Commit Graph

1884 Commits

Author SHA1 Message Date
Marc-André Lureau
45ce512670 vhost-user-test: fix crash with glib < 2.36
The prepare callback needs to be implemented with glib < 2.36,
quoting glib documentation:
"Since 2.36 this may be NULL, in which case the effect is as if the
function always returns FALSE with a timeout of -1."

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-02 16:42:26 +02:00
Marc-André Lureau
a899b1ea2a vhost-user-test: use unix port for migration
TCP port 1234 may be used by another process concurrently. Instead use a
temporary unix socket.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-02 16:42:26 +02:00
Marc-André Lureau
9732baf678 vhost-user-test: fix chardriver race
vhost-user-tests uses a helper thread to dispatch the vhost-user servers
sources. However the CharDriverState is not thread-safe. Therefore, when
it's given to the thread, it shouldn't be manipulated concurrently.

We dispatch cleaning the server in an idle source. By the end of the
test, we ensure not to leave anything behind by joining the thread and
finishing the sources dispatch.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-12-02 16:42:26 +02:00
Peter Maydell
72f75c76d8 vhost, pc: fixes for 2.5
Minor vhost fixes.  HW version tweak for PC.
 Documentation and test updates.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

vhost, pc: fixes for 2.5

Minor vhost fixes.  HW version tweak for PC.
Documentation and test updates.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 26 Nov 2015 16:40:25 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  vhost-user-test: fix migration overlap test
  Fix memory leak on error
  Revert "vhost: send SET_VRING_ENABLE at start/stop"
  tests/vhost-user-bridge: read command line arguments
  tests/vhost-user-bridge: propose GUEST_ANNOUNCE feature
  vhost-user: clarify start and enable
  vhost-user: set link down when the char device is closed
  pc: Don't set hw_version on pc-*-2.5
  osdep: Change default value of qemu_hw_version() to "2.5+"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 16:50:59 +00:00
Michael S. Tsirkin
d08e42a112 vhost-user-test: fix migration overlap test
During migration, source does GET_BASE, destination does SET_BASE.
Use that as opposed to fds being configured to detect
vhost user running on both source and destination.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-26 18:39:34 +02:00
Peter Maydell
a5df35070a QMP and QObject patches
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Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2015-11-26' into staging

QMP and QObject patches

# gpg: Signature made Thu 26 Nov 2015 09:07:18 GMT using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-monitor-2015-11-26:
  qjson: Limit number of tokens in addition to total size
  qjson: surprise, allocating 6 QObjects per token is expensive
  qjson: store tokens in a GQueue
  qjson: Convert to parser to recursive descent
  qjson: replace QString in JSONLexer with GString
  qjson: Inline token_is_escape() and simplify
  qjson: Inline token_is_keyword() and simplify
  qjson: Give each of the six structural chars its own token type
  qjson: Spell out some silent assumptions
  check-qjson: Add test for JSON nesting depth limit
  qjson: Don't crash when input exceeds nesting limit
  qjson: Apply nesting limit more sanely
  monitor: Plug memory leak on QMP error

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 16:27:26 +00:00
Peter Maydell
b8b0ee0ea3 qemu-ga patch queue for 2.5
* include additional w32 MSI install components needed for
   guest-exec
 * fix 'make install' when compiling with --disable-tools
 * fix potential data corruption/loss when accessing files
   bi-directionally via guest-file-{read,write}
 * explicitly document how integer args for guest-file-seek map to
   SEEK_SET/SEEK_CUR/etc to avoid platform-specific differences
 
 v2:
 * fixed missing SoB
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Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2015-11-25-v2-tag' into staging

qemu-ga patch queue for 2.5

* include additional w32 MSI install components needed for
  guest-exec
* fix 'make install' when compiling with --disable-tools
* fix potential data corruption/loss when accessing files
  bi-directionally via guest-file-{read,write}
* explicitly document how integer args for guest-file-seek map to
  SEEK_SET/SEEK_CUR/etc to avoid platform-specific differences

v2:
* fixed missing SoB

# gpg: Signature made Wed 25 Nov 2015 23:58:45 GMT using RSA key ID F108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>"
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>"

* remotes/mdroth/tags/qga-pull-2015-11-25-v2-tag:
  qga: added another non-interactive gspawn() helper file.
  qga: Better mapping of SEEK_* in guest-file-seek
  tests: add file-write-read test
  qga: flush explicitly when needed
  qga: gspawn() console helper to Windows guest agent msi build
  makefile: fix qemu-ga make install for --disable-tools

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 10:24:18 +00:00
Peter Maydell
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Wed 25 Nov 2015 20:25:21 GMT using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  ide-test: fix timeouts
  atapi: Fix code indentation
  atapi: Account for failed and invalid operations in cd_read_sector()
  ide-test: cdrom_pio_impl fixup

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 09:44:25 +00:00
Paolo Bonzini
95385fe9ac qjson: store tokens in a GQueue
Even though we still have the "streamer" concept, the tokens can now
be deleted as they are read.  While doing so convert from QList to
GQueue, since the next step will make tokens not a QObject and we
will have to do the conversion anyway.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448300659-23559-4-git-send-email-pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 10:07:07 +01:00
Markus Armbruster
f0ae0304c7 check-qjson: Add test for JSON nesting depth limit
This would have prevented the regression mentioned in the previous
commit.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-4-git-send-email-armbru@redhat.com>
2015-11-26 09:18:38 +01:00
Eric Blake
0a982b1bf3 qga: Better mapping of SEEK_* in guest-file-seek
Exposing OS-specific SEEK_ constants in our qapi was a mistake
(if the host has SEEK_CUR as 1, but the guest has it as 2, then
the semantics are unclear what should happen); if we had a time
machine, we would instead expose only a symbolic enum.  It's too
late to change the fact that we have an integer in qapi, but we
can at least document what mapping we want to enforce for all
qga clients (and luckily, it happens to be the mapping that both
Linux and Windows use); then fix the code to match that mapping.
It also helps us filter out unsupported SEEK_DATA and SEEK_HOLE.

In the future, we may wish to move our QGA_SEEK_* constants into
qga/qapi-schema.json, along with updating the schema to take an
alternate type (either the integer, or the string value of the
enum name) - but that's too much risk during hard freeze.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:45 -06:00
Marc-André Lureau
4eaab85cb1 tests: add file-write-read test
This test exhibits a POSIX behaviour regarding switching between write
and read. It's undefined result if the application doesn't ensure a
flush between the two operations (with glibc, the flush can be implicit
when the buffer size is relatively small). The previous commit fixes
this test.

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1210246

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:45 -06:00
John Snow
9c73517ca5 ide-test: fix timeouts
Use explicit timeouts instead of trying to approximate it by counting
the cumulative duration of nsleep calls.

