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* [PATCH 00/43] x86 entry-stack and Kaiser series, 2017/11/24 version
@ 2017-11-24  9:14 Ingo Molnar
  2017-11-24  9:14 ` [PATCH 01/43] x86/decoder: Add new TEST instruction pattern Ingo Molnar
                   ` (44 more replies)
  0 siblings, 45 replies; 82+ messages in thread
From: Ingo Molnar @ 2017-11-24  9:14 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dave Hansen, Andy Lutomirski, Thomas Gleixner, H . Peter Anvin,
	Peter Zijlstra, Borislav Petkov, Linus Torvalds

This is a linear series of patches of the latest entry-stack plus Kaiser
bits from Andy Lutomirski (v3 series from today) and Dave Hansen
(kaiser-414-tipwip-20171123 version), on top of latest tip:x86/urgent (12a78d43de76),
plus fixes - for easier review.

The code should be the latest posted by Andy and Dave.

Any bugs caused by mis-merges, mis-backmerges or mis-fixes are mine.

Thanks,

    Ingo

Andy Lutomirski (19):
  x86/entry/64: Allocate and enable the SYSENTER stack
  x86/dumpstack: Add get_stack_info() support for the SYSENTER stack
  x86/gdt: Put per-cpu GDT remaps in ascending order
  x86/fixmap: Generalize the GDT fixmap mechanism
  x86/kasan/64: Teach KASAN about the cpu_entry_area
  x86/entry: Fix assumptions that the HW TSS is at the beginning of cpu_tss
  x86/dumpstack: Handle stack overflow on all stacks
  x86/entry: Move SYSENTER_stack to the beginning of struct tss_struct
  x86/entry: Remap the TSS into the cpu entry area
  x86/entry/64: Separate cpu_current_top_of_stack from TSS.sp0
  x86/espfix/64: Stop assuming that pt_regs is on the entry stack
  x86/entry/64: Use a percpu trampoline stack for IDT entries
  x86/entry/64: Return to userspace from the trampoline stack
  x86/entry/64: Create a percpu SYSCALL entry trampoline
  x86/irq: Remove an old outdated comment about context tracking races
  x86/irq/64: Print the offending IP in the stack overflow warning
  x86/entry/64: Move the IST stacks into cpu_entry_area
  x86/entry/64: Remove the SYSENTER stack canary
  x86/entry: Clean up SYSENTER_stack code

Dave Hansen (22):
  x86/mm/kaiser: Disable global pages by default with KAISER
  x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching
  x86/mm/kaiser: Introduce user-mapped per-cpu areas
  x86/mm/kaiser: Mark per-cpu data structures required for entry/exit
  x86/mm/kaiser: Unmap kernel from userspace page tables (core patch)
  x86/mm/kaiser: Allow NX poison to be set in p4d/pgd
  x86/mm/kaiser: Make sure static PGDs are 8k in size
  x86/mm/kaiser: Map CPU entry area
  x86/mm/kaiser: Map dynamically-allocated LDTs
  x86/mm/kaiser: Map espfix structures
  x86/mm/kaiser: Map entry stack variable
  x86/mm: Move CR3 construction functions
  x86/mm: Remove hard-coded ASID limit checks
  x86/mm: Put mmu-to-h/w ASID translation in one place
  x86/mm: Allow flushing for future ASID switches
  x86/mm/kaiser: Use PCID feature to make user and kernel switches faster
  x86/mm/kaiser: Disable native VSYSCALL
  x86/mm/kaiser: Add debugfs file to turn KAISER on/off at runtime
  x86/mm/kaiser: Add a function to check for KAISER being enabled
  x86/mm/kaiser: Un-poison PGDs at runtime
  x86/mm/kaiser: Allow KAISER to be enabled/disabled at runtime
  x86/mm/kaiser: Add Kconfig

Hugh Dickins (1):
  x86/mm/kaiser: Map virtually-addressed performance monitoring buffers

