[Qemu-devel] [PATCH 0/9]

[Halil Pasic <pasic@linux.vnet.ibm.com>]

This series has a character of a refactoring, as the initial motivation
was improving readability and reducing complexity.

Despite of the original intent the tree first patches buxfixes, and
according to Dong Jia the patch-set also has a functional value: for ccw
pass-through, he is planing to pass-through the instruction completion
information (cc or interruption condition) from the kernel, and this
patch set can pretty much be seen as a preparation for that.

The basic idea is: tell how to handle an unusual conditon where it's
identified, instead of mapping it to an errno (more or less arbitrarily),
then possibly mapping these errnos around, to finally (mentally) map the
errno back to the condition and take appropriate action. 

At the end of the series we also have 125 lines of code less to maintain,
and the executable got a bit smaller too.

Halil Pasic (9):
  s390x/css: fix cc handling for XSCH
  s390x: fix invalid use of cc 1 for SSCH
  s390x/css: be more consistent if broken beyond repair
  s390x: refactor error handling for SSCH and RSCH
  s390x: refactor error handling for XSCH handler
  s390x: refactor error handling for CSCH handler
  s390x: refactor error handling for HSCH handler
  s390x: refactor error handling for MSCH handler
  s390x: factor out common ioinst handler logic

 hw/s390x/css.c              | 158 ++++++++++++--------------------------
 hw/s390x/s390-ccw.c         |   8 +-
 hw/vfio/ccw.c               |  32 ++++++--
 include/hw/s390x/css.h      |  38 +++++++---
 include/hw/s390x/s390-ccw.h |   2 +-
 target/s390x/ioinst.c       | 181 ++++++++++----------------------------------
 6 files changed, 147 insertions(+), 272 deletions(-)

-- 
2.13.5