In practice, the timeout if inb() dwarfed the nsleep delays, and as a
result the real timeout value became a lot larger than 5 seconds.

So: change the semantics from "Not sooner than 5 seconds" to "no more
than 5 seconds" to ensure we don't hang the tester for very long.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1448393771-15483-2-git-send-email-jsnow@redhat.com
2015-11-25 11:37:34 -05:00
Fam Zheng
4d7f853ff0 qemu-iotests: Add -nographic when starting QEMU in 119 and 120
Otherwise, a window flashes on my desktop (built with SDL). Add this as
other cases have it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1448245930-15031-1-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-11-25 14:29:39 +01:00
Kevin Wolf
7595ed7439 test-aio: Fix event notifier cleanup
One test case closed an event notifier (event_notifier_cleanup())
without first disabling it (set_event_notifier(..., NULL)). This
resulted in a leftover handle 0 that was added to each subsequent
WaitForMultipleObjects() call, causing the function to fail (invalid
handle).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-11-25 14:27:43 +01:00
Kevin Wolf
5e41fbffa1 tests/Makefile: Add more dependencies for test-timed-average
'make check' failed to compile the test case for mingw because of
undefined references. Pull in a few more dependencies so that it builds.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-11-25 14:27:43 +01:00
Victor Kaplansky
7cf32491ea tests/vhost-user-bridge: read command line arguments
Now some vhost-user-bridge parameters can be passed from the
command line:

Usage: prog [-u ud_socket_path] [-l lhost:lport] [-r rhost:rport]
        -u path to unix doman socket. default: /tmp/vubr.sock
        -l local host and port. default: 127.0.0.1:4444
        -r remote host and port. default: 127.0.0.1:5555

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-25 13:42:38 +02:00
Victor Kaplansky
85ea9da5b8 tests/vhost-user-bridge: propose GUEST_ANNOUNCE feature
The backend has to know whether VIRTIO_NET_F_GUEST_ANNOUNCE was
negotiated, so, as a hack we propose the feature by
vhost-user-bridge during the feature negotiation.

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-25 13:42:38 +02:00
Markus Armbruster
1d649244b3 ivshmem: Rename property memdev to x-memdev for 2.5
The device's guest interface and its QEMU user interface are
flawed^Whotly debated.  We'll resolve that in the next development
cycle, probably by deprecating the device in favour of a cleaned up,
but not quite compatible revision.

To avoid adding more baggage to the soon-to-be-deprecated interface,
mark property "memdev" as experimental, by renaming it to "x-memdev".
It's the only recent user interface change.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448384789-14830-6-git-send-email-armbru@redhat.com>
[Update of qemu-doc.texi squashed in]
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-11-25 10:24:27 +01:00
Markus Armbruster
1613094766 tests/ivshmem-test: Supply missing initializer in get_device()
If the device isn't found, the assertion uses dev without
initialization.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448384789-14830-4-git-send-email-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-11-25 10:24:04 +01:00
John Snow
a421f3c385 ide-test: cdrom_pio_impl fixup
Final tidying: move the interrupt wait into the loop,
document that the status read clears the IRQ, and move
the final interrupt check outside of the loop.

This should be functionally equivalent to how it works
currently, but a little less ambiguous and slightly more
explicit about the state transitions.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1448060035-31973-3-git-send-email-jsnow@redhat.com
2015-11-24 14:51:43 -05:00
Peter Lieven
f348daf3d5 tests: fix cdrom_pio_impl in ide-test
The check for the cleared BSY flag has to be performed
before each data transfer and not just before the
first one.

Commit 5f81724d revealed this glitch as the BSY flag
was not set in ATAPI PIO transfers before.

While at it fix the descriptions and add a comment before
the nested for loop that transfers the data.

Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1448029742-19771-1-git-send-email-pl@kamp.de
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-20 17:37:06 +00:00
Peter Maydell
28c3e6ee72 QOM infrastructure fixes and device conversions
* Fix for properties on objects > 4 GiB
 * Performance improvements for QOM property handling
 * Assertion cleanups
 * MAINTAINERS additions
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging

QOM infrastructure fixes and device conversions

* Fix for properties on objects > 4 GiB
* Performance improvements for QOM property handling
* Assertion cleanups
* MAINTAINERS additions

# gpg: Signature made Thu 19 Nov 2015 14:32:16 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-devices-for-peter:
  MAINTAINERS: Add check-qom-{interface,proplist} to QOM
  qom: Clean up assertions to display values on failure
  qom: Replace object property list with GHashTable
  qom: Add a test case for complex property finalization
  net: Convert net filter code to use object property iterators
  ppc: Convert spapr code to use object property iterators
  vl: Convert machine help code to use object property iterators
  qmp: Convert QMP code to use object property iterators
  qom: Introduce ObjectPropertyIterator struct for iteration
  qdev: Change Property::offset field to ptrdiff_t type

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-19 17:54:46 +00:00
Peter Maydell
348c32709f vhost, pc: fixes for 2.5
Fixes all over the place.
 
 This also re-enables a test we disabled in 2.5 cycle
 now that there's a way not to get a warning from it.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

vhost, pc: fixes for 2.5

Fixes all over the place.

This also re-enables a test we disabled in 2.5 cycle
now that there's a way not to get a warning from it.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 19 Nov 2015 13:27:43 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  exec: silence hugetlbfs warning under qtest
  tests: re-enable vhost-user-test
  acpi: fix buffer overrun on migration
  vhost-user: fix log size
  vhost-user: ignore qemu-only features
  specs/vhost-user: fix spec to match reality
  tests/vhost-user-bridge: implement logging of dirty pages
  i440fx: print an error message if user tries to enable iommu
  q35: Check propery to determine if iommu is set
  vhost-user: start/stop all rings
  vhost-user: print original request on error
  vhost-user-test: support VHOST_USER_SET_VRING_ENABLE
  vhost-user: update spec description
  vhost: don't send RESET_OWNER at stop
  vhost: let SET_VRING_ENABLE message depends on protocol feature

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-19 16:26:08 +00:00
Marc-André Lureau
421f4448ce tests: re-enable vhost-user-test
Commit 7fe34ca9c2 actually disabled vhost-user-test altogether,
since CONFIG_VHOST_NET is a per-target config variable.

tests/vhost-user-test is already x86/x64 softmmu specific test, in order
to enable it correctly, kvm & vhost-net are also conditions. To check
that, set CONFIG_VHOST_NET_TEST_$target when kvm is also enabled.

Since "check-qtest-x86_64-y = $(check-qtest-i386-y)", avoid duplication
when both x86 & x64 are enabled.

Other targets than x86 aren't enabled yet, and is intentionally left as
a future improvement, since I can't easily test those.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-19 15:26:05 +02:00
Daniel P. Berrange
8c4d156c18 qom: Add a test case for complex property finalization
Devices have some quite complex object child/link relationships
which place some requirements on the object_property_del_all()
function to consider that properties can be modified while
being iterated over.

