[Qemu-devel] [PATCH 00/15] target-s390x: add Program-Event Recording feature

[Aurelien Jarno]

This patch set adds support for the Program-Event Recording (PER)
feature. It implements all the PER functionalities except the
following ones:
- zero-address-detection event (part of the zero-address-detection
  facility)
- transaction-end event (we don't implement transactional memory)

There are also a few limitations to the storage-alteration event, as it
doesn't support per ASC enablement, nor it doesn't correctly provide the
ASC used for a storage event in the PER AI field.

With this patch set, it's possible to fully use GDB in a s390x guest,
including stepping, breakpoints and watchpoints.


Aurelien Jarno (15):
  softmmu: provide tlb_vaddr_to_host function for user mode
  target-s390x: function to adjust the length wrt page boundary
  target-s390x: mvc_fast_memset: access memory through softmmu
  target-s390x: mvc_fast_memmove: access memory through softmmu
  target-s390x: add PER related constants
  target-s390x: add get_per_atmid function
  target-s390x: add get_per_in_range function
  target-s390x: basic PER event handling
  target-s390x: PER successful-branching event support
  target-s390x: PER instruction-fetch event support
  translate-all: fix watchpoints if retranslation not possible
  target-s390x: PER storage-alteration event support
  target-s390x: PER store-using-real-address event support
  target-s390x: PER instruction-fetch nullification event support
  target-s390x: PER: add Breaking-Event-Address register

 include/exec/cpu_ldst.h    |   8 +-
 target-s390x/cpu-qom.h     |   1 +
 target-s390x/cpu.c         |   7 ++
 target-s390x/cpu.h         |  55 +++++++++++--
 target-s390x/helper.c      | 130 +++++++++++++++++++++++++-----
 target-s390x/helper.h      |   3 +
 target-s390x/mem_helper.c  | 193 +++++++++++++++++++++++----------------------
 target-s390x/misc_helper.c |  46 +++++++++++
 target-s390x/translate.c   |  82 ++++++++++++++++++-
 translate-all.c            |  20 +++--
 10 files changed, 420 insertions(+), 125 deletions(-)

-- 
2.1.4