Commit Graph

910 Commits

Author SHA1 Message Date
Peter Maydell a309b290aa Error reporting patches for 2017-07-13
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2017-07-13' into staging

Error reporting patches for 2017-07-13

# gpg: Signature made Thu 13 Jul 2017 12:55:45 BST
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2017-07-13:
  Convert error_report*_err() to warn_report*_err()
  error: Implement the warn and free Error functions
  char-socket: Report TCP socket waiting as information
  Convert error_report() to warn_report()
  error: Functions to report warnings and informational messages
  util/qemu-error: Rename error_print_loc() to be more generic
  websock: Don't try to set *errp directly
  block: Don't try to set *errp directly
  xilinx: Fix latent error handling bug

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-14 09:36:40 +01:00
Peter Maydell 49bcce4b9c QAPI patches for 2017-07-12
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2017-07-12' into staging

QAPI patches for 2017-07-12

# gpg: Signature made Wed 12 Jul 2017 17:07:20 BST
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2017-07-12:
  scripts: use build_ prefix for string not piped through cgen()
  qobject: Update coccinelle script to catch Q{INC, DEC}REF
  qobject: Catch another straggler for use of qdict_put_str()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-13 16:56:06 +01:00
Alistair Francis e43ead1d0b error: Implement the warn and free Error functions
Implement warn_report_err() and warn_reportf_err() functions which
are the same as the error_report_err() and error_reportf_err()
functions except report a warning instead of an error.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <276ff93eadc0b01b8243cc61ffc331f77922c0d0.1499866456.git.alistair.francis@xilinx.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-13 13:50:19 +02:00
Alistair Francis 97f40301f1 error: Functions to report warnings and informational messages
Add warn_report(), warn_vreport() for reporting warnings, and
info_report(), info_vreport() for informational messages.

These are implemented them with a helper function factored out of
error_vreport(), suitably generalized. This patch makes no changes
to the output of the original error_report() function.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <c89e9980019f296ec9aa38d7689ac4d5c369296d.1499866456.git.alistair.francis@xilinx.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-13 13:49:54 +02:00
Marc-André Lureau 086ee7a620 scripts: use build_ prefix for string not piped through cgen()
The gen_ prefix is awkward.  Generated C should go through cgen()
exactly once (see commit 1f9a7a1).  The common way to get this wrong is
passing a foo=gen_foo() keyword argument to mcgen().  I'd like us to
adopt a naming convention where gen_ means "something that's been piped
through cgen(), and thus must not be passed to cgen() or mcgen()".
Requires renaming gen_params(), gen_marshal_proto() and
gen_event_send_proto().

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170601124143.10915-1-marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-12 17:51:54 +02:00
Eric Blake 8a4613a0ab qobject: Update coccinelle script to catch Q{INC, DEC}REF
The recent commit b097efc0 used qobject_decref(QOBJECT(E)), even
though we already have QDECREF(E) for that purpose.  We can update
our coccinelle script to catch any future relapses; with that in
place, the rest of the patch is generated with:
 spatch --sp-file scripts/coccinelle/qobject.cocci \
        --macro-file scripts/cocci-macro-file.h --dir . --in-place

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20170624181008.25497-3-eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-07-12 17:51:54 +02:00
Paolo Bonzini 44d619beb5 hxtool: remove dead -q option
This was used to extract .txt documentation for QMP.  This was
changed to use the QAPI schema instead, so zap it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-07-11 17:42:49 +03:00
Paolo Bonzini e8c2091d4c checkpatch: should not use signal except for SIG_DFL or SIG_IGN
Using signal to establish a signal handler is not portable; on
SysV systems, the signal handler would be reset to SIG_DFL after
delivery, while BSD preserves the signal handler.  Daniel Berrange
reported that (to complicate matters further) the signal system call
has SysV behavior, but glibc signal() actually calls the sigaction
system call to provide BSD behavior.

However, using signal() to set a signal's disposition to SIG_DFL
or SIG_IGN is portable and is a relatively common occurrence in
QEMU source code, so allow that.

Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-07-04 14:39:28 +02:00
Marc-André Lureau 60390d2dc8 qapi: Remove visit_start_alternate() parameter promote_int
Before the previous commit, parameter promote_int = true made
visit_start_alternate() with an input visitor avoid QTYPE_QINT
variants and create QTYPE_QFLOAT variants instead.  This was used
where QTYPE_QINT variants were invalid.

The previous commit fused QTYPE_QINT with QTYPE_QFLOAT, rendering
promote_int useless and unused.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170607163635.17635-8-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:31 +02:00
Marc-André Lureau 01b2ffcedd qapi: merge QInt and QFloat in QNum
We would like to use a same QObject type to represent numbers, whether
they are int, uint, or floats. Getters will allow some compatibility
between the various types if the number fits other representations.

Add a few more tests while at it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[parse_stats_intervals() simplified a bit, comment in
test_visitor_in_int_overflow() tidied up, suppress bogus warnings]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-06-20 14:31:31 +02:00
Peter Maydell 5093f028ce -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Wed 07 Jun 2017 19:55:32 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:
  simpletrace: Improve the error message if event is not declared

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-12 14:51:30 +01:00
Philippe Mathieu-Daudé f652402487 coccinelle: fix typo in comment
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-07 14:38:44 +01:00
Jose Ricardo Ziviani 249e9f792c simpletrace: Improve the error message if event is not declared
Today, if we use a trace-event file which does not declare an event
existing in the log file we'll get the following error:

$ scripts/simpletrace.py trace-events trace-68508
Traceback (most recent call last):
  File "scripts/simpletrace.py", line 242, in <module>
    run(Formatter())
  File "scripts/simpletrace.py", line 217, in run
    process(events, sys.argv[2], analyzer, read_header=read_header)
  File "scripts/simpletrace.py", line 192, in process
    for rec in read_trace_records(edict, log):
  File "scripts/simpletrace.py", line 107, in read_trace_records
    rec = read_record(edict, idtoname, fobj)
  File "scripts/simpletrace.py", line 71, in read_record
    return get_record(edict, idtoname, rechdr, fobj)
  File "scripts/simpletrace.py", line 45, in get_record
    event = edict[name]
KeyError: 'qemu_mutex_locked'

This patch improves this error by adding a hint instead of just that
KeyError log:

$ scripts/simpletrace.py trace-events trace-68508
'qemu_mutex_locked' event is logged but is not declared in the trace
events file, try using trace-events-all instead.

Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1496075404-8845-1-git-send-email-joserz@linux.vnet.ibm.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-06-07 14:34:19 +01:00
Eduardo Habkost 23ea4f3032 scripts: Test script to look for -device crashes
Test code to check if we can crash QEMU using -device. It will
test all accel/machine/device combinations by default, which may
take a few hours (it's more than 90k test cases). There's a "-r"
option that makes it test a random sample of combinations.

The scripts contains a whitelist for: 1) known error messages
that make QEMU exit cleanly; 2) known QEMU crashes.

This is the behavior when the script finds a failure:

* Known clean (exitcode=1) errors generate DEBUG messages
  (hidden by default)
* Unknown clean (exitcode=1) errors will generate INFO messages
  (visible by default)
* Known crashes generate error messages, but are not fatal
  (unless --strict mode is used)
* Unknown crashes generate fatal error messages

Having an updated whitelist of known clean errors is useful to make the
script less verbose and run faster when in --quick mode, but the
whitelist doesn't need to be always up to date.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-06-05 14:59:09 -03:00
Eduardo Habkost b2b8d98675 qemu.py: Add QEMUMachine.exitcode() method
Allow the exit code of QEMU to be queried by scripts.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-06-05 14:59:09 -03:00
Eduardo Habkost 37bbcd5757 qemu.py: Don't set _popen=None on error/shutdown
Keep the Popen object around to we can query its exit code later.