Masami Hiramatsu (1):
  x86/decoder: Add new TEST instruction pattern

 Documentation/x86/kaiser.txt                | 162 ++++++++
 arch/x86/Kconfig                            |   8 +
 arch/x86/boot/compressed/pagetable.c        |   6 +
 arch/x86/entry/calling.h                    |  89 ++++
 arch/x86/entry/entry_32.S                   |   6 +-
 arch/x86/entry/entry_64.S                   | 215 ++++++++--
 arch/x86/entry/entry_64_compat.S            |  39 +-
 arch/x86/events/intel/ds.c                  |  49 ++-
 arch/x86/include/asm/cpufeatures.h          |   1 +
 arch/x86/include/asm/desc.h                 |  13 +-
 arch/x86/include/asm/fixmap.h               |  58 ++-
 arch/x86/include/asm/kaiser.h               |  68 +++
 arch/x86/include/asm/mmu_context.h          |  29 +-
 arch/x86/include/asm/pgtable.h              |  19 +-
 arch/x86/include/asm/pgtable_64.h           | 146 +++++++
 arch/x86/include/asm/pgtable_types.h        |  25 +-
 arch/x86/include/asm/processor.h            |  49 ++-
 arch/x86/include/asm/stacktrace.h           |   3 +
 arch/x86/include/asm/switch_to.h            |   2 +-
 arch/x86/include/asm/thread_info.h          |   2 +-
 arch/x86/include/asm/tlbflush.h             | 208 ++++++++--
 arch/x86/include/asm/traps.h                |   1 -
 arch/x86/include/uapi/asm/processor-flags.h |   3 +-
 arch/x86/kernel/asm-offsets.c               |   7 +
 arch/x86/kernel/asm-offsets_32.c            |   5 -
 arch/x86/kernel/asm-offsets_64.c            |   1 +
 arch/x86/kernel/cpu/common.c                | 139 +++++--
 arch/x86/kernel/doublefault.c               |  36 +-
 arch/x86/kernel/dumpstack.c                 |  42 +-
 arch/x86/kernel/dumpstack_32.c              |   6 +
 arch/x86/kernel/dumpstack_64.c              |   6 +
 arch/x86/kernel/espfix_64.c                 |  27 +-
 arch/x86/kernel/head_64.S                   |  30 +-
 arch/x86/kernel/irq.c                       |  12 -
 arch/x86/kernel/irq_64.c                    |   4 +-
 arch/x86/kernel/ldt.c                       |  25 +-
 arch/x86/kernel/process.c                   |  15 +-
 arch/x86/kernel/process_64.c                |   3 +-
 arch/x86/kernel/traps.c                     |  27 +-
 arch/x86/kernel/vmlinux.lds.S               |  10 +
 arch/x86/kvm/x86.c                          |   3 +-
 arch/x86/lib/x86-opcode-map.txt             |   2 +-
 arch/x86/mm/Makefile                        |   1 +
 arch/x86/mm/init.c                          |  75 ++--
 arch/x86/mm/kaiser.c                        | 620 ++++++++++++++++++++++++++++
 arch/x86/mm/kasan_init_64.c                 |  13 +-
 arch/x86/mm/pageattr.c                      |  18 +-
 arch/x86/mm/pgtable.c                       |  16 +-
 arch/x86/mm/tlb.c                           | 105 ++++-
 arch/x86/power/cpu.c                        |  16 +-
 arch/x86/xen/mmu_pv.c                       |   2 +-
 include/asm-generic/vmlinux.lds.h           |   7 +
 include/linux/kaiser.h                      |  38 ++
 include/linux/percpu-defs.h                 |  30 ++
 init/main.c                                 |   3 +
 kernel/fork.c                               |   1 +
 security/Kconfig                            |  10 +
 57 files changed, 2259 insertions(+), 297 deletions(-)
 create mode 100644 Documentation/x86/kaiser.txt
 create mode 100644 arch/x86/include/asm/kaiser.h
 create mode 100644 arch/x86/mm/kaiser.c
 create mode 100644 include/linux/kaiser.h

