[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation me
From: |
Frederic Konrad |
Subject: |
Re: [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation mechanism |
Date: |
Thu, 28 Jan 2016 16:26:15 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 |
Hi,
Is there a git tree with this series somewhere?
Looks nice.
Thanks,
Fred
On 14/01/2016 11:55, Peer Adelt wrote:
> Hey guys :)
>
> We have developed a generic concept to annotate TranslationBlocks during
> runtime. The initial idea was to use it for time annotation with data from
> static analysis tools. However, we have kept this approach as generic as
> possible to allow other kinds of annotation (e.g. power consumption, etc.).
>
> Our extension expects an XML file specifying the CFG of the program (similar
> to what you get from "gcc -ftree-dump-cfg"), where the edges are annotated
> with the data, that QEMU ought to accumulate during program execution. Each
> edge has a source and target context in which it is executed.
> For example: a for-loop that runs several times has its own context dependent
> edge for each iteration. We plan on making this more flexible by allowing
> to specify iterative context edges, i.e. from context n to context n+1.
>
> This approach is not limited to one target architecture but we only tested
> it for ARM and TriCore so far.
>
> To show the current state of this patch we have attached a very small example
> consisting of an ARM STM32F205 program and a timing annotation XML file (see
> reply to this letter). You can provide the XML file to QEMU with the
> "-annotation <XML-File>" option. During execution, the "value_sum" field of
> the CPUState data structure will accumulate a total value of 70 (cycles).
>
> Are there any comments? Is this in general a good idea to be added to upstream
> QEMU?
>
> All the best,
> Peer
>
> Peer Adelt (3):
> tb-annotation: Added annotation XML file parser
> tb-annotation: Add control flow graph mapper
> tb-annotation: Activate annotation extension
>
> Makefile | 5 +-
> Makefile.objs | 4 +
> Makefile.target | 4 +-
> configure | 13 ++
> include/exec/gen-icount.h | 18 +++
> include/qom/cpu.h | 9 ++
> include/tb-annotation/tb-annotation-parser.h | 29 +++++
> include/tb-annotation/tb-annotation.h | 64 ++++++++++
> qemu-options.hx | 8 ++
> tb-annotation/Makefile.objs | 1 +
> tb-annotation/tb-annotation-parser.c | 174
> +++++++++++++++++++++++++++
> tcg-runtime.c | 99 +++++++++++++++
> tcg/tcg-runtime.h | 4 +
> vl.c | 25 ++++
> 14 files changed, 454 insertions(+), 3 deletions(-)
> create mode 100644 include/tb-annotation/tb-annotation-parser.h
> create mode 100644 include/tb-annotation/tb-annotation.h
> create mode 100644 tb-annotation/Makefile.objs
> create mode 100644 tb-annotation/tb-annotation-parser.c
>
- [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation mechanism, Peer Adelt, 2016/01/14
- [Qemu-devel] [RFC PATCH 1/3] tb-annotation: Added annotation XML file parser, Peer Adelt, 2016/01/14
- [Qemu-devel] [RFC PATCH 3/3] tb-annotation: Activate annotation extension, Peer Adelt, 2016/01/14
- Re: [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation mechanism, Peer Adelt, 2016/01/14
- [Qemu-devel] [RFC PATCH 2/3] tb-annotation: Add control flow graph mapper, Peer Adelt, 2016/01/14
- Re: [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation mechanism, Peter Maydell, 2016/01/25
Re: [Qemu-devel] [RFC PATCH 0/3] (Resend) TranslationBlock annotation mechanism,
Frederic Konrad <=