This extends the QOM property test case to replicate the
device like structure and expose any potential bugs in the
object_property_del_all() function.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-11-18 21:13:49 +01:00
Daniel P. Berrange
a00c948241 qom: Introduce ObjectPropertyIterator struct for iteration
Some users of QOM need to be able to iterate over properties
defined against an object instance. Currently they are just
directly using the QTAIL macros against the object properties
data structure.

This is bad because it exposes them to changes in the data
structure used to store properties, as well as changes in
functionality such as ability to register properties against
the class.

This provides an ObjectPropertyIterator struct which will
insulate the callers from the particular data structure
used to store properties. It can be used thus

  ObjectProperty *prop;
  ObjectPropertyIterator *iter;

  iter = object_property_iter_init(obj);
  while ((prop = object_property_iter_next(iter))) {
      ... do something with prop ...
  }
  object_property_iter_free(iter);

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Tested-by: Pavel Fedin <p.fedin@samsung.com>
[AF: Fixed examples, style cleanups]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-11-18 21:13:38 +01:00
Peter Maydell
8f28030903 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 18 Nov 2015 15:28:32 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  block: Call external_snapshot_clean after blockdev-snapshot
  blockdev: Add missing bdrv_unref() in drive-backup
  iotests: fix race in 030
  nand: fix address overflow

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-18 17:07:24 +00:00
Daniel P. Berrange
7b35030eed crypto: fix leaks in TLS x509 helper functions
The test_tls_get_ipaddr() method forgot to free the returned data
from getaddrinfo().

The test_tls_write_cert_chain() method forgot to free the allocated
buffer holding the certificate data after writing it out to a file.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-11-18 14:56:58 +00:00
John Snow
01809194a0 iotests: fix race in 030
the stop_test case tests that we can resume a block-stream
command after it has stopped/paused due to error. We cannot
always reliably query it before it finishes after resume, though,
so make this a conditional.

The important thing is that we are still testing that it has stopped,
and that it finishes successfully after we send a resume command.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-18 15:54:15 +01:00
Victor Kaplansky
5c93c47338 tests/vhost-user-bridge: implement logging of dirty pages
During migration devices continue writing to the guest's memory.
The writes has to be reported to QEMU. This change implements
minimal support in vhost-user-bridge required for successful
migration of a guest with virtio-net device.

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-17 15:41:13 +02:00
Alberto Garcia
40119effc5 block: make 'stats-interval' an array of ints instead of a string
This is the natural JSON representation and prevents us from having to
decode the list manually.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 0e3da8fa206f4ab534ae3ce6086e75fe84f1557e.1447665472.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-11-17 18:35:57 +08:00
Eric Blake
a12e52a151 tests: Ignore recent test binaries
Commits 6c6f312d and bd797fc1 added new tests (test-blockjob-txn
and test-timed-average, respectively), but did not mark them for
exclusion in .gitignore.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1447386423-13160-1-git-send-email-eblake@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-11-17 18:35:56 +08:00
Michael S. Tsirkin
87656d5018 vhost-user-test: support VHOST_USER_SET_VRING_ENABLE
vhost-user-test is broken now: it assumes
QEMU sends RESET_OWNER, and we stopped doing that.
Wait for ENABLE_RING with 0 instead.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-16 14:35:05 +02:00
John Snow
917158dc3b qtest/ahci: use raw format when qemu-img is absent
If we don't have the qemu-img tool, use the raw format
for tests and skip the high-sector LBA48 tests.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447439479-16775-4-git-send-email-jsnow@redhat.com
2015-11-13 14:31:43 -05:00
John Snow
cb11e7b2f3 libqos: add qemu-img presence check
To allow tests to optionally exercise additional tests
that require the qemu-img tool that may not be present
in all builds.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447439479-16775-3-git-send-email-jsnow@redhat.com
2015-11-13 14:31:42 -05:00
John Snow
b236b61056 qtest/ahci: always specify image format
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447439479-16775-2-git-send-email-jsnow@redhat.com
2015-11-13 14:31:42 -05:00
John Snow
6d9e7295c5 ahci/qtest: don't use tcp sockets for migration tests
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447108074-20609-1-git-send-email-jsnow@redhat.com
2015-11-13 14:31:42 -05:00
Peter Maydell
b2df6a79df Block layer patches (rebased Stefan's pull request)
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches (rebased Stefan's pull request)

# gpg: Signature made Thu 12 Nov 2015 15:34:16 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (43 commits)
  block: Update copyright of the accounting code
  scsi-disk: Account for failed operations
  macio: Account for failed operations
  ide: Account for failed and invalid operations
  atapi: Account for failed and invalid operations
  xen_disk: Account for failed and invalid operations
  virtio-blk: Account for failed and invalid operations
  nvme: Account for failed and invalid operations
  iotests: Add test for the block device statistics
  block: Use QEMU_CLOCK_VIRTUAL for the accounting code in qtest mode
  qemu-io: Account for failed, invalid and flush operations
  block: New option to define the intervals for collecting I/O statistics
  block: Add average I/O queue depth to BlockDeviceTimedStats
  block: Compute minimum, maximum and average I/O latencies
  block: Allow configuring whether to account failed and invalid ops
  block: Add statistics for failed and invalid I/O operations
  block: Add idle_time_ns to BlockDeviceStats
  util: Infrastructure for computing recent averages
  block: define 'clock_type' for the accounting code
  ide: Account for write operations correctly
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-12 17:22:06 +00:00
Alberto Garcia
4214face09 iotests: Add test for the block device statistics
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 0fb8501bbf3666b3d5d3f67fa899729c88f21baf.1446044838.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12 16:22:46 +01:00
Alberto Garcia
bd797fc15b util: Infrastructure for computing recent averages
This module computes the average of a set of values within a time
window, keeping also track of the minimum and maximum values.

In order to produce more accurate results it works internally by
creating two time windows of the same period, offsetted by half of
that period. Values are accounted on both windows and the data is
always returned from the oldest one.

[Add missing util/replay.o to test-timed-average dependencies to fix the
build.
--Stefan]

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 201b09c21bbc9c329779d2b2365ee2b9c80dceeb.1446044837.git.berto@igalia.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12 16:22:45 +01:00
Stefan Hajnoczi
6c6f312dd7 tests: add BlockJobTxn unit test
The BlockJobTxn unit test verifies that both single jobs and pairs of
jobs behave as a transaction group.  Either all jobs complete
successfully or the group is cancelled.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1446765200-3054-15-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12 16:22:44 +01:00
John Snow
fc6c796ff2 iotests: 124 - transactional failure test
Use a transaction to request an incremental backup across two drives.
Coerce one of the jobs to fail, and then re-run the transaction.

Verify that no bitmap data was lost due to the partial transaction
failure.