-- 
2.14.1

^ permalink raw reply	[flat|nested] 82+ messages in thread
* [PATCH 00/43] x86 entry-stack and Kaiser series, 2017/11/24, v2 version
@ 2017-11-24 17:23 Ingo Molnar
  2017-11-24 17:23 ` [PATCH 22/43] x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching Ingo Molnar
  0 siblings, 1 reply; 82+ messages in thread
From: Ingo Molnar @ 2017-11-24 17:23 UTC (permalink / raw)
  To: linux-kernel
  Cc: Dave Hansen, Andy Lutomirski, Thomas Gleixner, H . Peter Anvin,
	Peter Zijlstra, Borislav Petkov, Linus Torvalds

This is a repost of the latest entry-stack plus Kaiser bits from Andy Lutomirski
(v3 series from today) and Dave Hansen (kaiser-414-tipwip-20171123 version),
on top of latest tip:x86/urgent (12a78d43de76).

This version is pretty well tested, at least on the usual x86 tree test systems.
It has a couple of merge mistakes fixed, the biggest difference is in patch #22:

  x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching

The other patches are identical or very close to what I posted earlier today.

Any remaining bugs caused by mis-merges, mis-backmerges or mis-fixes are mine.

Thanks,

    Ingo

Andy Lutomirski (19):
  x86/asm/64: Allocate and enable the SYSENTER stack
  x86/dumpstack: Add get_stack_info() support for the SYSENTER stack
  x86/gdt: Put per-cpu GDT remaps in ascending order
  x86/fixmap: Generalize the GDT fixmap mechanism
  x86/kasan/64: Teach KASAN about the cpu_entry_area
  x86/asm: Fix assumptions that the HW TSS is at the beginning of cpu_tss
  x86/dumpstack: Handle stack overflow on all stacks
  x86/asm: Move SYSENTER_stack to the beginning of struct tss_struct
  x86/asm: Remap the TSS into the cpu entry area
  x86/asm/64: Separate cpu_current_top_of_stack from TSS.sp0
  x86/espfix/64: Stop assuming that pt_regs is on the entry stack
  x86/asm/64: Use a percpu trampoline stack for IDT entries
  x86/asm/64: Return to userspace from the trampoline stack
  x86/entry/64: Create a percpu SYSCALL entry trampoline
  x86/irq: Remove an old outdated comment about context tracking races
  x86/irq/64: In the stack overflow warning, print the offending IP
  x86/entry/64: Move the IST stacks into cpu_entry_area
  x86/entry/64: Remove the SYSENTER stack canary
  x86/entry: Clean up SYSENTER_stack code

Dave Hansen (22):
  x86/mm/kaiser: Disable global pages by default with KAISER
  x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching
  x86/mm/kaiser: Introduce user-mapped per-cpu areas
  x86/mm/kaiser: Mark per-cpu data structures required for entry/exit
  x86/mm/kaiser: Unmap kernel from userspace page tables (core patch)
  x86/mm/kaiser: Allow NX poison to be set in p4d/pgd
  x86/mm/kaiser: Make sure static PGDs are 8k in size
  x86/mm/kaiser: Map cpu entry area
  x86/mm/kaiser: Map dynamically-allocated LDTs
  x86/mm/kaiser: Map espfix structures
  x86/mm/kaiser: Map entry stack variable
  x86/mm: Move CR3 construction functions
  x86/mm: Remove hard-coded ASID limit checks
  x86/mm: Put mmu-to-h/w ASID translation in one place
  x86/mm/kaiser: Allow flushing for future ASID switches
  x86/mm/kaiser: Use PCID feature to make user and kernel switches faster
  x86/mm/kaiser: Disable native VSYSCALL
  x86/mm/kaiser: Add debugfs file to turn KAISER on/off at runtime
  x86/mm/kaiser: Add a function to check for KAISER being enabled
  x86/mm/kaiser: Un-poison PGDs at runtime
  x86/mm/kaiser: Allow KAISER to be enabled/disabled at runtime
  x86/mm/kaiser: Add Kconfig

Hugh Dickins (1):
  x86/mm/kaiser: Map virtually-addressed performance monitoring buffers

