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[v9,0/3] arm64 tagged address ABI

Message ID 20190821164730.47450-1-catalin.marinas@arm.com (mailing list archive)
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Series arm64 tagged address ABI | expand


Catalin Marinas Aug. 21, 2019, 4:47 p.m. UTC

This series is an update to the arm64 tagged address ABI documentation
patches v8, posted here:


From v8, I dropped patches 2 and 3 as they've been queued by Will via
the arm64 tree. Reposting patch 1 (unmodified) as it should be merged
via the mm tree.

Changes in v9:

- Replaced the emphasized/bold font with a typewriter one for
  function/constant names

- Simplified the mmap/brk bullet points when describing the tagged
  pointer origin

- Reworded expected syscall behaviour with valid tagged pointers

- Reworded the prctl/ioctl restrictions to clarify the allowed tagged
  pointers w.r.t. user data access by the kernel

Catalin Marinas (1):
  mm: untag user pointers in mmap/munmap/mremap/brk

Vincenzo Frascino (2):
  arm64: Define Documentation/arm64/tagged-address-abi.rst
  arm64: Relax Documentation/arm64/tagged-pointers.rst

 Documentation/arm64/tagged-address-abi.rst | 156 +++++++++++++++++++++
 Documentation/arm64/tagged-pointers.rst    |  23 ++-
 mm/mmap.c                                  |   5 +
 mm/mremap.c                                |   6 +-
 4 files changed, 178 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/arm64/tagged-address-abi.rst