To support the 'err-cancel' QMP argument name it's necessary for
transaction_action() to convert underscores in Python argument names
to hyphens for QMP argument names.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1446765200-3054-14-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12 16:22:44 +01:00
John Snow
749ad5e887 iotests: add transactional incremental backup test
Test simple usage cases for using transactions to create
and synchronize incremental backups.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1446765200-3054-3-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-12 16:22:43 +01:00
Yuanhan Liu
60915dc469 vhost: rename RESET_DEVICE backto RESET_OWNER
This patch basically reverts commit d1f8b30e.

It turned out that it breaks stuff, so revert it:
    http://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg00949.html

CC: "Michael S. Tsirkin" <mst@redhat.com>
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-12 15:49:33 +02:00
Victor Kaplansky
2b8819c6ee vhost-user: modify SET_LOG_BASE to pass mmap size and offset
Unlike the kernel, vhost-user application accesses log table by
mmaping it to its user space. This change adds two new fields to
VhostUserMsg payload: mmap_size, and mmap_offset and make QEMU to
pass the to vhost-user application in VHOST_USER_SET_LOG_BASE
request.

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-12 15:49:33 +02:00
Marc-André Lureau
2048a2a491 tests: classify some ivshmem tests as slow
Some tests may take long to run, move them under g_test_slow()
condition.

The 5s timeout for the "server" test will have to be adjusted to the worst
known time (for the records, it takes ~0.2s on my host). The "pair"
test takes ~1.7, a quickest version could be implemented.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1447326618-11686-1-git-send-email-marcandre.lureau@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-12 11:57:58 +00:00
Alberto Garcia
92e6898774 iotests: Check for quorum support in test 139
The quorum driver is always built in, but it is disabled during
run-time if there's no SHA256 support available (see commit e94867e).

This patch skips the quorum test in iotest 139 in that case.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1447172891-20410-1-git-send-email-berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-11-11 16:59:44 +01:00
Alberto Garcia
342075fd0e iotests: Add tests for the x-blockdev-del command
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 57c3b0d4d0c73ddadd19e5bded9492c359cc4568.1446475331.git.berto@igalia.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-11-11 16:55:29 +01:00
Jeff Cody
e6c17669eb qemu-iotests: fix -valgrind option for check
Commit 934659c switched the iotests to run qemu-io from a bash subshell,
in order to catch segfaults.  This method is incompatible with the
current valgrind_qemu_io() bash function.

Move the valgrind usage into the exec subshell in _qemu_io_wrapper(),
while making sure the original return value is passed back to the
caller.

Update test output for tests 039, 061, and 137 as it looks for the
specific subshell command when the process is terminated.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Message-id: 0066fd85d26ca641a1c25135ff2479b7985701cf.1446232490.git.jcody@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-11-11 16:55:28 +01:00
Jeff Cody
f6c8c2e055 qemu-iotests: fix cleanup of background processes
Commit 934659c switched the iotests to run qemu and qemu-nbd from a bash
subshell, in order to catch segfaults.  Unfortunately, this means the
process PID cannot be captured via '$!'. We stopped killing qemu and
qemu-nbd processes, leaving a lot of orphaned, running qemu processes
after executing iotests.

Since the process is using exec in the subshell, the PID is the
same as the subshell PID.

Track these PIDs for cleanup using pidfiles in the $TEST_DIR. Only
track the qemu PID, however, if requested - not all usage requires
killing the process.

Reported-by: John Snow <jsnow@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Message-id: 9e4f958b3895b7259b98d845bb46f000ba362869.1446232490.git.jcody@redhat.com
[mreitz@redhat.com: Replaced '! -z "..."' by '-n "..."']
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-11-11 16:55:28 +01:00
Alberto Garcia
3fa123d059 block: test 'blockdev-snapshot' using a file BDS as the overlay
This test checks that it is not possible to create a snapshot if the
requested overlay node is a BDS which does not support backing images.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:48 +01:00
Alberto Garcia
f2d7f16f94 block: Remove inner quotation marks in iotest 085
This patch removes the inner quotation marks in all cases like this:

   cmd=" ... "${variable}" ... "

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:48 +01:00
Alberto Garcia
bcdce5a73c qemu-iotests: Test the reopening of overlay_bs in 'block-commit'
The 'block-commit' command needs the overlay image of 'top' to
be opened in read-write mode in order to update the backing file
string. If 'top' is not the active layer or its backing file then its
overlay needs to be reopened during the block job.

This is a test case for that scenario.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:47 +01:00
Alberto Garcia
89e3a2d86d block: add tests for the 'blockdev-snapshot' command
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:47 +01:00
Max Reitz
adfe20303f iotests: Add test for change-related QMP commands
Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:47 +01:00
Eric Blake
2533377c7b qapi: More tests of input arrays
Our testsuite had no coverage of empty arrays, nor of what
happens when the input does not match the expected type.
Useful to have, especially if we start changing the visitor
contracts.

I did not think it worth duplicating these additions to
test-qmp-input-strict; since all strict mode does is add
the ability to reject JSON input that has more keys than
what the visitor expects, yet the additions in this patch
error out earlier than that point regardless of whether
strict mode was requested.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-11-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-10 08:09:14 +01:00
Eric Blake
dd5ee2c2d3 qapi: Test failure in middle of array parse
Our generated list visitors have the same problem as has been
mentioned elsewhere (see commit 2f52e20): they allocate data
even on failure. An upcoming patch will correct things to
provide saner guarantees, but first we need to expose the
behavior in the testsuite to ensure we aren't introducing any
memory usage bugs.

There are more test cases throughout the test-qmp-input-* tests
that already deal with partial allocation; a later commit will
clean up all visit_type_FOO(), without marking all of the tests
with FIXME at this time.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-10-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-10 08:09:14 +01:00
Eric Blake
12fafd7ced qapi: More tests of alternate output
The testsuite was only covering that we could output the 'int'
branch of an alternate (no additional allocation/cleanup required).
Add a test of the 'str' branch, to make sure that things still
work even when a branch involves allocation.

Update to modern style of g_new0() over g_malloc0() while
touching it.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-9-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-10 08:09:14 +01:00
Eric Blake
a12a5a1a01 qapi: Simplify error cleanup in test-qmp-*
We have several tests that perform multiple sub-actions that are
expected to fail.  Asserting that an error occurred, then clearing
it up to prepare for the next action, turned into enough
boilerplate that it was sometimes forgotten (for example, a number
of tests added to test-qmp-input-visitor.c in d88f5fd leaked err).
Worse, if an error is not reset to NULL, we risk invalidating
later use of that error (passing a non-NULL err into a function
is generally a bad idea).  Encapsulate the boilerplate into a
single helper function error_free_or_abort(), and consistently
use it.