Masami Hiramatsu (1):
  x86/decoder: Add new TEST instruction pattern

 Documentation/x86/kaiser.txt                | 162 ++++++++
 arch/x86/Kconfig                            |   8 +
 arch/x86/boot/compressed/pagetable.c        |   6 +
 arch/x86/entry/calling.h                    |  89 ++++
 arch/x86/entry/entry_32.S                   |   6 +-
 arch/x86/entry/entry_64.S                   | 207 ++++++++--
 arch/x86/entry/entry_64_compat.S            |  31 +-
 arch/x86/events/intel/ds.c                  |  49 ++-
 arch/x86/include/asm/cpufeatures.h          |   1 +
 arch/x86/include/asm/desc.h                 |  13 +-
 arch/x86/include/asm/fixmap.h               |  58 ++-
 arch/x86/include/asm/kaiser.h               |  68 +++
 arch/x86/include/asm/mmu_context.h          |  29 +-
 arch/x86/include/asm/pgtable.h              |  19 +-
 arch/x86/include/asm/pgtable_64.h           | 146 +++++++
 arch/x86/include/asm/pgtable_types.h        |  25 +-
 arch/x86/include/asm/processor.h            |  49 ++-
 arch/x86/include/asm/stacktrace.h           |   3 +
 arch/x86/include/asm/switch_to.h            |   2 +-
 arch/x86/include/asm/thread_info.h          |   2 +-
 arch/x86/include/asm/tlbflush.h             | 208 ++++++++--
 arch/x86/include/asm/traps.h                |   1 -
 arch/x86/include/uapi/asm/processor-flags.h |   3 +-
 arch/x86/kernel/asm-offsets.c               |   7 +
 arch/x86/kernel/asm-offsets_32.c            |   5 -
 arch/x86/kernel/asm-offsets_64.c            |   1 +
 arch/x86/kernel/cpu/common.c                | 139 +++++--
 arch/x86/kernel/doublefault.c               |  36 +-
 arch/x86/kernel/dumpstack.c                 |  42 +-
 arch/x86/kernel/dumpstack_32.c              |   6 +
 arch/x86/kernel/dumpstack_64.c              |   6 +
 arch/x86/kernel/espfix_64.c                 |  27 +-
 arch/x86/kernel/head_64.S                   |  30 +-
 arch/x86/kernel/irq.c                       |  12 -
 arch/x86/kernel/irq_64.c                    |   4 +-
 arch/x86/kernel/ldt.c                       |  25 +-
 arch/x86/kernel/process.c                   |  15 +-
 arch/x86/kernel/process_64.c                |   3 +-
 arch/x86/kernel/traps.c                     |  27 +-
 arch/x86/kernel/vmlinux.lds.S               |  10 +
 arch/x86/kvm/x86.c                          |   3 +-
 arch/x86/lib/x86-opcode-map.txt             |   2 +-
 arch/x86/mm/Makefile                        |   1 +
 arch/x86/mm/init.c                          |  75 ++--
 arch/x86/mm/kaiser.c                        | 620 ++++++++++++++++++++++++++++
 arch/x86/mm/kasan_init_64.c                 |  13 +-
 arch/x86/mm/pageattr.c                      |  18 +-
 arch/x86/mm/pgtable.c                       |  16 +-
 arch/x86/mm/tlb.c                           | 105 ++++-
 arch/x86/power/cpu.c                        |  16 +-
 arch/x86/xen/mmu_pv.c                       |   2 +-
 include/asm-generic/vmlinux.lds.h           |   7 +
 include/linux/kaiser.h                      |  38 ++
 include/linux/percpu-defs.h                 |  30 ++
 init/main.c                                 |   3 +
 kernel/fork.c                               |   1 +
 security/Kconfig                            |  10 +
 57 files changed, 2243 insertions(+), 297 deletions(-)
 create mode 100644 Documentation/x86/kaiser.txt
 create mode 100644 arch/x86/include/asm/kaiser.h
 create mode 100644 arch/x86/mm/kaiser.c
 create mode 100644 include/linux/kaiser.h

-- 
2.14.1

^ permalink raw reply	[flat|nested] 82+ messages in thread

end of thread, other threads:[~2017-12-02  7:39 UTC | newest]

