Messages in this thread | | | Date | Tue, 21 Apr 2020 11:20:27 +0200 | From | Thomas Gleixner <> | Subject | [patch V2 00/16] x86/tlb: Unexport per-CPU tlbstate |
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The per-CPU tlbstate contains sensitive information which should be really only accessible in core code. It is exported to modules because some inline functions which are required by KVM need access to it.
The first version can be found here:
https://lore.kernel.org/r/20200419203137.214111265@linutronix.de
Changes vs. V1:
- Reduced the number of exports by uninlining __flush_tlb_all() (Christoph)
- Addressed fallout reported by 0-day
- Picked up acks/reviewed tags
I left the LKDTM part alone for now and decided to keep the __flush_tlb_all() export for SVM as moving that errata handling to builtin code would required two exports in turn.
The series is also available from git:
git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel x86/tlb
Thanks,
tglx
8<----------------- arch/x86/events/core.c | 11 arch/x86/include/asm/mmu_context.h | 88 ------- arch/x86/include/asm/paravirt.h | 12 - arch/x86/include/asm/pgtable_32.h | 2 arch/x86/include/asm/tlbflush.h | 441 +++---------------------------------- arch/x86/kernel/alternative.c | 55 ++++ arch/x86/kernel/cpu/common.c | 25 ++ arch/x86/kernel/cpu/mtrr/generic.c | 4 arch/x86/kernel/paravirt.c | 21 - arch/x86/kernel/process.c | 11 arch/x86/mm/init.c | 14 + arch/x86/mm/init_64.c | 2 arch/x86/mm/ioremap.c | 2 arch/x86/mm/kmmio.c | 2 arch/x86/mm/mem_encrypt.c | 2 arch/x86/mm/pat/set_memory.c | 2 arch/x86/mm/pgtable.c | 8 arch/x86/mm/pgtable_32.c | 2 arch/x86/mm/tlb.c | 384 +++++++++++++++++++++++++++++++- arch/x86/platform/uv/tlb_uv.c | 4 drivers/xen/privcmd.c | 1 21 files changed, 556 insertions(+), 537 deletions(-)
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