To keep the existing 'self._popen is None' checks working, add a
is_running() method, that will check if the process is still running.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170526181200.17227-2-ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-06-05 14:59:09 -03:00
Markus Armbruster c0644771eb qapi: Reject alternates that can't work with keyval_parse()
Alternates are sum types like unions, but use the JSON type on the
wire / QType in QObject instead of an explicit tag.  That's why we
require alternate members to have distinct QTypes.

The recently introduced keyval_parse() (commit d454dbe) can only
produce string scalars.  The qobject_input_visitor_new_keyval() input
visitor mostly hides the difference, so code using a QObject input
visitor doesn't have to care whether its input was parsed from JSON or
KEY=VALUE,...  The difference leaks for alternates, as noted in commit
0ee9ae7: a non-string, non-enum scalar alternate value can't currently
be expressed.

In part, this is just our insufficiently sophisticated implementation.
Consider alternate type 'GuestFileWhence'.  It has an integer member
and a 'QGASeek' member.  The latter is an enumeration with values
'set', 'cur', 'end'.  The meaning of b=set, b=cur, b=end, b=0, b=1 and
so forth is perfectly obvious.  However, our current implementation
falls apart at run time for b=0, b=1, and so forth.  Fixable, but not
today; add a test case and a TODO comment.

Now consider an alternate type with a string and an integer member.
What's the meaning of a=42?  Is it the string "42" or the integer 42?
Whichever meaning you pick makes the other inexpressible.  This isn't
just an implementation problem, it's fundamental.  Our current
implementation will pick string.

So far, we haven't needed such alternates.  To make sure we stop and
think before we add one that cannot sanely work with keyval_parse(),
let's require alternate members to have sufficiently distinct
representation in KEY=VALUE,... syntax:

* A string member clashes with any other scalar member

* An enumeration member clashes with bool members when it has value
  'on' or 'off'.

* An enumeration member clashes with numeric members when it has a
  value that starts with '-', '+', or a decimal digit.  This is a
  rather lazy approximation of the actual number syntax accepted by
  the visitor.

  Note that enumeration values starting with '-' and '+' are rejected
  elsewhere already, but better safe than sorry.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1495471335-23707-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-05-31 16:04:09 +02:00
Stefan Hajnoczi d0eda02938 QAPI patches for 2017-05-23
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Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-23' into staging

QAPI patches for 2017-05-23

# gpg: Signature made Tue 23 May 2017 12:33:32 PM BST
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* armbru/tags/pull-qapi-2017-05-23:
  qapi-schema: Remove obsolete note from ObjectTypeInfo
  block: Use QDict helpers for --force-share
  shutdown: Expose bool cause in SHUTDOWN and RESET events
  shutdown: Add source information to SHUTDOWN and RESET
  shutdown: Preserve shutdown cause through replay
  shutdown: Prepare for use of an enum in reset/shutdown_request
  shutdown: Simplify shutdown_signal
  sockets: Plug memory leak in socket_address_flatten()
  scripts/qmp/qom-set: fix the value argument passed to srv.command()

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-30 09:33:40 +01:00
Greg Kurz fe2f74af2b scripts/qmp/qom-set: fix the value argument passed to srv.command()
When invoking the script with -s, we end up passing a bogus value
to QEMU:

$ ./scripts/qmp/qom-set -s /var/tmp/qmp-sock-exp /machine.accel kvm
{}
$ ./scripts/qmp/qom-get -s /var/tmp/qmp-sock-exp /machine.accel
/var/tmp/qmp-sock-exp

This happens because sys.argv[2] isn't necessarily the command line
argument that holds the value. It is sys.argv[4] when -s was also
passed.

Actually, the code already has a variable to handle that. This patch
simply uses it.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <149373610338.5144.9635049015143453288.stgit@bahia.lan>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-23 13:28:17 +02:00
Cornelia Huck 74c98e20a6 linux-headers: update
Update against Linux v4.12-rc1.

