From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-174.mta0.migadu.com (out-174.mta0.migadu.com [91.218.175.174]) (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 E0A51369999 for ; Wed, 28 Jan 2026 15:01:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769612515; cv=none; b=N5EFSUMw0kvgcQocqZkSKcjrY9ZtrpSK+rzyADoiRufoXOMdrCimnV52IXiDAH55Bt+xG8ViNQH1ONS8X+jyrSTCzUPNqGFLZMsAbBQ0ZgLb7TEmCJ4WiAGLuIkfHbKspOxL/x4Exbm0izwoKu//QLbr+Q3Qf2DgrTVevOmKq8E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769612515; c=relaxed/simple; bh=pztt026up2P4xqtjxc1Kc5KO09stPQ8UGQxMeSCjTsA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=lEUjpTlxUJB91yWcdQBunwJML89dVZmVOoTjI/a8LWs7YmfaUIhzKTRqjWxY+rI4ChBKLOoK5lUGKr8OoG/VuU+kSgM+tEwmzZRsgvBTki76j/y9qYR4xBCmlOL/JVS2tVwcerwcwoS/XQOKJJC6DZjvsUsqrOPa2Ga2FzS+Fjw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=ZiwyxMFD; arc=none smtp.client-ip=91.218.175.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="ZiwyxMFD" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1769612495; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=k4l9+/zjVdAeQ0ROWCJXkoihmFOfDxlfbczHQ1tq6Xc=; b=ZiwyxMFDDtqkv5yoZMLezAk7OywXx0Ln7OXs3BjuRsOkLUQ2xuKxLh9NimUaUb+KIKfwdY Pw5ly/3E/LN8ITSNn2U796762D7cLlRzNgZdhLcfDLCidGhR9QBV1sD8lyA9I6YBmByGEM Wtnr8gp/9Z9ipABzFpVyz7TS9Ns0nh0= From: Leon Hwang To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Puranjay Mohan , Xu Kuohai , Catalin Marinas , Will Deacon , Shuah Khan , Menglong Dong , Leon Hwang , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kernel-patches-bot@fb.com Subject: [PATCH bpf-next v2 0/3] bpf, arm64: Add fsession support Date: Wed, 28 Jan 2026 23:01:09 +0800 Message-ID: <20260128150112.8873-1-leon.hwang@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Similar to commit 98770bd4e6df ("bpf,x86: add fsession support for x86_64"), add fsession support on arm64. Patch #1 adds bpf_arch_supports_fsession() to prevent fsession loading on architectures that do not implement fsession support. Patch #2 implements fsession support in the arm64 BPF JIT trampoline. Patch #3 enables the relevant selftests on arm64, including get_func_ip, and get_func_args. All enabled tests pass on arm64: cd tools/testing/selftests/bpf ./test_progs -t fsession #135/1 fsession_test/fsession_test:OK #135/2 fsession_test/fsession_reattach:OK #135/3 fsession_test/fsession_cookie:OK #135 fsession_test:OK Summary: 1/3 PASSED, 0 SKIPPED, 0 FAILED ./test_progs -t get_func #138 get_func_args_test:OK #139 get_func_ip_test:OK Summary: 2/0 PASSED, 0 SKIPPED, 0 FAILED Changes: v1 -> v2: * Add bpf_arch_supports_fsession(). Leon Hwang (3): bpf: Add bpf_arch_supports_fsession() bpf, arm64: Add fsession support bpf/selftests: Enable get_func_args and get_func_ip tests on arm64 arch/arm64/net/bpf_jit_comp.c | 71 ++++++++++++++++--- arch/x86/net/bpf_jit_comp.c | 5 ++ include/linux/bpf.h | 7 +- include/linux/filter.h | 1 + kernel/bpf/core.c | 5 ++ kernel/bpf/verifier.c | 3 + .../selftests/bpf/prog_tests/fsession_test.c | 32 ++++++--- .../selftests/bpf/progs/get_func_args_test.c | 2 +- .../selftests/bpf/progs/get_func_ip_test.c | 2 +- 9 files changed, 108 insertions(+), 20 deletions(-) -- 2.52.0