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GET /api/patches/2218524/?format=api
{ "id": 2218524, "url": "http://patchwork.ozlabs.org/api/patches/2218524/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260401152133.42544-2-adubey@linux.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260401152133.42544-2-adubey@linux.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260401152133.42544-2-adubey@linux.ibm.com/", "date": "2026-04-01T15:21:30", "name": "[v3,1/4] powerpc/bpf: Add support for instruction array", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "043c763f8ae26a24ad85c3006f2fbcf34c3af014", "submitter": { "id": 88541, "url": "http://patchwork.ozlabs.org/api/people/88541/?format=api", "name": "adubey", "email": "adubey@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260401152133.42544-2-adubey@linux.ibm.com/mbox/", "series": [ { "id": 498317, "url": "http://patchwork.ozlabs.org/api/series/498317/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=498317", "date": "2026-04-01T15:21:30", "name": "powerpc/bpf: Add support for instruction array and indirect jump", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/498317/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2218524/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2218524/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19142-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=XzQMbPXZ;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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lists.ozlabs.org;\n dmarc=pass (p=none dis=none) header.from=linux.ibm.com;\n dkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=XzQMbPXZ; dkim-atps=neutral;\n spf=pass (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n envelope-from=adubey@linux.ibm.com;\n receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n\t:content-transfer-encoding:date:from:in-reply-to:message-id\n\t:mime-version:references:subject:to; s=pp1; bh=VJjTbq4YncHhXwFfY\n\tbGc3aDQVETLzdOAb2F35qDqNEI=; b=XzQMbPXZyokTcC8I/UgfPom/Dpv0CnFxq\n\t6A0yiDSgGP22bU0alCgCrir22Rwt0J3mTIcjnJvk9TqY0Fbw3b2oiEMOkg73D65A\n\txUZ7VrEt6/Eoc8mKIBJQ7Uhc2+sDdqRfr6NP8bDL1yBKQgij3bDl3O6nDzVeYHAQ\n\tnrmg6AI5XIxARArjvBtG/JGKwdYpQC5P3PV0jQJI2hbeVX09VcOphktxe2bWaLnS\n\toGQiO9TR3aFd3m5jvuqpQz1ctKIF88nKh26mF/lekDwQRyn/4V1zCRqfpSKlrzy9\n\tQWfUXVyBq4HtsAC2ArVxm+3lKIanV5AfyUznW1tyrK03Xs+gXq8yQ==", "From": "adubey@linux.ibm.com", "To": "linuxppc-dev@lists.ozlabs.org", "Cc": "hbathini@linux.ibm.com, bpf@vger.kernel.org, maddy@linux.ibm.com,\n ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net,\n shuah@kernel.org, linux-kselftest@vger.kernel.org,\n Abhishek Dubey <adubey@linux.ibm.com>", "Subject": "[PATCH v3 1/4] powerpc/bpf: Add support for instruction array", "Date": "Wed, 1 Apr 2026 11:21:30 -0400", "Message-ID": "<20260401152133.42544-2-adubey@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20260401152133.42544-1-adubey@linux.ibm.com>", "References": "<20260401152133.42544-1-adubey@linux.ibm.com>", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Archive": "<https://lore.kernel.org/linuxppc-dev/>,\n <https://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Subscribe": "<mailto:linuxppc-dev+subscribe@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-digest@lists.ozlabs.org>,\n <mailto:linuxppc-dev+subscribe-nomail@lists.ozlabs.org>", "List-Unsubscribe": "<mailto:linuxppc-dev+unsubscribe@lists.ozlabs.org>", "Precedence": "list", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Proofpoint-GUID": "02IQjd_29Lu66KduikJlQsx7Ysk3_nts", "X-Authority-Analysis": "v=2.4 cv=KslAGGWN c=1 sm=1 tr=0 ts=69ccffb5 cx=c_pps\n a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=6tkAVXMqj22fOBSrVA8A:9", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwNDAxMDEwMyBTYWx0ZWRfX/woH+zO7pPzu\n Awe+/Peb1bmdH4E0a5XD1EN2qXUVTALCwdh0znvc6+uoiLj7VrVrayyz3Czyg8B/QPylnyjZZ75\n h+IJUPGZu37M2mkQS5BX4To3FKNwwgGvgvZ4/CtM/aOWjevO4+ZBQvxp1VoD0cKTnV6hQchxyIs\n mdn3t4qJqNyuLruYdKKmGawepJlXUuU/428PzTpaQ+AqKZsV9K+2sGcRk8iQlR1PpXWl5OQOD6r\n wJ6C69+HZsxTmUnMLpmKjOEgpOhJYy9Bnzb/xYrgVj9pZgav6qWR0AKQfIuAC4zwihN2aC7nRn7\n 8bxyKzKY3D5Wqi5wIVZpqZCOR93ioA6A+bBkCGTAAj7hwsOpFTSUhnXFFFj66nJKuVADXX265wh\n RN8sPFAchcvUr6ZPj4DfMEMSVgTL1pyEBHNT8RIYAFK4FGdFLo/PrtF/BHTxhFODG/WiXfNx1bh\n RQ+/StVfeI0uht5qVJg==", "X-Proofpoint-ORIG-GUID": "02IQjd_29Lu66KduikJlQsx7Ysk3_nts", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-01_03,2026-04-01_02,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n malwarescore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0\n phishscore=0 adultscore=0 bulkscore=0 impostorscore=0 clxscore=1015\n spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound\n adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001\n definitions=main-2604010103", "X-Spam-Status": "No, score=1.7 required=3.0 tests=DATE_IN_FUTURE_03_06,\n\tDKIM_SIGNED,DKIM_VALID,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,\n\tRCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1 OzLabs 8", "X-Spam-Level": "*", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "From: Abhishek Dubey <adubey@linux.ibm.com>\n\nOn loading the BPF program, the verifier might adjust/omit some\ninstructions. The adjusted instruction offset is accounted in the\nmap containing original instruction -> xlated mapping. This patch\nadd ppc64 JIT support to additionally build the xlated->jitted\nmapping for every instruction present in instruction array. This\nchange is needed to enable support for indirect jumps, added in a\nsubsequent patch.\n\nInvoke bpf_prog_update_insn_ptrs() with offset pair of xlated_offset\nand jited_offset. The offset mapping is already available, which is\nbeing used for bpf_prog_fill_jited_linfo() and can be directly used\nfor bpf_prog_update_insn_ptrs() as well.\n\nAdditional details present at:\n\ncommit b4ce5923e780 (\"bpf, x86: add new map type: instructions array\")\n\nSigned-off-by: Abhishek Dubey <adubey@linux.ibm.com>\nAcked-by: Hari Bathini <hbathini@linux.ibm.com>\n---\n arch/powerpc/net/bpf_jit_comp.c | 7 +++++++\n 1 file changed, 7 insertions(+)", "diff": "diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c\nindex b2fdf8ff9c60..50103b3794fb 100644\n--- a/arch/powerpc/net/bpf_jit_comp.c\n+++ b/arch/powerpc/net/bpf_jit_comp.c\n@@ -373,6 +373,13 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)\n \t\t\tgoto out_addrs;\n \t\t}\n \t\tbpf_prog_fill_jited_linfo(fp, addrs);\n+\t\t/*\n+\t\t * On ABI V1, executable code starts after the function\n+\t\t * descriptor, so adjust base accordingly.\n+\t\t */\n+\t\tbpf_prog_update_insn_ptrs(fp, addrs,\n+\t\t\t\t(void *)fimage + FUNCTION_DESCR_SIZE);\n+\n out_addrs:\n \t\tif (!image && priv_stack_ptr) {\n \t\t\tfp->aux->priv_stack_ptr = NULL;\n", "prefixes": [ "v3", "1/4" ] }