Also include the new vfio_ccw.h header.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2017-05-19 12:29:01 +02:00
Stefan Hajnoczi f465706e59 trivial patches for 2017-05-10
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Merge remote-tracking branch 'mjt/tags/trivial-patches-fetch' into staging

trivial patches for 2017-05-10

# gpg: Signature made Wed 10 May 2017 03:19:30 AM EDT
# gpg:                using RSA key 0x701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* mjt/tags/trivial-patches-fetch: (23 commits)
  tests: Remove redundant assignment
  MAINTAINERS: Update paths for AioContext implementation
  MAINTAINERS: Update paths for main loop
  jazz_led: fix bad snprintf
  tests: Ignore another built executable (test-hmp)
  scripts: Switch to more portable Perl shebang
  scripts/qemu-binfmt-conf.sh: Fix shell portability issue
  virtfs: allow a device id to be specified in the -virtfs option
  hw/core/generic-loader: Fix crash when running without CPU
  virtio-blk: Remove useless condition around g_free()
  qemu-doc: Fix broken URLs of amnhltm.zip and dosidle210.zip
  use _Static_assert in QEMU_BUILD_BUG_ON
  channel-file: fix wrong parameter comments
  block: Make 'replication_state' an enum
  util: Use g_malloc/g_free in envlist.c
  qga: fix compiler warnings (clang 5)
  device_tree: fix compiler warnings (clang 5)
  usb-ccid: make ccid_write_data_block() cope with null buffers
  tests: Ignore more test executables
  Add 'none' as type for drive's if option
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-10 12:31:19 -04:00
Kamil Rytarowski b7d5a9c2c6 scripts: Switch to more portable Perl shebang
The default NetBSD package manager is pkgsrc and it installs Perl
along other third party programs under custom and configurable prefix.
The default prefix for binary prebuilt packages is /usr/pkg, and the
Perl executable lands in /usr/pkg/bin/perl.

This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's
the most portable solution that should work for almost everybody.
Perl's executable is detected automatically.

This change switches -w option passed to the executable with more
modern "use warnings;" approach. There is no functional change to the
default behavior.

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-10 10:19:24 +03:00
Kamil Rytarowski 6f75023ab8 scripts/qemu-binfmt-conf.sh: Fix shell portability issue
Appease pkgsrc and use portable shell variable comparison.
This switches "==" to "=". It should not be a functional change.

Signed-off-by: Kamil Rytarowski <n54@gmx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-10 10:19:23 +03:00
Stefan Hajnoczi 76d20ea0f1 QAPI patches for 2017-05-04
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Merge remote-tracking branch 'armbru/tags/pull-qapi-2017-05-04-v3' into staging

QAPI patches for 2017-05-04

# gpg: Signature made Tue 09 May 2017 03:16:12 AM EDT
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* armbru/tags/pull-qapi-2017-05-04-v3: (28 commits)
  qmp-shell: improve help
  qmp-shell: don't show version greeting if unavailable
  qmp-shell: Cope with query-commands error
  qmp-shell: add -N option to skip negotiate
  qmp-shell: add persistent command history
  qobject-input-visitor: Catch misuse of end_struct vs. end_list
  qapi: Document intended use of @name within alternate visits
  qobject-input-visitor: Document full_name_nth()
  qmp: Improve QMP dispatch error messages
  sockets: Delete unused helper socket_address_crumple()
  sockets: Limit SocketAddressLegacy to external interfaces
  sockets: Rename SocketAddressFlat to SocketAddress
  sockets: Rename SocketAddress to SocketAddressLegacy
  qapi: New QAPI_CLONE_MEMBERS()
  sockets: Prepare inet_parse() for flattened SocketAddress
  sockets: Prepare vsock_parse() for flattened SocketAddress
  test-qga: Actually test 0xff sync bytes
  fdc-test: Avoid deprecated 'change' command
  QemuOpts: Simplify qemu_opts_to_qdict()
  block: Simplify bdrv_append_temp_snapshot() logic
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-09 15:49:14 -04:00
Marc-André Lureau dcd3b25d65 qmp-shell: improve help
Describe the arguments & fix the tool name.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170504125432.21653-5-marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:41 +02:00
Marc-André Lureau b13d2ff3de qmp-shell: don't show version greeting if unavailable
qemu-ga doesn't have greeting.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170504125432.21653-4-marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:41 +02:00
Marc-André Lureau daa5a72eba qmp-shell: Cope with query-commands error
qemu-ga doesn't implement it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170504125432.21653-3-marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:41 +02:00
Marc-André Lureau c5e397df9e qmp-shell: add -N option to skip negotiate
qemu-ga doesn't have negotiate phase.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20170504125432.21653-2-marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:41 +02:00
John Snow aa3b167f21 qmp-shell: add persistent command history
Use the existing readline history function we are utilizing
to provide persistent command history across instances of qmp-shell.