Thread overview: 82+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-24  9:14 [PATCH 00/43] x86 entry-stack and Kaiser series, 2017/11/24 version Ingo Molnar
2017-11-24  9:14 ` [PATCH 01/43] x86/decoder: Add new TEST instruction pattern Ingo Molnar
2017-11-24 10:38   ` Borislav Petkov
2017-12-02  7:39   ` Robert Elliott (Persistent Memory)
2017-11-24  9:14 ` [PATCH 02/43] x86/entry/64: Allocate and enable the SYSENTER stack Ingo Molnar
2017-11-24  9:14 ` [PATCH 03/43] x86/dumpstack: Add get_stack_info() support for " Ingo Molnar
2017-11-24  9:14 ` [PATCH 04/43] x86/gdt: Put per-cpu GDT remaps in ascending order Ingo Molnar
2017-11-24  9:14 ` [PATCH 05/43] x86/fixmap: Generalize the GDT fixmap mechanism Ingo Molnar
2017-11-24 11:00   ` Borislav Petkov
2017-11-24  9:14 ` [PATCH 06/43] x86/kasan/64: Teach KASAN about the cpu_entry_area Ingo Molnar
2017-11-24  9:14 ` [PATCH 07/43] x86/entry: Fix assumptions that the HW TSS is at the beginning of cpu_tss Ingo Molnar
2017-11-24  9:14 ` [PATCH 08/43] x86/dumpstack: Handle stack overflow on all stacks Ingo Molnar
2017-11-24  9:14 ` [PATCH 09/43] x86/entry: Move SYSENTER_stack to the beginning of struct tss_struct Ingo Molnar
2017-11-24 11:44   ` Borislav Petkov
2017-11-24  9:14 ` [PATCH 10/43] x86/entry: Remap the TSS into the cpu entry area Ingo Molnar
2017-11-24  9:14 ` [PATCH 11/43] x86/entry/64: Separate cpu_current_top_of_stack from TSS.sp0 Ingo Molnar
2017-11-24 14:19   ` Borislav Petkov
2017-11-24  9:14 ` [PATCH 12/43] x86/espfix/64: Stop assuming that pt_regs is on the entry stack Ingo Molnar
2017-11-24  9:14 ` [PATCH 13/43] x86/entry/64: Use a percpu trampoline stack for IDT entries Ingo Molnar
2017-11-24 11:27   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 14/43] x86/entry/64: Return to userspace from the trampoline stack Ingo Molnar
2017-11-24 13:46   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 15/43] x86/entry/64: Create a percpu SYSCALL entry trampoline Ingo Molnar
2017-11-24 13:52   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 16/43] x86/irq: Remove an old outdated comment about context tracking races Ingo Molnar
2017-11-24 13:53   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 17/43] x86/irq/64: Print the offending IP in the stack overflow warning Ingo Molnar
2017-11-24 14:22   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 18/43] x86/entry/64: Move the IST stacks into cpu_entry_area Ingo Molnar
2017-11-24 14:23   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 19/43] x86/entry/64: Remove the SYSENTER stack canary Ingo Molnar
2017-11-24 14:23   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 20/43] x86/entry: Clean up SYSENTER_stack code Ingo Molnar
2017-11-24 14:24   ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 21/43] x86/mm/kaiser: Disable global pages by default with KAISER Ingo Molnar
2017-11-24  9:14 ` [PATCH 22/43] x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching Ingo Molnar
2017-11-24 12:05   ` Peter Zijlstra
2017-11-24 12:17     ` Ingo Molnar
2017-11-24 12:45       ` Peter Zijlstra
2017-11-24 13:04         ` Thomas Gleixner
