[v2] TCG plugins new inline operations

[PATCH v2 0/5] TCG plugins new inline operations

Pierrick Bouvier posted 5 patches 1 month, 2 weeks ago

Diff against v1 v3 v4
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git fetch https://github.com/patchew-project/qemu tags/patchew/20240312075428.244210-1-pierrick.bouvier@linaro.org

Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Alexandre Iooss <erdnaxe@crans.org>, Mahmoud Mandour <ma.mandourr@gmail.com>, Pierrick Bouvier <pierrick.bouvier@linaro.org>

There is a newer version of this series

include/qemu/plugin.h        |  10 +-
include/qemu/qemu-plugin.h   |  80 +++++++-
plugins/plugin.h             |   9 +
accel/tcg/plugin-gen.c       | 359 +++++++++++++++++++++++++++++++----
plugins/api.c                |  76 +++++++-
plugins/core.c               |  28 ++-
tests/plugin/inline.c        | 130 ++++++++++++-
plugins/qemu-plugins.symbols |   2 +
8 files changed, 635 insertions(+), 59 deletions(-)

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[PATCH v2 0/5] TCG plugins new inline operations

Posted by Pierrick Bouvier 1 month, 2 weeks ago

This series implement two new operations for plugins:
- Store inline allows to write a specific value to a scoreboard.
- Conditional callback executes a callback only when a given condition is true.
  The condition is evaluated inline.

It's possible to mix various inline operations (add, store) with conditional
callbacks, allowing efficient "trap" based counters.

It builds on top of new scoreboard API, introduced in the previous series.

v2
--

- fixed issue with udata not being passed to conditional callback
- added specific test for this in tests/plugin/inline.c (udata was NULL before).

Pierrick Bouvier (5):
  plugins: prepare introduction of new inline ops
  plugins: add new inline op STORE_U64
  tests/plugin/inline: add test for STORE_U64 inline op
  plugins: conditional callbacks
  tests/plugin/inline: add test for condition callback

 include/qemu/plugin.h        |  10 +-
 include/qemu/qemu-plugin.h   |  80 +++++++-
 plugins/plugin.h             |   9 +
 accel/tcg/plugin-gen.c       | 359 +++++++++++++++++++++++++++++++----
 plugins/api.c                |  76 +++++++-
 plugins/core.c               |  28 ++-
 tests/plugin/inline.c        | 130 ++++++++++++-
 plugins/qemu-plugins.symbols |   2 +
 8 files changed, 635 insertions(+), 59 deletions(-)

-- 
2.39.2