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Code that checks dstate is unaware of SystemTap and LTTng UST dstate, so
the following trace event will not fire when solely enabled by SystemTap
or LTTng UST:
if (trace_event_get_state(TRACE_MY_EVENT)) {
str = g_strdup_printf("Expensive string to generate ...",
...);
trace_my_event(str);
g_free(str);
}
Add trace_event_get_state_backends() to fetch backend dstate. Those
backends that use QEMU dstate fetch it as part of
generate_h_backend_dstate().
Update existing trace_event_get_state() callers to use
trace_event_get_state_backends() instead.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170731140718.22010-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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With the move of some docs/ to docs/devel/ on ac06724a71,
a couple of references were not updated.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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With the move of some docs to docs/interop on ac06724a71,
a couple of references were not updated.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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With the move of some docs to docs/interop on d59157e, a couple of
references were not updated.
Signed-off-by: Cleber Rosa <crosa@redhat.com>
[PMD: fixed a typo and another reference of docs/interop/qmp-spec.txt]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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I expect the 'null' type to be useful mostly for members of alternate
types.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
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# gpg: Signature made Tue 18 Jul 2017 05:15:03 BST
# gpg: using RSA key 0xBDBE7B27C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg: aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg: aka "Jeffrey Cody <codyprime@gmail.com>"
# Primary key fingerprint: 9957 4B4D 3474 90E7 9D98 D624 BDBE 7B27 C0DE 3057
* remotes/cody/tags/block-pull-request:
live-block-ops.txt: Rename, rewrite, and improve it
bitmaps.md: Convert to rST; move it into 'interop' dir
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This is part of the on-going effort to convert QEMU upstream
documentation syntax to reStructuredText (rST).
The conversion to rST was done using:
$ pandoc -f markdown -t rst bitmaps.md -o bitmaps.rst
Then, make a couple of small syntactical adjustments. While at it,
reword a statement to avoid ambiguity. Addressing the feedback from
this thread:
https://lists.nongnu.org/archive/html/qemu-devel/2017-06/msg05428.html
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170717105205.32639-2-kchamart@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
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into staging
# gpg: Signature made Mon 17 Jul 2017 13:11:17 BST
# gpg: using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request:
trace: update old trace events in docs
trace: [trivial] Statically enable all guest events
trace: [tcg, trivial] Re-align generated code
trace: [tcg] Do not generate TCG code to trace dynamically-disabled events
exec: [tcg] Use different TBs according to the vCPU's dynamic tracing state
trace: [tcg] Delay changes to dynamic state when translating
trace: Allocate cpu->trace_dstate in place
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Commit c5f1ad429cdf26023cf331075a7d327708e3db6d ("block: Remove
bdrv_aio_readv/writev/flush()") removed
bdrv_aio_readv()/bdrv_aio_writev() so the example in the tracing
documentation is no longer valid.
Reported-by: Wang Dong <dongdwdw@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170714133111.27359-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Add a section to docs/devel/memory.txt about migration of
the backing memory for RAM regions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-12-git-send-email-peter.maydell@linaro.org
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Developer documentation should be its own manual. As a start, move all
developer-oriented files to a separate directory.
Also move non-text files to their own directories: docs/config/ for
QEMU -readconfig input, and docs/spin/ for formal models to be used
with the SPIN model checker.
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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