From: Yu-cheng Yu <yu-cheng.yu@intel.com> To: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Andy Lutomirski <luto@amacapital.net>, Balbir Singh <bsingharora@gmail.com>, Borislav Petkov <bp@alien8.de>, Cyrill Gorcunov <gorcunov@gmail.com>, Dave Hansen <dave.hansen@linux.intel.com>, Eugene Syromiatnikov <esyr@redhat.com>, Florian Weimer <fweimer@redhat.com>, "H.J. Lu" <hjl.tools@gmail.com>, Jann Horn <jannh@google.com>, Jonathan Corbet <corbet@lwn.net>, Kees Cook <keescook@chromium.org>, Mike Kravetz <mike.kravetz@oracle.com>, Nadav Amit <nadav.amit@gmail.com> Cc: Yu-cheng Yu <yu-cheng.yu@intel.com> Subject: [PATCH v8 00/27] Control-flow Enforcement: Shadow Stack Date: Tue, 13 Aug 2019 13:51:58 -0700 Message-ID: <20190813205225.12032-1-yu-cheng.yu@intel.com> (raw) Intel has published Control-flow Enforcement (CET) in the Architecture Instruction Set Extensions Programming Reference: https://software.intel.com/en-us/download/intel-architecture-instruction-set- extensions-programming-reference The previous version (v7) of CET Shadow Stack patches is here: https://lkml.org/lkml/2019/6/6/1003 Summary of changes from v7: Rewrite ELF GNU property parsing (Patch #22). Look at PT_GNU_PROPERTY now. Rebase to v5.3-rc4. Small fixes in response to comments. Yu-cheng Yu (27): Documentation/x86: Add CET description x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET) x86/fpu/xstate: Change names to separate XSAVES system and user states x86/fpu/xstate: Introduce XSAVES system states x86/fpu/xstate: Introduce CET MSR system states x86/cet: Add control protection exception handler x86/cet/shstk: Add Kconfig option for user-mode shadow stack mm: Introduce VM_SHSTK for shadow stack memory mm/mmap: Prevent Shadow Stack VMA merges x86/mm: Change _PAGE_DIRTY to _PAGE_DIRTY_HW x86/mm: Introduce _PAGE_DIRTY_SW drm/i915/gvt: Update _PAGE_DIRTY to _PAGE_DIRTY_BITS x86/mm: Modify ptep_set_wrprotect and pmdp_set_wrprotect for _PAGE_DIRTY_SW x86/mm: Shadow stack page fault error checking mm: Handle shadow stack page fault mm: Handle THP/HugeTLB shadow stack page fault mm: Update can_follow_write_pte/pmd for shadow stack mm: Introduce do_mmap_locked() x86/cet/shstk: User-mode shadow stack support x86/cet/shstk: Introduce WRUSS instruction x86/cet/shstk: Handle signals for shadow stack binfmt_elf: Extract .note.gnu.property from an ELF file x86/cet/shstk: ELF header parsing of Shadow Stack x86/cet/shstk: Handle thread shadow stack mm/mmap: Add Shadow stack pages to memory accounting x86/cet/shstk: Add arch_prctl functions for Shadow Stack x86/cet/shstk: Add Shadow Stack instructions to opcode map .../admin-guide/kernel-parameters.txt | 6 + Documentation/x86/index.rst | 1 + Documentation/x86/intel_cet.rst | 269 ++++++++++++++ arch/x86/Kconfig | 27 ++ arch/x86/Makefile | 7 + arch/x86/entry/entry_64.S | 2 +- arch/x86/ia32/ia32_signal.c | 8 + arch/x86/include/asm/cet.h | 48 +++ arch/x86/include/asm/cpufeatures.h | 2 + arch/x86/include/asm/disabled-features.h | 8 +- arch/x86/include/asm/elf.h | 13 + arch/x86/include/asm/fpu/internal.h | 27 +- arch/x86/include/asm/fpu/signal.h | 2 + arch/x86/include/asm/fpu/types.h | 22 ++ arch/x86/include/asm/fpu/xstate.h | 26 +- arch/x86/include/asm/mmu_context.h | 3 + arch/x86/include/asm/msr-index.h | 18 + arch/x86/include/asm/pgtable.h | 191 ++++++++-- arch/x86/include/asm/pgtable_types.h | 38 +- arch/x86/include/asm/processor.h | 5 + arch/x86/include/asm/special_insns.h | 32 ++ arch/x86/include/asm/traps.h | 5 + arch/x86/include/uapi/asm/prctl.h | 5 + arch/x86/include/uapi/asm/processor-flags.h | 2 + arch/x86/include/uapi/asm/sigcontext.h | 15 + arch/x86/kernel/Makefile | 2 + arch/x86/kernel/cet.c | 327 ++++++++++++++++++ arch/x86/kernel/cet_prctl.c | 85 +++++ arch/x86/kernel/cpu/common.c | 25 ++ arch/x86/kernel/cpu/cpuid-deps.c | 2 + arch/x86/kernel/fpu/core.c | 26 +- arch/x86/kernel/fpu/init.c | 10 - arch/x86/kernel/fpu/signal.c | 81 ++++- arch/x86/kernel/fpu/xstate.c | 169 +++++---- arch/x86/kernel/idt.c | 4 + arch/x86/kernel/process.c | 8 +- arch/x86/kernel/process_64.c | 41 +++ arch/x86/kernel/relocate_kernel_64.S | 2 +- arch/x86/kernel/signal.c | 10 +- arch/x86/kernel/signal_compat.c | 2 +- arch/x86/kernel/traps.c | 57 +++ arch/x86/kvm/vmx/vmx.c | 2 +- arch/x86/lib/x86-opcode-map.txt | 26 +- arch/x86/mm/fault.c | 18 + arch/x86/mm/pgtable.c | 41 +++ drivers/gpu/drm/i915/gvt/gtt.c | 2 +- fs/Kconfig.binfmt | 3 + fs/Makefile | 1 + fs/binfmt_elf.c | 20 ++ fs/gnu_property.c | 178 ++++++++++ fs/proc/task_mmu.c | 3 + include/asm-generic/pgtable.h | 33 ++ include/linux/elf.h | 11 + include/linux/mm.h | 26 ++ include/uapi/asm-generic/siginfo.h | 3 +- include/uapi/linux/elf.h | 14 + mm/gup.c | 8 +- mm/huge_memory.c | 12 +- mm/memory.c | 7 +- mm/mmap.c | 11 + .../arch/x86/include/asm/disabled-features.h | 8 +- tools/objtool/arch/x86/lib/x86-opcode-map.txt | 26 +- 62 files changed, 1920 insertions(+), 166 deletions(-) create mode 100644 Documentation/x86/intel_cet.rst create mode 100644 arch/x86/include/asm/cet.h create mode 100644 arch/x86/kernel/cet.c create mode 100644 arch/x86/kernel/cet_prctl.c create mode 100644 fs/gnu_property.c -- 2.17.1