The new function is added into error.c for use everywhere,
although it is anticipated that testsuites will be the main
client.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-10 08:08:21 +01:00
Eric Blake
3f66f764ee qapi: Simplify non-error testing in test-qmp-*
By using &error_abort, we can avoid a local err variable in
situations where we expect success.  It also has the nice
effect that if the test breaks, the error message from
error_abort tends to be nicer than that of g_assert().

This patch has an additional bonus of fixing several call sites that
were passing &err to two different functions without checking it in
between.  In general that is unsafe practice; because if the first
function sets an error, the second function could abort() if it tries to
set a different error. We got away with it because we were asserting
that err was NULL through the entire chain, but switching to
&error_abort avoids the questionable practice up front.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-7-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-09 16:45:05 +01:00
Eric Blake
b18f1141d0 qapi: Plug leaks in test-qmp-*
Make valgrind happy with the current state of the tests, so that
it is easier to see if future patches introduce new memory problems
without being drowned in noise.  Many of the leaks were due to
calling a second init without tearing down the data from an earlier
visit.  But since teardown is already idempotent, and we already
register teardown as part of input_visitor_test_add(), it is nicer
to just make init() safe to call multiple times than it is to have
to make all tests call teardown.

Another common leak was forgetting to clean up an error object,
after testing that an error was raised.

Another leak was in test_visitor_in_struct_nested(), failing to
clean the base member of UserDefTwo.  Cleaning that up left
check_and_free_str() as dead code (since using the qapi_free_*
takes care of recursion, and we don't want double frees).

A final leak was in test_visitor_out_any(), which was reassigning
the qobj local variable to a subset of the overall structure
needing freeing; it did not result in a use-after-free, but
was not cleaning up all the qdict.

test-qmp-event and test-qmp-commands were already clean.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-6-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-09 16:45:05 +01:00
Eric Blake
0920a17199 qapi: Share test_init code in test-qmp-input*
Rather than duplicate the body of two functions just to
decide between qobject_from_jsonv() and qobject_from_json(),
exploit the fact that qobject_from_jsonv() intentionally
takes 'va_list *' instead of the more common 'va_list', and
that qobject_from_json() just calls qobject_from_jsonv(,NULL).
For each file, our two existing init functions then become
thin wrappers around a new internal function, and future
updates to initialization don't have to be duplicated.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-5-git-send-email-eblake@redhat.com>
[Two old comment typos fixed]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-09 16:45:05 +01:00
Eric Blake
bd20588d19 qapi: Strengthen test of TestStructList
Make each list element different, to ensure that order is
preserved, and use the generated free function instead of
hand-rolling our own to ensure (under valgrind) that the
list is properly cleaned.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-09 16:45:05 +01:00
Eric Blake
748053c97b qapi: Use generated TestStruct machinery in tests
Commit d88f5fd and friends first introduced the various test-qmp-*
tests in 2011, with duplicated hand-rolled TestStruct machinery,
to make sure the qapi visitor interface was tested.  Later, commit
4f193e3 in 2013 added a .json file for further testing use by the
files, but without consolidating any of the existing hand-rolled
visitors.  And with four copies, subtle differences have crept in,
between the tests themselves (mainly whitespace differences, but
also a question of whether to use NULL or "TestStruct" when
calling visit_start_struct()) and from what the generator produces
(the hand-rolled versions did not cater to partially-allocated
objects, because they did not have a deallocation usage).

Of course, just because the visitor interface is tested does not
mean it is a sane interface; and future patches will be changing
some of the visitor contracts.  Rather than having to duplicate
the cleanup work in each copy of the TestStruct visitor, and keep
each hand-rolled copy in sync with what the generator supplies, we
might as well just test what the generator should give us in the
first place.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1446791754-23823-2-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-09 16:45:05 +01:00
Thomas Huth
112317867d tests/i44fx-test: No need for zeroing memory before memset
Change a g_malloc0 into g_malloc since the following
memset fills the whole buffer anyway.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-11-06 15:42:38 +03:00
Eric Blake
3cd01b6ed8 tests: ignore test-qga
Commit 62c39b30 added a new test, but did not mark it for
exclusion in .gitignore.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-11-06 15:42:38 +03:00
Eric Blake
5e59baf90a qapi: Reserve 'u' member name
Now that we have separated union tag values from colliding with
non-variant C names, by naming the union 'u', we should reserve
this name for our use.  Note that we want to forbid 'u' even in
a struct with no variants, because it is possible for a future
qemu release to extend QMP in a backwards-compatible manner while
converting from a struct to a flat union.  Fortunately, no
existing clients were using this member name.  If we ever find
the need for QMP to have a member 'u', we could at that time
relax things, perhaps by having c_name() munge the QMP member to
'q_u'.

Note that we cannot forbid 'u' everywhere (by adding the
rejection code to check_name()), because the existing QKeyCode
enum already uses it; therefore we only reserve it as a struct
type member name.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-24-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:28 +01:00
Eric Blake
c363acef77 tests: Convert to new qapi union layout
We have two issues with our qapi union layout:
1) Even though the QMP wire format spells the tag 'type', the
C code spells it 'kind', requiring some hacks in the generator.
2) The C struct uses an anonymous union, which places all tag
values in the same namespace as all non-variant members. This
leads to spurious collisions if a tag value matches a non-variant
member's name.

Make the conversion to the new layout for testsuite code.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-15-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:27 +01:00
Eric Blake
ddf2190896 qapi: Unbox base members
Rather than storing a base class as a pointer to a box, just
store the fields of that base class in the same order, so that
a child struct can be directly cast to its parent.  This gives
less malloc overhead, less pointer dereferencing, and even less
generated code.  Compare to the earlier commit 1e6c1616a "qapi:
Generate a nicer struct for flat unions" (although that patch
had fewer places to change, as less of qemu was directly using
qapi structs for flat unions).  It also allows us to turn on
automatic type-safe wrappers for upcasting to the base class
of a struct.

Changes to the generated code look like this in qapi-types.h:

| struct SpiceChannel {
|-    SpiceBasicInfo *base;
|+    /* Members inherited from SpiceBasicInfo: */
|+    char *host;
|+    char *port;
|+    NetworkAddressFamily family;
|+    /* Own members: */
|     int64_t connection_id;

as well as additional upcast functions like qapi_SpiceChannel_base().
Meanwhile, changes to qapi-visit.c look like:

| static void visit_type_SpiceChannel_fields(Visitor *v, SpiceChannel **obj, Error **errp)
| {
|     Error *err = NULL;
|
|-    visit_type_implicit_SpiceBasicInfo(v, &(*obj)->base, &err);
|+    visit_type_SpiceBasicInfo_fields(v, (SpiceBasicInfo **)obj, &err);
|     if (err) {

(the cast is necessary, since our upcast wrappers only deal with a
single pointer, not pointer-to-pointer); plus the wholesale
elimination of some now-unused visit_type_implicit_FOO() functions.

