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[v3,0/5] pseries NUMA distance calculation

Message ID 20200929133817.560278-1-danielhb413@gmail.com
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Series pseries NUMA distance calculation | expand

Message

Daniel Henrique Barboza Sept. 29, 2020, 1:38 p.m. UTC 
This third version is based on review comments and suggestion
from David.

changes from v2:
- patch 3 from v2: removed
- patch 2:
    * added David's R-b
- patch 3 (former 4 in v2):
    * added Greg and David R-bs
    * added G_STATIC_ASSERT() before memcpy()
- patch 4 (former 5 in v2):
    * clarified what 'node 0' means in the commit msg
    * rewrote a bit to clarify what the logic does
    * the translation of user distance to PAPR distance logic,
      previously presented in the former patch 3 in v2, was folded
      into spapr_numa_get_numa_level()
    * removed needless 'if' when assigning associativities in
      spapr_numa_define_associativity_domains()
- patch 5 (former 6 in v2):
    * moved the section describing the current logic up
    * created a new 'legacy' section describing the pre-5.2
      behavior
    * added a 'known limitations' section documentating that
      we don't support asymmetrical topologies and we do a poor
      job approximating 'non-transitive' topologies

v2 link: https://lists.gnu.org/archive/html/qemu-devel/2020-09/msg09073.html

Daniel Henrique Barboza (5):
  spapr: add spapr_machine_using_legacy_numa() helper
  spapr_numa: forbid asymmetrical NUMA setups
  spapr_numa: change reference-points and maxdomain settings
  spapr_numa: consider user input when defining associativity
  specs/ppc-spapr-numa: update with new NUMA support

 docs/specs/ppc-spapr-numa.rst | 206 +++++++++++++++++++++++++++++++++-
 hw/ppc/spapr.c                |  12 ++
 hw/ppc/spapr_numa.c           | 195 ++++++++++++++++++++++++++++++--
 include/hw/ppc/spapr.h        |   2 +
 4 files changed, 406 insertions(+), 9 deletions(-)