next reply index Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-13 20:51 Yu-cheng Yu [this message] 2019-08-13 20:51 ` [PATCH v8 01/27] Documentation/x86: Add CET description Yu-cheng Yu 2019-08-14 8:07 ` Florian Weimer 2019-08-14 15:57 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 02/27] x86/cpufeatures: Add CET CPU feature flags for Control-flow Enforcement Technology (CET) Yu-cheng Yu 2019-08-21 10:20 ` Borislav Petkov 2019-08-21 14:46 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 03/27] x86/fpu/xstate: Change names to separate XSAVES system and user states Yu-cheng Yu 2019-08-21 14:45 ` Borislav Petkov 2019-08-13 20:52 ` [PATCH v8 04/27] x86/fpu/xstate: Introduce XSAVES system states Yu-cheng Yu 2019-08-16 19:56 ` Thomas Gleixner 2019-08-16 19:59 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 05/27] x86/fpu/xstate: Introduce CET MSR " Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 06/27] x86/cet: Add control protection exception handler Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 07/27] x86/cet/shstk: Add Kconfig option for user-mode shadow stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 08/27] mm: Introduce VM_SHSTK for shadow stack memory Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 09/27] mm/mmap: Prevent Shadow Stack VMA merges Yu-cheng Yu 2019-08-13 22:34 ` Dave Hansen 2019-08-14 16:20 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 10/27] x86/mm: Change _PAGE_DIRTY to _PAGE_DIRTY_HW Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 11/27] x86/mm: Introduce _PAGE_DIRTY_SW Yu-cheng Yu 2019-08-13 23:02 ` Dave Hansen 2019-08-13 23:49 ` Andy Lutomirski 2019-08-14 16:42 ` Yu-cheng Yu 2019-08-14 16:58 ` Dave Hansen 2019-08-23 14:02 ` Peter Zijlstra 2019-08-27 22:37 ` Yu-cheng Yu 2019-08-28 7:03 ` Peter Zijlstra 2019-08-28 14:57 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 12/27] drm/i915/gvt: Update _PAGE_DIRTY to _PAGE_DIRTY_BITS Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 13/27] x86/mm: Modify ptep_set_wrprotect and pmdp_set_wrprotect for _PAGE_DIRTY_SW Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 14/27] x86/mm: Shadow stack page fault error checking Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 15/27] mm: Handle shadow stack page fault Yu-cheng Yu 2019-08-13 22:55 ` Andy Lutomirski 2019-08-14 16:27 ` Yu-cheng Yu 2019-08-14 16:48 ` Dave Hansen 2019-08-14 17:00 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 16/27] mm: Handle THP/HugeTLB " Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 17/27] mm: Update can_follow_write_pte/pmd for shadow stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 18/27] mm: Introduce do_mmap_locked() Yu-cheng Yu 2019-08-20 1:02 ` Sean Christopherson 2019-08-20 16:08 ` Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 19/27] x86/cet/shstk: User-mode shadow stack support Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 20/27] x86/cet/shstk: Introduce WRUSS instruction Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 21/27] x86/cet/shstk: Handle signals for shadow stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 22/27] binfmt_elf: Extract .note.gnu.property from an ELF file Yu-cheng Yu 2019-08-16 13:55 ` Dave Martin 2019-08-20 10:02 ` Dave Martin 2019-08-13 20:52 ` [PATCH v8 23/27] x86/cet/shstk: ELF header parsing of Shadow Stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 24/27] x86/cet/shstk: Handle thread shadow stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 25/27] mm/mmap: Add Shadow stack pages to memory accounting Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 26/27] x86/cet/shstk: Add arch_prctl functions for Shadow Stack Yu-cheng Yu 2019-08-13 20:52 ` [PATCH v8 27/27] x86/cet/shstk: Add Shadow Stack instructions to opcode map Yu-cheng Yu 2019-11-08 13:27 ` Adrian Hunter 2019-11-08 18:09 ` Yu-cheng Yu
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