[v6,0/5] xen: debugtrace cleanup and per-cpu buffer support

Message

Jürgen Groß Sept. 9, 2019, 7:35 a.m. UTC

Another debugtrace enhancement I needed for core scheduling debugging,
plus some cleanup.

Changes in V6:
- some comments by Jan addressed
- added patch 5

Changes in V5:
- several comments by Jan addressed (code: patches 1 and 4, commit
  message of patch 3)

Changes in V4:
- replaced patch 1 (original one was committed, new one requested by
  Jan Beulich)
- several comments by Jan addressed

Changes in V3:
- rebase to current staging

Changes in V2:
- added new patch 1 (preparing the move of debugtrace coding)
- patch 4 (v1 patch 3): avoid leaking buffer

Juergen Gross (5):
  xen: fix debugtrace clearing
  xen: move debugtrace coding to common/debugtrace.c
  xen: refactor debugtrace data
  xen: add per-cpu buffer option to debugtrace
  xen: add debugtrace entry when entry count is wrapping

 docs/misc/xen-command-line.pandoc |   7 +-
 xen/common/Makefile               |   1 +
 xen/common/debugtrace.c           | 303 ++++++++++++++++++++++++++++++++++++++
 xen/drivers/char/console.c        | 178 +---------------------
 4 files changed, 309 insertions(+), 180 deletions(-)
 create mode 100644 xen/common/debugtrace.c