Changes from V5 [5]: * Unified name-space for the new FS/GS helpers * Port patch #7 to latest -tip (resolve conflict with e78e5a91456f: 'x86/vdso: Fix lsl operand order') * Minor updates on comments and descriptions
Changes from V4 [4]: * Change patch ordering; putting the fix first before introducing the helper functions * Cleanup further for vDSO CPU initialization codes Changes from V3 [3]: * Unify CPU number initialization Changes from V2 [2]: * Bisect the CPU number initialization patch * Drop patches for introducing i386 CPU_NUMBER and switching write_rdtscp_aux() to use wrmsr_safe() Changes from V1 [1]: * Rename the x86-64 CPU_NUMBER segment from PER_CPU * Add i386 CPU_NUMBER equivalent to x86-64 at GDT entry 23 * Add additional helper function to store CPU number * Switch write_rdtscp_aux() to use wrmsr_safe() [1] V1: https://lore.kernel.org/patchwork/cover/913139/ [2] V2: https://lore.kernel.org/patchwork/cover/913644/ [3] V3: https://lore.kernel.org/patchwork/cover/949775/ [4] V4: https://lore.kernel.org/patchwork/cover/951712/ [5] V5: https://lore.kernel.org/patchwork/cover/956526/ Andy Lutomirski (1): x86/arch_prctl/64: Make ptrace read FS/GS base accurately Chang S. Bae (7): x86/fsgsbase/64: Introduce FS/GS base helper functions x86/fsgsbase/64: Make ptrace use correct FS/GS base helpers x86/fsgsbase/64: Use FS/GS base helpers in core dump x86/fsgsbase/64: Factor out load FS/GS segments from __switch_to() x86/segments/64: Rename PER_CPU segment to CPU_NUMBER x86/vdso: Introduce helper functions for CPU and node number x86/vdso: Move out the CPU initialization arch/x86/entry/vdso/vgetcpu.c | 9 +- arch/x86/entry/vdso/vma.c | 38 +-------- arch/x86/include/asm/elf.h | 6 +- arch/x86/include/asm/fsgsbase.h | 47 +++++++++++ arch/x86/include/asm/segment.h | 46 +++++++++- arch/x86/include/asm/vgtod.h | 26 ------ arch/x86/kernel/cpu/common.c | 24 ++++++ arch/x86/kernel/process_64.c | 183 +++++++++++++++++++++++++++++++--------- arch/x86/kernel/ptrace.c | 28 ++---- 9 files changed, 270 insertions(+), 137 deletions(-) create mode 100644 arch/x86/include/asm/fsgsbase.h -- 2.7.4