This assists entering debug commands across sessions that may be
interrupted by QEMU sessions terminating, where the qmp-shell has
to be relaunched.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20170427223628.20893-1-jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com>
Tested-by: Kashyap Chamarthy <kchamart@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-09 09:14:40 +02:00
Eric Blake a92c21591b qobject: Add helper macros for common scalar insertions
Rather than making lots of callers wrap a scalar in a QInt, QString,
or QBool, provide helper macros that do the wrapping automatically.

Update the Coccinelle script to make mass conversions easy, although
the conversion itself will be done as a separate patches to ease
review and backport efforts.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-6-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-08 20:32:14 +02:00
Eric Blake a2f3453ebc coccinelle: Add script to remove useless QObject casts
We have macros in place to make it less verbose to add a subtype
of QObject to both QDict and QList. While we have made cleanups
like this in the past (see commit fcfcd8ffc, for example), having
it be automated by Coccinelle makes it easier to maintain.

The script is separate from the cleanups, for ease of review and
backporting.  A later patch will then add further possible cleanups.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20170427215821.19397-4-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-08 20:32:14 +02:00
Stefan Hajnoczi 1c5d506101 A large set of small patches. I have not included yet vhost-user-scsi,
but it'll come in the next pull request.
 
 * use GDB XML register description for x86
 * use _Static_assert in QEMU_BUILD_BUG_ON
 * add "R:" to MAINTAINERS and get_maintainers
 * checkpatch improvements
 * dump threading fixes
 * first part of vhost-user-scsi support
 * QemuMutex tracing
 * vmw_pvscsi and megasas fixes
 * sgabios module update
 * use Rev3 (ACPI 2.0) FADT
 * deprecate -hdachs
 * improve -accel documentation
 * hax fix
 * qemu-char GSource bugfix
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Merge remote-tracking branch 'bonzini/tags/for-upstream' into staging

A large set of small patches.  I have not included yet vhost-user-scsi,
but it'll come in the next pull request.

* use GDB XML register description for x86
* use _Static_assert in QEMU_BUILD_BUG_ON
* add "R:" to MAINTAINERS and get_maintainers
* checkpatch improvements
* dump threading fixes
* first part of vhost-user-scsi support
* QemuMutex tracing
* vmw_pvscsi and megasas fixes
* sgabios module update
* use Rev3 (ACPI 2.0) FADT
* deprecate -hdachs
* improve -accel documentation
* hax fix
* qemu-char GSource bugfix