Without boxing, the corner case of one empty struct having
another empty struct as its base type now requires inserting a
dummy member (previously, the 'Base *base' member sufficed).

And now that we no longer consume a 'base' member in the generated
C struct, we can delete the former negative struct-base-clash-base
test.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-11-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:26 +01:00
Eric Blake
30594fe1cd qapi: Prefer typesafe upcasts to qapi base classes
A previous patch (commit 1e6c1616) made it possible to
directly cast from a qapi flat union type to its base type.
However, it requires the use of a C cast, which turns off
compiler type-safety checks.  Fortunately, no such casts
exist, just yet.

Regardless, add inline type-safe wrappers named
qapi_FOO_base() for any union type FOO that has a base,
which can be used for a safer upcast, and enhance the
testsuite to cover the new functionality.

A future patch will extend the upcast support to structs,
where such conversions do exist already.

Note that C makes const-correct upcasts annoying because
it lacks overloads; these functions cast away const so that
they can accept user pointers whether const or not, and the
result in turn can be assigned to normal or const pointers.
Alternatively, this could have been done with macros, but
type-safe macros are hairy, and not worthwhile here.

This patch just adds upcasts.  None of our code needed to
downcast from a base qapi class to a child.  Also, in the
case of grandchildren (such as BlockdevOptionsQcow2), the
caller will need to call two functions to get to the inner
base (although it wouldn't be too hard to generate a
qapi_FOO_base_base() if desired).  If a user changes qapi
to alter the base class hierarchy, such as going from
'A -> C' to 'A -> B -> C', it will change the type of
'qapi_C_base()', and the compiler will point out the places
that are affected by the new base.

One alternative was proposed, but was deemed too ugly to use
in practice: the generators could output redundant
information using anonymous types:
| struct Child {
|     union {
|         struct {
|             Type1 parent_member1;
|             Type2 parent_member2;
|         };
|         Parent base;
|     };
| };
With that ugly proposal, for a given qapi type, obj->member
and obj->base.member would refer to the same storage; allowing
convenience in working with members without needing 'base.'
allowing typesafe upcast without needing a C cast by accessing
'&obj->base', and allowing downcasts from the parent back to
the child possible through container_of(obj, Child, base).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-10-git-send-email-eblake@redhat.com>
[Commit message tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:26 +01:00
Eric Blake
9fb081e0b9 qapi: Reserve 'q_*' and 'has_*' member names
c_name() produces names starting with 'q_' when protecting a
dictionary member name that would fail to directly compile, but
in doing so can cause clashes with any member name already
beginning with 'q-' or 'q_'.  Likewise, we create a C name 'has_'
for any optional member that can clash with any member name
beginning with 'has-' or 'has_'.

Technically, rather than blindly reserving the namespace,
we could try to complain about user names only when an actual
collision occurs, or even teach c_name() how to munge names
to avoid collisions.  But it is not trivial, especially when
collisions can occur across multiple types (such as via
inheritance or flat unions).  Besides, no existing .json
files are trying to use these names.  So it's easier to just
outright forbid the potential for collision.  We can always
relax things in the future if a real need arises for QMP to
express member names that have been forbidden here.

'has_' only has to be reserved for struct/union member names,
while 'q_' is reserved everywhere (matching the fact that
only members can be optional, while we use c_name() for munging
both members and entities).  Note that we could relax 'q_'
restrictions on entities independently from member names; for
example, c_name('qmp_' + 'unix') would result in a different
function name than our current 'qmp_' + c_name('unix').

Update and add tests to cover the new error messages.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-6-git-send-email-eblake@redhat.com>
[Consistently pass protect=False to c_name(); commit message tweaked
slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:26 +01:00
Eric Blake
255960dd37 qapi: Reserve '*List' type names for list types
Type names ending in 'List' can clash with qapi list types in
generated C.  We don't currently use such names. It is easier to
outlaw them now than to worry about how to resolve such a clash
in the future. For precedence, see commit 4dc2e69, which did the
same for names ending in 'Kind' versus implicit enum types for
qapi unions.

Update the testsuite to match.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-5-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:26 +01:00
Eric Blake
1976708321 tests/qapi-schema: Test for reserved names, empty struct
Add some testsuite coverage to ensure future patches are on
the right track:

Our current C representation of qapi arrays is done by appending
'List' to the element name; but we are not preventing the
creation of an object type with the same name.  Add
reserved-type-list.json to test this.  Then rename
enum-union-clash.json to reserved-type-kind.json to cover the
reservation that we DO detect, and shorten it to match the fact
that the name is reserved even if there is no clash.

We are failing to detect a collision between a dictionary member
and the implicit 'has_*' flag for another optional member. The
easiest fix would be for a future patch to reserve the entire
"has[-_]" namespace for member names (the collision is also
possible for branch names within flat unions, but only as long as
branch names can collide with (non-variant) members; however,
since future patches are about to remove that, it is not worth
testing here). Add reserved-member-has.json to test this.

A similar collision exists between a dictionary member where
c_name() munges what might otherwise be a reserved name to start
with 'q_', and another member explicitly starts with "q[-_]".
Again, the easiest solution for a future patch will be reserving
the entire namespace, but here for commands as well as members.
Add reserved-member-q.json and reserved-command-q.json to test
this; separate tests since arguably our munging of command 'unix'
to 'qmp_q_unix()' could be done without a q_, which is different
than the munging of a member 'unix' to 'foo.q_unix'.

Finally, our testsuite does not have any compilation coverage
of struct inheritance with empty qapi structs.  Update
qapi-schema-test.json to test this.

Note that there is currently no technical reason to forbid type
name patterns from member names, or member name patterns from
types, since the two are not in the same namespace in C and
won't collide; but it's not worth adding positive tests of these
corner cases at this time, especially while there is other churn
pending in patches that rearrange which collisions actually
happen.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1445898903-12082-2-git-send-email-eblake@redhat.com>
[Commit message tweaked slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-11-02 08:30:25 +01:00
Victor Kaplansky
3595e2eb0a tests/vhost-user-bridge: add vhost-user bridge application
The test existing in QEMU for vhost-user feature is good for
testing the management protocol, but does not allow actual
traffic. This patch proposes Vhost-User Bridge application, which
can serve the QEMU community as a comprehensive test by running
real internet traffic by means of vhost-user interface.

Essentially the Vhost-User Bridge is a very basic vhost-user
backend for QEMU. It runs as a standalone user-level process.
For packet processing Vhost-User Bridge uses an additional QEMU
instance with a backend configured by "-net socket" as a shared
VLAN.  This way another QEMU virtual machine can effectively
serve as a shared bus by means of UDP communication.

For a more simple setup, the another QEMU instance running the
SLiRP backend can be the same QEMU instance running vhost-user
client.

