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  1. 16 3月, 2017 8 次提交
  3. 07 3月, 2017 3 次提交
    • M
      test-qapi-util: New, covering qapi/qapi-util.c · 6c873d11
      由 Markus Armbruster 提交于 
      Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NKevin Wolf <kwolf@redhat.com>
Message-Id: <1488317230-26248-18-git-send-email-armbru@redhat.com>
      6c873d11
    • M
      keyval: New keyval_parse() · d454dbe0
      由 Markus Armbruster 提交于 
      keyval_parse() parses KEY=VALUE,... into a QDict.  Works like
qemu_opts_parse(), except:

* Returns a QDict instead of a QemuOpts (d'oh).

* Supports nesting, unlike QemuOpts: a KEY is split into key
  fragments at '.' (dotted key convention; the block layer does
  something similar on top of QemuOpts).  The key fragments are QDict
  keys, and the last one's value is updated to VALUE.

* Each key fragment may be up to 127 bytes long.  qemu_opts_parse()
  limits the entire key to 127 bytes.

* Overlong key fragments are rejected.  qemu_opts_parse() silently
  truncates them.

* Empty key fragments are rejected.  qemu_opts_parse() happily
  accepts empty keys.

* It does not store the returned value.  qemu_opts_parse() stores it
  in the QemuOptsList.

* It does not treat parameter "id" specially.  qemu_opts_parse()
  ignores all but the first "id", and fails when its value isn't
  id_wellformed(), or duplicate (a QemuOpts with the same ID is
  already stored).  It also screws up when a value contains ",id=".

* Implied value is not supported.  qemu_opts_parse() desugars "foo" to
  "foo=on", and "nofoo" to "foo=off".

* An implied key's value can't be empty, and can't contain ','.

I intend to grow this into a saner replacement for QemuOpts.  It'll
take time, though.

Note: keyval_parse() provides no way to do lists, and its key syntax
is incompatible with the __RFQDN_ prefix convention for downstream
extensions, because it blindly splits at '.', even in __RFQDN_.  Both
issues will be addressed later in the series.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Message-Id: <1488317230-26248-4-git-send-email-armbru@redhat.com>
      d454dbe0
    • M
      tests: Fix gcov-files-test-qemu-opts-y, gcov-files-test-logging-y · 112c9446
      由 Markus Armbruster 提交于 
      Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NKevin Wolf <kwolf@redhat.com>
Message-Id: <1488317230-26248-3-git-send-email-armbru@redhat.com>
      112c9446
  5. 05 3月, 2017 2 次提交
    • M
      tests-qobject-input-strict: Merge into test-qobject-input-visitor · 77c47de2
      由 Markus Armbruster 提交于 
      Much of test-qobject-input-strict.c duplicates
test-qobject-input-strict.c, but with less assertions on expected
output:

* test_validate_struct() duplicates test_visitor_in_struct()

* test_validate_struct_nested() duplicates
  test_visitor_in_struct_nested()

* test_validate_list() duplicates the first half of
  test_visitor_in_list()

* test_validate_union_native_list() duplicates
  test_visitor_in_native_list_int()

* test_validate_union_flat() duplicates test_visitor_in_union_flat()

* test_validate_alternate() duplicates the first part of
  test_visitor_in_alternate()

Merge the remaining test cases into test-qobject-input-visitor.c, and
drop the now redundant test-qobject-input-strict.c.

Test case "/visitor/input-strict/fail/list" isn't really about lists,
it's about a bad struct nested in a list.  Rename accordingly.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-21-git-send-email-armbru@redhat.com>
      77c47de2
    • M
      qmp-test: New, covering basic QMP protocol · f66e7ac8
      由 Markus Armbruster 提交于 
      Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-Id: <1488544368-30622-4-git-send-email-armbru@redhat.com>
      f66e7ac8
  7. 02 3月, 2017 1 次提交
  9. 28 2月, 2017 1 次提交
  11. 21 2月, 2017 2 次提交
    • P
      aio: introduce aio_co_schedule and aio_co_wake · 0c330a73
      由 Paolo Bonzini 提交于 
      aio_co_wake provides the infrastructure to start a coroutine on a "home"
AioContext.  It will be used by CoMutex and CoQueue, so that coroutines
don't jump from one context to another when they go to sleep on a
mutex or waitqueue.  However, it can also be used as a more efficient
alternative to one-shot bottom halves, and saves the effort of tracking
which AioContext a coroutine is running on.

aio_co_schedule is the part of aio_co_wake that starts a coroutine
on a remove AioContext, but it is also useful to implement e.g.
bdrv_set_aio_context callbacks.

The implementation of aio_co_schedule is based on a lock-free
multiple-producer, single-consumer queue.  The multiple producers use
cmpxchg to add to a LIFO stack.  The consumer (a per-AioContext bottom
half) grabs all items added so far, inverts the list to make it FIFO,
and goes through it one item at a time until it's empty.  The data
structure was inspired by OSv, which uses it in the very code we'll
"port" to QEMU for the thread-safe CoMutex.

