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Fri, 17 Sep 2021 15:31:12 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 788DC11C04A; Fri, 17 Sep 2021 15:31:07 +0000 (GMT) Received: from hbathini-workstation.ibm.com (unknown [9.43.59.213]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 17 Sep 2021 15:31:07 +0000 (GMT) From: Hari Bathini To: naveen.n.rao@linux.ibm.com, mpe@ellerman.id.au, ast@kernel.org, daniel@iogearbox.net Subject: [PATCH v2 0/8] bpf powerpc: Add BPF_PROBE_MEM support in powerpc JIT compiler Date: Fri, 17 Sep 2021 21:00:39 +0530 Message-Id: <20210917153047.177141-1-hbathini@linux.ibm.com> X-Mailer: git-send-email 2.31.1 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: NiwdhFSYJvedcjoihbSDQzv5XnVuCFni X-Proofpoint-ORIG-GUID: LWn4aa2SqR6BQP7g4gyz-k1qnP4GEIsV X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.391,FMLib:17.0.607.475 definitions=2021-09-17_06,2021-09-17_02,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 priorityscore=1501 suspectscore=0 adultscore=0 bulkscore=0 mlxscore=0 impostorscore=0 mlxlogscore=655 malwarescore=0 lowpriorityscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109030001 definitions=main-2109170096 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: songliubraving@fb.com, netdev@vger.kernel.org, john.fastabend@gmail.com, andrii@kernel.org, kpsingh@kernel.org, paulus@samba.org, yhs@fb.com, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kafai@fb.com, Hari Bathini Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Patch #1 & #2 are simple cleanup patches. Patch #3 refactors JIT compiler code with the aim to simplify adding BPF_PROBE_MEM support. Patch #4 introduces PPC_RAW_BRANCH() macro instead of open coding branch instruction. Patch #5 & #7 add BPF_PROBE_MEM support for PPC64 & PPC32 JIT compilers respectively. Patch #6 & #8 add explicit addr > TASK_SIZE_MAX check to handle bad userspace pointers for PPC64 & PPC32 cases respectively. Link to v1 posted by Ravi: https://lore.kernel.org/all/20210706073211.349889-1-ravi.bangoria@linux.ibm.com/ ("[PATCH 0/4] bpf powerpc: Add BPF_PROBE_MEM support for 64bit JIT") Hari Bathini (4): bpf powerpc: refactor JIT compiler code powerpc/ppc-opcode: introduce PPC_RAW_BRANCH() macro bpf ppc32: Add BPF_PROBE_MEM support for JIT bpf ppc32: Add addr > TASK_SIZE_MAX explicit check Ravi Bangoria (4): bpf powerpc: Remove unused SEEN_STACK bpf powerpc: Remove extra_pass from bpf_jit_build_body() bpf ppc64: Add BPF_PROBE_MEM support for JIT bpf ppc64: Add addr > TASK_SIZE_MAX explicit check arch/powerpc/include/asm/ppc-opcode.h | 2 + arch/powerpc/net/bpf_jit.h | 19 ++-- arch/powerpc/net/bpf_jit_comp.c | 75 ++++++++++++++-- arch/powerpc/net/bpf_jit_comp32.c | 123 +++++++++++++++++++++----- arch/powerpc/net/bpf_jit_comp64.c | 114 ++++++++++++++++-------- 5 files changed, 260 insertions(+), 73 deletions(-)