This Vhost-User Bridge implementation is very preliminary.  It is
missing many features. I has been studying vhost-user protocol
internals, so I've written vhost-user-bridge bit by bit as I
progressed through the protocol.  Most probably its internal
architecture will change significantly.

To run Vhost-User Bridge application:

1. Build vhost-user-bridge with a regular procedure. This will
create a vhost-user-bridge executable under tests directory:

    $ configure; make tests/vhost-user-bridge

2. Ensure the machine has hugepages enabled in kernel with
command line like:

    default_hugepagesz=2M hugepagesz=2M hugepages=2048

3. Run Vhost-User Bridge with:

    $ tests/vhost-user-bridge

The above will run vhost-user server listening for connections
on UNIX domain socket /tmp/vubr.sock, and will try to connect
by UDP to VLAN bridge to localhost:5555, while listening on
localhost:4444

Run qemu with a virtio-net backed by vhost-user:

    $ qemu \
        -enable-kvm -m 512 -smp 2 \
        -object memory-backend-file,id=mem,size=512M,mem-path=/dev/hugepages,share=on \
        -numa node,memdev=mem -mem-prealloc \
        -chardev socket,id=char0,path=/tmp/vubr.sock \
        -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \
        -device virtio-net-pci,netdev=mynet1 \
        -net none \
        -net socket,vlan=0,udp=localhost:4444,localaddr=localhost:5555 \
        -net user,vlan=0 \
        disk.img

vhost-user-bridge was tested very lightly: it's able to bringup a
linux on client VM with the virtio-net driver, and execute transmits
and receives to the internet. I tested with "wget redhat.com",
"dig redhat.com".

PS. I've consulted DPDK's code for vhost-user during Vhost-User
Bridge implementation.

Signed-off-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29 11:11:07 +02:00
Michael S. Tsirkin
12ebf69083 vhost-user-test: fix up rhel6 build
Build on RHEL6 fails:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42875

Apparently unnamed unions couldn't use C99  named field initializers.
Let's just name the payload union field.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-29 11:05:24 +02:00
Peter Maydell
251d7e6014 ivshmem series
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Merge remote-tracking branch 'remotes/elmarco/tags/ivshmem-pull-request' into staging

ivshmem series

# gpg: Signature made Mon 26 Oct 2015 09:27:46 GMT using RSA key ID 75969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>"
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* remotes/elmarco/tags/ivshmem-pull-request: (51 commits)
  doc: document ivshmem & hugepages
  ivshmem: use little-endian int64_t for the protocol
  ivshmem: use kvm irqfd for msi notifications
  ivshmem: rename MSI eventfd_table
  ivshmem: remove EventfdEntry.vector
  ivshmem: add hostmem backend
  ivshmem: use qemu_strtosz()
  ivshmem: do not keep shm_fd open
  tests: add ivshmem qtest
  qtest: add qtest_add_abrt_handler()
  msix: implement pba write (but read-only)
  contrib: remove unnecessary strdup()
  ivshmem: add check on protocol version in QEMU
  docs: update ivshmem device spec
  ivshmem-server: fix hugetlbfs support
  ivshmem-server: use a uint16 for client ID
  ivshmem-client: check the number of vectors
  contrib: add ivshmem client and server
  util: const event_notifier_get_fd() argument
  ivshmem: reset mask on device reset
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-26 11:32:20 +00:00
Marc-André Lureau
d9453c93fe ivshmem: add hostmem backend
Instead of handling allocation, teach ivshmem to use a memory backend.
This allows to use hugetlbfs backed memory now.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2015-10-26 10:19:53 +01:00
Marc-André Lureau
ddef6a0d68 tests: add ivshmem qtest
Adds 4 ivshmemtests:
- single qemu instance and basic IO
- pair of instances, check memory sharing
- pair of instances with server, and MSIX
- hot plug/unplug

A temporary shm is created as well as a directory to place server
socket, both should be clear on exit and abort.

Cc: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-10-26 10:19:48 +01:00
Marc-André Lureau
063c23d909 qtest: add qtest_add_abrt_handler()
Allow a test to add abort handlers, use GHook for all handlers.

There is currently no way to remove a handler, but it could be
later added if needed.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
2015-10-24 18:03:18 +02:00
Andreas Färber
bbfc2efefe tests: Add ivshmem qtest
Note that it launches two instances, as sharing memory is the purpose of
ivshmem.

Cc: Cam Macdonell <cam@cs.ualberta.ca>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
[ Remove Nahanni codename, add test to pci set - Marc-André ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-24 18:02:48 +02:00
Fam Zheng
c07bc2c165 tests: Add test case for aio_disable_external
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23 18:18:24 +02:00
Fam Zheng
dca21ef23b aio: Add "is_external" flag for event handlers
All callers pass in false, and the real external ones will switch to
true in coming patches.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23 18:18:23 +02:00
Max Reitz
2e1280e8ff hw/block/fdc: Implement tray status
The tray of an FDD is open iff there is no medium inserted (there are
only two states for an FDD: "medium inserted" or "no medium inserted").

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23 18:18:23 +02:00
Max Reitz
8e9e653038 iotests: Only create BB if necessary
Tests 071 and 081 test giving references in blockdev-add. It is not
necessary to create a BlockBackend here, so omit it.

While at it, fix up some blockdev-add invocations in the vicinity
(s/raw/$IMGFMT/ in 081, drop the format BDS for blkverify's raw child in
071).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23 18:18:22 +02:00
Max Reitz
be4b67bc7d blockdev: Allow creation of BDS trees without BB
If the "id" field is missing from the options given to blockdev-add,
just omit the BlockBackend and create the BlockDriverState tree alone.

However, if "id" is missing, "node-name" must be specified; otherwise,
the BDS tree would no longer be accessible.

Many BDS options which are not parsed by bdrv_open() (like caching)
cannot be specified for these BB-less BDS trees yet. A future patch will
remove this limitation.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-23 18:18:22 +02:00
Michael Roth
b3e9e584fc tests: test-qga, loosen assumptions about host filesystems
QGA skips pseudo-filesystems when querying filesystems via
guest-get-fsinfo. On some hosts, such as travis-ci which uses
containers with simfs filesystems, QGA might not report *any*
filesystems. Our test case assumes there would be at least one,
leading to false error messages in these situations.

Instead, sanity-check values iff we get at least one filesystem.

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-10-23 08:57:45 -05:00
Daniel P. Berrange
9024603776 configure: avoid polluting global CFLAGS with tasn1 flags
The previous commit

  commit 9a2fd4347c
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Mon Apr 13 14:01:39 2015 +0100

    crypto: add sanity checking of TLS x509 credentials

defined new variables $TEST_LIBS and $TEST_CFLAGS and
used them in tests/Makefile to augment $LIBS and $CFLAGS.

