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[46.139.12.213]) by smtp.gmail.com with ESMTPSA id i13-v6sm1373484wrn.62.2018.10.23.05.29.13 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 23 Oct 2018 05:29:14 -0700 (PDT) Date: Tue, 23 Oct 2018 14:29:11 +0200 From: Ingo Molnar To: Linus Torvalds Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , Borislav Petkov , Andy Lutomirski , Peter Zijlstra , Greg Kroah-Hartman , Andrew Morton Subject: [GIT PULL] x86/pti changes for v4.20 Message-ID: <20181023122911.GA48335@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus, Please pull the latest x86-pti-for-linus git tree from: git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-pti-for-linus # HEAD: bb4b3b7762735cdaba5a40fd94c9303d9ffa147a x86/speculation: Propagate information about RSB filling mitigation to sysfs The main changes: - Make the IBPB barrier more strict and add STIBP support (Jiri Kosina) - Micro-optimize and clean up the entry code (Andy Lutomirski) - ... plus misc other fixes. Thanks, Ingo out-of-topic modifications in x86-pti-for-linus: -------------------------------------------------- include/linux/ptrace.h # dbfe2953f63c: x86/speculation: Apply IBPB kernel/cpu.c # 53c613fe6349: x86/speculation: Enable cros kernel/ptrace.c # dbfe2953f63c: x86/speculation: Apply IBPB ------------------> Andy Lutomirski (3): x86/entry/64: Document idtentry x86/entry/64: Use the TSS sp2 slot for SYSCALL/SYSRET scratch space x86/pti/64: Remove the SYSCALL64 entry trampoline Jiri Kosina (3): x86/speculation: Apply IBPB more strictly to avoid cross-process data leak x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation x86/speculation: Propagate information about RSB filling mitigation to sysfs Zhenzhong Duan (1): x86/speculation: Add RETPOLINE_AMD support to the inline asm CALL_NOSPEC variant zhong jiang (1): x86/CPU: Fix unused variable warning when !CONFIG_IA32_EMULATION arch/x86/entry/entry_64.S | 117 +++++++++++++--------------------- arch/x86/include/asm/cpu_entry_area.h | 2 - arch/x86/include/asm/nospec-branch.h | 17 +++-- arch/x86/include/asm/processor.h | 6 ++ arch/x86/include/asm/sections.h | 1 - arch/x86/kernel/asm-offsets.c | 5 +- arch/x86/kernel/cpu/bugs.c | 58 +++++++++++++++-- arch/x86/kernel/cpu/common.c | 16 +---- arch/x86/kernel/kprobes/core.c | 10 +-- arch/x86/kernel/process_64.c | 2 - arch/x86/kernel/traps.c | 4 ++ arch/x86/kernel/vmlinux.lds.S | 10 --- arch/x86/mm/cpu_entry_area.c | 36 ----------- arch/x86/mm/pti.c | 33 +++++++++- arch/x86/mm/tlb.c | 31 +++++---- arch/x86/xen/xen-asm_64.S | 8 ++- include/linux/ptrace.h | 21 +++++- kernel/cpu.c | 11 +++- kernel/ptrace.c | 10 +++ 19 files changed, 222 insertions(+), 176 deletions(-)