c > @@ -11,6 +11,7 @@ __description("may_goto 0") > __arch_x86_64 > __arch_s390x > __arch_arm64 > +__arch_riscv64 > __xlated("0: r0 = 1") > __xlated("1: exit") > __success > @@ -31,6 +32,7 @@ __description("batch 2 of may_goto 0") > __arch_x86_64 > __arch_s390x > __arch_arm64 > +__arch_riscv64 > __xlated("0: r0 = 1") > __xlated("1: exit") > __success > @@ -53,6 +55,7 @@ __description("may_goto batch with offsets 2/1/0") > __arch_x86_64 > __arch_s390x > __arch_arm64 > +__arch_riscv64 > __xlated("0: r0 = 1") > __xlated("1: exit") > __success > @@ -79,6 +82,7 @@ __description("may_goto batch with offsets 2/0") > __arch_x86_64 > __arch_s390x > __arch_arm64 > +__arch_riscv64 > __xlated("0: *(u64 *)(r10 -16) = 65535") > __xlated("1: *(u64 *)(r10 -8) = 0") > __xlated("2: r12 = *(u64 *)(r10 -16)") > Reviewed-by: Pu Lehui