Messages in this thread | | | Date | Tue, 23 Oct 2018 14:29:11 +0200 | From | Ingo Molnar <> | Subject | [GIT PULL] x86/pti changes for v4.20 |
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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(-)
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