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[159.196.117.139]) by smtp.gmail.com with ESMTPSA id a18sm14136574pfa.18.2021.03.29.21.51.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Mar 2021 21:51:45 -0700 (PDT) From: Jordan Niethe To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v10 00/10] powerpc: Further Strict RWX support Date: Tue, 30 Mar 2021 15:51:22 +1100 Message-Id: <20210330045132.722243-1-jniethe5@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: ajd@linux.ibm.com, cmr@codefail.de, npiggin@gmail.com, Jordan Niethe , naveen.n.rao@linux.ibm.com, dja@axtens.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Another revision to this series adding more Strict RWX support on powerpc, in particular Strict Module RWX. This revision adds consideration for bpf. The changes in v10 for each patch: Christophe Leroy (2): powerpc/mm: implement set_memory_attr() powerpc/32: use set_memory_attr() Jordan Niethe (3): powerpc/lib/code-patching: Set up Strict RWX patching earlier powerpc: Always define MODULES_{VADDR,END} v10: - New to series powerpc/bpf: Write protect JIT code v10: - New to series Russell Currey (5): powerpc/mm: Implement set_memory() routines v10: - WARN if trying to change the hash linear map powerpc/kprobes: Mark newly allocated probes as ROX v10: - Use __vmalloc_node_range() powerpc/mm/ptdump: debugfs handler for W+X checks at runtime v10: check_wx_pages now affects kernel_page_tables rather then triggers its own action. powerpc: Set ARCH_HAS_STRICT_MODULE_RWX v10: - Predicate on !PPC_BOOK3S_604 - Make module_alloc() use PAGE_KERNEL protection powerpc/configs: Enable STRICT_MODULE_RWX in skiroot_defconfig arch/powerpc/Kconfig | 2 + arch/powerpc/Kconfig.debug | 6 +- arch/powerpc/configs/skiroot_defconfig | 1 + arch/powerpc/include/asm/pgtable.h | 5 + arch/powerpc/include/asm/set_memory.h | 34 +++++++ arch/powerpc/kernel/kprobes.c | 14 +++ arch/powerpc/kernel/module.c | 14 +-- arch/powerpc/lib/code-patching.c | 12 +-- arch/powerpc/mm/Makefile | 2 +- arch/powerpc/mm/pageattr.c | 121 +++++++++++++++++++++++++ arch/powerpc/mm/pgtable_32.c | 60 ++---------- arch/powerpc/mm/ptdump/ptdump.c | 34 ++++++- arch/powerpc/net/bpf_jit_comp.c | 5 +- arch/powerpc/net/bpf_jit_comp64.c | 4 + 14 files changed, 245 insertions(+), 69 deletions(-) create mode 100644 arch/powerpc/include/asm/set_memory.h create mode 100644 arch/powerpc/mm/pageattr.c -- 2.25.1