# gpg: Signature made Fri 05 May 2017 06:10:40 AM EDT
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* bonzini/tags/for-upstream: (21 commits)
  vhost-scsi: create a vhost-scsi-common abstraction
  libvhost-user: replace vasprintf() to fix build
  get_maintainer: add subsystem to reviewer output
  get_maintainer: --r (list reviewer) is on by default
  get_maintainer: it's '--pattern-depth', not '-pattern-depth'
  get_maintainer: Teach get_maintainer.pl about the new "R:" tag
  MAINTAINERS: Add "R:" tag for self-appointed reviewers
  Fix the -accel parameter and the documentation for 'hax'
  dump: Acquire BQL around vm_start() in dump thread
  hax: Fix memory mapping de-duplication logic
  checkpatch: Disallow glib asserts in main code
  trace: add qemu mutex lock and unlock trace events
  vmw_pvscsi: check message ring page count at initialisation
  sgabios: update for "fix wrong video attrs for int 10h,ah==13h"
  scsi: avoid an off-by-one error in megasas_mmio_write
  vl: deprecate the "-hdachs" option
  use _Static_assert in QEMU_BUILD_BUG_ON
  target/i386: Add GDB XML register description support
  char: Fix removing wrong GSource that be found by fd_in_tag
  hw/i386: Build-time assertion on pc/q35 reset register being identical.
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-08 13:29:40 -04:00
Daniel P. Berrange f3fddaf60b trace: disallow more than 10 arguments per trace event
The UST trace backend can only cope with upto 10 arguments. To ensure we
don't exceed the limit when UST is not compiled in, disallow more than
10 arguments upfront.

This prevents the case where:

  commit 0fc8aec7de
  Author: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
  Date:   Tue Apr 18 10:20:20 2017 +0800

    COLO-compare: Optimize tcp compare trace event

    Optimize two trace events as one, adjust print format make
    it easy to read. rename trace_colo_compare_pkt_info_src/dst
    to trace_colo_compare_tcp_info.

regressed the fix done in

  commit 2dfe5113b1
  Author: Alex Bennée <alex.bennee@linaro.org>
  Date:   Fri Oct 28 14:25:59 2016 +0100

    net: split colo_compare_pkt_info into two trace events

    It seems there is a limit to the number of arguments a UST trace event
    can take and at 11 the previous trace command broke the build. Split the
    trace into a src pkt and dst pkt trace to fix this.

    Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
    Message-id: 20161028132559.8324-1-alex.bennee@linaro.org
    Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
    Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Now we get an immediate fail even when UST is disabled:

  GEN     net/trace.h
Traceback (most recent call last):
  File "/home/berrange/src/virt/qemu/scripts/tracetool.py", line 154, in <module>
    main(sys.argv)
  File "/home/berrange/src/virt/qemu/scripts/tracetool.py", line 145, in main
    events.extend(tracetool.read_events(fh))
  File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 307, in read_events
    event = Event.build(line)
  File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 244, in build
    event = Event(name, props, fmt, args)
  File "/home/berrange/src/virt/qemu/scripts/tracetool/__init__.py", line 196, in __init__
    "argument count" % name)
ValueError: Event 'colo_compare_tcp_info' has more than maximum permitted argument count
Makefile:96: recipe for target 'net/trace.h-timestamp' failed

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20170426153900.21066-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-08 09:38:30 -04:00
Joe Perches 622e42a71f get_maintainer: add subsystem to reviewer output
Reviewer output currently does not include the subsystem
that matched.  Add it.

Miscellanea:

o Add a get_subsystem_name routine to centralize this

Cherry picked from Linux commit 2a7cb1dc82fc2a52e747b4c496c13f6575fb1790.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:10:00 +02:00
Brian Norris 9ff3a5e677 get_maintainer: --r (list reviewer) is on by default
We don't consistenly document the default value next to the option
listing, but we do have a list of defaults here, so let's keep it up to
date.

Cherry picked from Linux commit 4f07510df2e8c47fd65b8ffaaf6c5d334d59d598.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:10:00 +02:00
Brian Norris 7a6ae2cffc get_maintainer: it's '--pattern-depth', not '-pattern-depth'
Though it appears that Perl's GetOptions will take either, the latter is
not documented in the options listing.

Cherry picked from Linux commit cc7ff0ef6eca3deeea4a424ca47a67c8450d5424.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:10:00 +02:00
Joe Perches 6668a2af21 get_maintainer: Teach get_maintainer.pl about the new "R:" tag
We can now designate reviewers in the MAINTAINERS file with the new
"R:" tag, so this commit teaches get_maintainers.pl to add their
email addresses.