2017-11-24  9:14 ` [PATCH 23/43] x86/mm/kaiser: Introduce user-mapped per-cpu areas Ingo Molnar
2017-11-24  9:14 ` [PATCH 24/43] x86/mm/kaiser: Mark per-cpu data structures required for entry/exit Ingo Molnar
2017-11-24  9:14 ` [PATCH 25/43] x86/mm/kaiser: Unmap kernel from userspace page tables (core patch) Ingo Molnar
2017-11-24 12:13   ` Peter Zijlstra
2017-11-24 13:46     ` Ingo Molnar
2017-11-24 12:16   ` Peter Zijlstra
2017-11-24 16:33     ` Dave Hansen
2017-11-26 15:13       ` Ingo Molnar
2017-11-24 13:30   ` Peter Zijlstra
2017-11-26 15:15     ` Ingo Molnar
2017-11-27  8:59       ` [PATCH] x86/mm/kaiser: Use the other page_table_lock pattern Peter Zijlstra
2017-11-27  8:59       ` [PATCH] mm: Unify page_table_lock allocation pattern Peter Zijlstra
2017-11-24  9:14 ` [PATCH 26/43] x86/mm/kaiser: Allow NX poison to be set in p4d/pgd Ingo Molnar
2017-11-24  9:14 ` [PATCH 27/43] x86/mm/kaiser: Make sure static PGDs are 8k in size Ingo Molnar
2017-11-24  9:14 ` [PATCH 28/43] x86/mm/kaiser: Map CPU entry area Ingo Molnar
2017-11-24 13:43   ` Peter Zijlstra
2017-11-24  9:14 ` [PATCH 29/43] x86/mm/kaiser: Map dynamically-allocated LDTs Ingo Molnar
2017-11-24  9:14 ` [PATCH 30/43] x86/mm/kaiser: Map espfix structures Ingo Molnar
2017-11-24 13:47   ` Peter Zijlstra
2017-11-24 16:17     ` Andy Lutomirski
2017-11-27  9:14       ` Peter Zijlstra
2017-11-27 15:35         ` Peter Zijlstra
2017-11-24  9:14 ` [PATCH 31/43] x86/mm/kaiser: Map entry stack variable Ingo Molnar
2017-11-24  9:14 ` [PATCH 32/43] x86/mm/kaiser: Map virtually-addressed performance monitoring buffers Ingo Molnar
2017-11-24  9:14 ` [PATCH 33/43] x86/mm: Move CR3 construction functions Ingo Molnar
2017-11-24  9:14 ` [PATCH 34/43] x86/mm: Remove hard-coded ASID limit checks Ingo Molnar
2017-11-24  9:14 ` [PATCH 35/43] x86/mm: Put mmu-to-h/w ASID translation in one place Ingo Molnar
2017-11-24  9:14 ` [PATCH 36/43] x86/mm: Allow flushing for future ASID switches Ingo Molnar
2017-11-24  9:14 ` [PATCH 37/43] x86/mm/kaiser: Use PCID feature to make user and kernel switches faster Ingo Molnar
2017-11-24  9:14 ` [PATCH 38/43] x86/mm/kaiser: Disable native VSYSCALL Ingo Molnar
2017-11-24  9:14 ` [PATCH 39/43] x86/mm/kaiser: Add debugfs file to turn KAISER on/off at runtime Ingo Molnar
2017-11-24  9:14 ` [PATCH 40/43] x86/mm/kaiser: Add a function to check for KAISER being enabled Ingo Molnar
2017-11-24  9:14 ` [PATCH 41/43] x86/mm/kaiser: Un-poison PGDs at runtime Ingo Molnar
2017-11-24  9:14 ` [PATCH 42/43] x86/mm/kaiser: Allow KAISER to be enabled/disabled " Ingo Molnar
2017-11-24  9:14 ` [PATCH 43/43] x86/mm/kaiser: Add Kconfig Ingo Molnar
2017-11-24 13:55 ` [PATCH 00/43] x86 entry-stack and Kaiser series, 2017/11/24 version Ingo Molnar
2017-11-24 15:23 ` Thomas Gleixner
2017-11-24 17:19   ` Ingo Molnar
2017-11-24 17:23 [PATCH 00/43] x86 entry-stack and Kaiser series, 2017/11/24, v2 version Ingo Molnar
2017-11-24 17:23 ` [PATCH 22/43] x86/mm/kaiser: Prepare assembly for entry/exit CR3 switching Ingo Molnar
2017-11-25  0:02   ` Thomas Gleixner
2017-11-25 12:41     ` Thomas Gleixner
2017-11-26 11:50   ` Borislav Petkov

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