[Qemu-devel] [PATCH v5 0/2] trace: Add event for vCPU memory accesses

[Lluís Vilanova]

This series adds an event to track information related to memory accesses
performed by the guest CPUs ("guest_mem_before").

A future series might extend this to contain the physical address and memory
value (e.g., "guest_mem_after").

Signed-off-by: Lluís Vilanova <address@hidden>
---

Changes in v5
-------------

* Simplify tracing code in "tcg/tcg-opc.c" [Richard Henderson]


Changes in v4
-------------

* Clarify alignment info is not on the trace.
* Add event information on commit log. [Richard Henderson]


Changes in v3
-------------

* Set "tcg_ctx.cpu" to NULL when unused. [Paolo Bonzini]
* Clarify how the 'info' field is interpreted.
* Fix argument size in 'info' field when using ld/st handlers.
* Fix reset of unused bits in 'info' field.


Changes in v2
-------------

* Rebase on bfc766d.
* Rename "guest_vmem" to "guest_mem_before"
* Add memory access information. [suggested by Peter Maydell]
* Drop event "guest_vmem_user_syscall". [suggested by Peter Maydell]


Lluís Vilanova (2):
      exec: [tcg] Track which vCPU is performing translation and execution
      trace: [all] Add "guest_mem_before" event


 include/exec/cpu_ldst_template.h          |   25 ++++++++++++++++
 include/exec/cpu_ldst_useronly_template.h |   22 ++++++++++++++
 target-alpha/translate.c                  |    1 +
 target-arm/translate.c                    |    1 +
 target-cris/translate.c                   |    1 +
 target-cris/translate_v10.c               |    1 +
 target-i386/translate.c                   |    1 +
 target-lm32/translate.c                   |    1 +
 target-m68k/translate.c                   |    1 +
 target-microblaze/translate.c             |    1 +
 target-mips/translate.c                   |    1 +
 target-moxie/translate.c                  |    1 +
 target-openrisc/translate.c               |    1 +
 target-ppc/translate.c                    |    1 +
 target-s390x/translate.c                  |    1 +
 target-sh4/translate.c                    |    1 +
 target-sparc/translate.c                  |    1 +
 target-tilegx/translate.c                 |    1 +
 target-tricore/translate.c                |    1 +
 target-unicore32/translate.c              |    1 +
 target-xtensa/translate.c                 |    1 +
 tcg/tcg-op.c                              |   10 ++++++
 tcg/tcg.h                                 |    4 +++
 trace-events                              |   22 ++++++++++++++
 trace/mem-internal.h                      |   46 +++++++++++++++++++++++++++++
 trace/mem.h                               |   34 +++++++++++++++++++++
 translate-all.c                           |    2 +
 27 files changed, 184 insertions(+)
 create mode 100644 trace/mem-internal.h
 create mode 100644 trace/mem.h


To: address@hidden
Cc: Stefan Hajnoczi <address@hidden>
Cc: Peter Maydell <address@hidden>
Cc: Richard Henderson <address@hidden>