Most of the new code is really tests.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: 20170213135235.12274-3-pbonzini@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      0c330a73
    • P
      block: move AioContext, QEMUTimer, main-loop to libqemuutil · c2b38b27
      由 Paolo Bonzini 提交于 
      AioContext is fairly self contained, the only dependency is QEMUTimer but
that in turn doesn't need anything else.  So move them out of block-obj-y
to avoid introducing a dependency from io/ to block-obj-y.

main-loop and its dependency iohandler also need to be moved, because
later in this series io/ will call iohandler_get_aio_context.

[Changed copyright "the QEMU team" to "other QEMU contributors" as
suggested by Daniel Berrange and agreed by Paolo.
--Stefan]
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: 20170213135235.12274-2-pbonzini@redhat.com
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
      c2b38b27
  13. 01 2月, 2017 2 次提交
  15. 31 1月, 2017 5 次提交
  17. 28 1月, 2017 1 次提交
    • M
      tests: fix linking test-char on win32 · 7a008751
      由 Marc-André Lureau 提交于 
      test.char.exe fails to link:
qemu-char.o: In function `win_chr_free':
/home/elmarco/src/qemu/qemu-char.c:2149: undefined reference to `qemu_del_polling_cb'
/home/elmarco/src/qemu/qemu-char.c:2151: undefined reference to `qemu_del_polling_cb'
qemu-char.o: In function `win_stdio_thread':
/home/elmarco/src/qemu/qemu-char.c:2568: undefined reference to `qemu_del_wait_object'
qemu-char.o: In function `qemu_chr_open_stdio':
/home/elmarco/src/qemu/qemu-char.c:2661: undefined reference to `qemu_add_wait_object'
/home/elmarco/src/qemu/qemu-char.c:2646: undefined reference to
`qemu_add_wait_object'
...

It needs main-loop.o symbols, among others. Linking with
$(test-block-obj-y) brings what's necessary. We could try to eventually
strip to the minimum if needed.
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
      7a008751
  19. 17 1月, 2017 1 次提交
  21. 16 1月, 2017 1 次提交
    • M
      qapi: add qapi2texi script · 3313b612
      由 Marc-André Lureau 提交于 
      As the name suggests, the qapi2texi script converts JSON QAPI
description into a texi file suitable for different target
formats (info/man/txt/pdf/html...).

It parses the following kind of blocks:

Free-form:

  ##
  # = Section
  # == Subsection
  #
  # Some text foo with *emphasis*
  # 1. with a list
  # 2. like that
  #
  # And some code:
  # | $ echo foo
  # | -> do this
  # | <- get that
  #
  ##

Symbol description:

  ##
  # @symbol:
  #
  # Symbol body ditto ergo sum. Foo bar
  # baz ding.
  #
  # @param1: the frob to frobnicate
  # @param2: #optional how hard to frobnicate
  #
  # Returns: the frobnicated frob.
  #          If frob isn't frobnicatable, GenericError.
  #
  # Since: version
  # Notes: notes, comments can have
  #        - itemized list
  #        - like this
  #
  # Example:
  #
  # -> { "execute": "quit" }
  # <- { "return": {} }
  #
  ##

That's roughly following the following EBNF grammar:

api_comment = "##\n" comment "##\n"
comment = freeform_comment | symbol_comment
freeform_comment = { "# " text "\n" | "#\n" }
symbol_comment = "# @" name ":\n" { member | tag_section | freeform_comment }
member = "# @" name ':' [ text ] "\n" freeform_comment
tag_section = "# " ( "Returns:", "Since:", "Note:", "Notes:", "Example:", "Examples:" ) [ text ]  "\n" freeform_comment
text = free text with markup

Note that the grammar is ambiguous: a line "# @foo:\n" can be parsed
both as freeform_comment and as symbol_comment.  The actual parser
recognizes symbol_comment.

See docs/qapi-code-gen.txt for more details.

Deficiencies and limitations:
- the generated QMP documentation includes internal types
- union type support is lacking
- type information is lacking in generated documentation
- doc comment error message positions are imprecise, they point
  to the beginning of the comment.
- a few minor issues, all marked TODO/FIXME in the code
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170113144135.5150-16-marcandre.lureau@redhat.com>
Reviewed-by: NMarkus Armbruster <armbru@redhat.com>
[test-qapi.py tweaked to avoid trailing empty lines in .out]
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
      3313b612
  23. 11 1月, 2017 1 次提交
  25. 22 12月, 2016 1 次提交
  27. 16 12月, 2016 1 次提交
  29. 15 11月, 2016 1 次提交
  31. 28 10月, 2016 2 次提交
  33. 26 10月, 2016 1 次提交
    • E
      tests: add atomic_add-bench · 070e3edc
      由 Emilio G. Cota 提交于 
      With this microbenchmark we can measure the overhead of emulating atomic
instructions with a configurable degree of contention.

The benchmark spawns $n threads, each performing $o atomic ops (additions)
in a loop. Each atomic operation is performed on a different cache line
(assuming lines are 64b long) that is randomly selected from a range [0, $r).

[ Note: each $foo corresponds to a -foo flag ]
Signed-off-by: NEmilio G. Cota <cota@braap.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Message-Id: <1467054136-10430-20-git-send-email-cota@braap.org>
      070e3edc
  35. 25 10月, 2016 2 次提交
  37. 24 10月, 2016 2 次提交
  39. 18 10月, 2016 2 次提交