Cherry picked from Linux commit c1c3f2c906e35bcb6e4cdf5b8e077660fead14fe,
with fixes to avoid \C as in QEMU commit ba10f729f1 ("get_maintainer.pl:
\C is deprecated", 2015-09-25).

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:10:00 +02:00
Dr. David Alan Gilbert 6e9389563e checkpatch: Disallow glib asserts in main code
Glib commit a6a875068779 (from 2013) made many of the glib assert
macros non-fatal if a flag is set.
This causes two problems:
  a) Compilers moan that your code is unsafe even though you've
     put an assert in before the point of use.
  b) Someone evil could, in a library, call
     g_test_set_nonfatal_assertions() and cause our assertions in
     important places not to fail and potentially allow memory overruns.

Ban most of the glib assertion functions (basically everything except
g_assert and g_assert_not_reached) except in tests/

This makes checkpatch gives an error such as:

  ERROR: Use g_assert or g_assert_not_reached
  #77: FILE: vl.c:4725:
  +    g_assert_cmpstr("Chocolate", >, "Cheese");

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20170427165526.19836-1-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-05-05 12:09:59 +02:00
Stefan Hajnoczi 659370f71f simpletrace: document Analyzer method signatures
Users can inherit from the simpletrace.Analyzer class and receive
callbacks when events of interest occur in a trace file.  The method
signature is a little magic because the timestamp and pid arguments are
optional.  Document this.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20170411095654.18383-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-04-21 10:45:35 +01:00
Alex Bennée 8037fa55ac scripts/qemugdb/mtree.py: fix up mtree dump
Since QEMU has been able to build with native Int128 support this was
broken as it attempts to fish values out of the non-existent
structure. Also the alias print was trying to make a %x out of
gdb.ValueType directly which didn't seem to work.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2017-04-07 15:24:56 +01:00
Stefan Hajnoczi 7609ffb919 trace: fix tcg tracing build breakage
Commit 0ab8ed18a6 ("trace: switch to
modular code generation for sub-directories") forgot to convert "tcg"
trace events to the modular code generation approach where each
sub-directory has its own trace-events file.

This patch fixes compilation for "tcg" trace events.  Currently they are
only used in the root ./trace-events file.

"tcg" trace events can only be used in the root ./trace-events file for
the time being.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170327131718.18268-1-stefanha@redhat.com
Suggested-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-03-28 11:07:46 +01:00
Markus Armbruster c32617a194 qapi2texi: Fix translation of *strong* and _emphasized_
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1490015515-25851-7-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-03-21 10:42:58 +01:00
Markus Armbruster 32b8a2ad61 qapi: Drop unused QAPIDoc member optional
Unused since commit aa964b7 "qapi2texi: Convert to QAPISchemaVisitor"

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1490015515-25851-4-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-03-21 10:42:49 +01:00
Markus Armbruster e8ba07ea9a qapi2texi: Fix to actually fail when 'doc-required' is false
Messed up in commit bc52d03.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1490015515-25851-3-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-03-21 10:42:27 +01:00
Markus Armbruster 012b126de2 qapi: Fix a misleading parser error message
When choking on a token where an expression is expected, we report
'Expected "{", "[" or string'.  Close, but no cigar.  Fix it to
Expected '"{", "[", string, boolean or "null"'.

Missed in commit e53188a.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-48-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00
Markus Armbruster c261394978 qapi: Make pylint a bit happier
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-47-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00
Markus Armbruster 6bbfb12de6 qapi: Drop unused .check_clash() parameter schema
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-46-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00
Markus Armbruster 768562ded0 qapi: union_types is a list used like a dict, make it one
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-45-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00
Markus Armbruster ed285bf821 qapi: struct_types is a list used like a dict, make it one
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-44-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00
Markus Armbruster 5f018446fe qapi: enum_types is a list used like a dict, make it one
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1489582656-31133-43-git-send-email-armbru@redhat.com>
2017-03-16 07:13:04 +01:00