Unfortunately this overlooks the fact that tests/Makefile
is not executed via recursive-make, it is just pulled into
the top level Makefile via an include statement. So rather
than just augmenting the compiler/linker flags for tests
it polluted the global flags.

This is thought to be behind a reported failure when
building the pixman module as a sub-module, since global
$CFLAGS are passed down to configure in pixman.

This change removes the $TEST_LIBS and $TEST_CFLAGS
replacing them with $TASN1_LIBS and $TASN1_CFLAGS,
setting only against specific objects/executables
that need them.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-10-22 19:03:08 +01:00
Daniel P. Berrange
3a661f1eab crypto: add sanity checking of plaintext/ciphertext length
When encrypting/decrypting data, the plaintext/ciphertext
buffers are required to be a multiple of the cipher block
size. If this is not done, nettle will abort and gcrypt
will report an error. To get consistent behaviour add
explicit checks upfront for the buffer sizes.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-10-22 19:03:08 +01:00
Daniel P. Berrange
eb2a770b17 crypto: don't let builtin aes crash if no IV is provided
If no IV is provided, then use a default IV of all-zeros
instead of crashing. This gives parity with gcrypt and
nettle backends.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-10-22 19:03:08 +01:00
Peter Maydell
ca3e40e233 vhost, pc, virtio features, fixes, cleanups
New features:
     VT-d support for devices behind a bridge
     vhost-user migration support
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

vhost, pc, virtio features, fixes, cleanups

New features:
    VT-d support for devices behind a bridge
    vhost-user migration support

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu 22 Oct 2015 12:39:19 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (37 commits)
  hw/isa/lpc_ich9: inject the SMI on the VCPU that is writing to APM_CNT
  i386: keep cpu_model field in MachineState uptodate
  vhost: set the correct queue index in case of migration with multiqueue
  piix: fix resource leak reported by Coverity
  seccomp: add memfd_create to whitelist
  vhost-user-test: check ownership during migration
  vhost-user-test: add live-migration test
  vhost-user-test: learn to tweak various qemu arguments
  vhost-user-test: wrap server in TestServer struct
  vhost-user-test: remove useless static check
  vhost-user-test: move wait_for_fds() out
  vhost: add migration block if memfd failed
  vhost-user: use an enum helper for features mask
  vhost user: add rarp sending after live migration for legacy guest
  vhost user: add support of live migration
  net: add trace_vhost_user_event
  vhost-user: document migration log
  vhost: use a function for each call
  vhost-user: add a migration blocker
  vhost-user: send log shm fd along with log_base
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-22 12:41:44 +01:00
Marc-André Lureau
1d9edff78f vhost-user-test: check ownership during migration
Check that backend source and destination do not have simultaneous
ownership during migration.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:50 +03:00
Marc-André Lureau
b181974724 vhost-user-test: add live-migration test
This test checks that the log fd is given to the migration source, and
mark dirty pages during migration.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:50 +03:00
Marc-André Lureau
704b216887 vhost-user-test: learn to tweak various qemu arguments
Add a new macro to make the qemu command line with other
values of memory size, and specific chardev id.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:50 +03:00
Marc-André Lureau
ae31fb5491 vhost-user-test: wrap server in TestServer struct
In the coming patches, a test will use several servers
simultaneously. Wrap the server in a struct, out of the global scope.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:49 +03:00
Marc-André Lureau
82755ff202 vhost-user-test: remove useless static check
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:49 +03:00
Marc-André Lureau
cf72b57f89 vhost-user-test: move wait_for_fds() out
This function is a precondition for most vhost-user tests.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Thibaut Collet <thibaut.collet@6wind.com>
2015-10-22 14:34:49 +03:00
Peter Maydell
426c0df9e3 Merge io-channels-3 partial branch
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Merge remote-tracking branch 'remotes/berrange/tags/io-channel-3-for-upstream' into staging

Merge io-channels-3 partial branch

# gpg: Signature made Tue 20 Oct 2015 16:36:10 BST using RSA key ID 15104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>"

* remotes/berrange/tags/io-channel-3-for-upstream:
  util: pull Buffer code out of VNC module
  coroutine: move into libqemuutil.a library
  osdep: add qemu_fork() wrapper for safely handling signals
  ui: convert VNC startup code to use SocketAddress
  sockets: allow port to be NULL when listening on IP address
  sockets: move qapi_copy_SocketAddress into qemu-sockets.c
  sockets: add helpers for creating SocketAddress from a socket

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-20 16:51:43 +01:00
Daniel P. Berrange
10817bf09d coroutine: move into libqemuutil.a library
The coroutine files are currently referenced by the block-obj-y
variable. The coroutine functionality though is already used by
more than just the block code. eg migration code uses coroutine
yield. In the future the I/O channel code will also use the
coroutine yield functionality. Since the coroutine code is nicely
self-contained it can be easily built as part of the libqemuutil.a
library, making it widely available.

The headers are also moved into include/qemu, instead of the
include/block directory, since they are now part of the util
codebase, and the impl was never in the block/ directory
either.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-10-20 14:59:04 +01:00
Peter Maydell
df81978368 fw_cfg: add dma interface, add strings via cmdline.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-fw_cfg-20151020-1' into staging

fw_cfg: add dma interface, add strings via cmdline.

# gpg: Signature made Tue 20 Oct 2015 07:07:34 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-fw_cfg-20151020-1:
  fw_cfg: Define a static signature to be returned on DMA port reads
  Enable fw_cfg DMA interface for x86
  Enable fw_cfg DMA interface for ARM
  Implement fw_cfg DMA interface
  fw_cfg DMA interface documentation
  fw_cfg: document fw_cfg_modify_iXX() update functions
  fw_cfg: insert string blobs via qemu cmdline

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-20 11:45:23 +01:00
Marc-André Lureau
62c39b307b tests: add a local test for guest agent
Add some local guest agent tests, as it is better than nothing, only
when CONFIG_POSIX (using unix sockets).

With the QGA_TEST_SIDE_EFFECTING environment variable, it will include
tests with side effects, such as freezing/thawing the FS or changing the
time.

(a better test would involve a managed VM (or container), but it might
be better to leave that off to autotest/avocado)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
* use mkdtemp() in placeof g_mkdtemp() for glib 2.22 compat
* drop redundant/conflicting compat defines for
  g_assert_{true,false}, since glib-compat has them now.
* build fixes for OSX: use PRId64 instead of glib formats, drop
  g_spawn_default usage for glib compat
* assert connect_qga() doesn't fail
* only enable test-qga for linux hosts
* allow get-memory-block-info* to fail
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-10-19 18:30:50 -05:00
Marc-André Lureau
dc47995e52 qtest: add a few fd-level qmp helpers
Add a few functions to interact with qmp via a simple fd.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-10-19 18:28:06 -05:00
Marc Marí
a4c0d1deb7 Implement fw_cfg DMA interface
Based on the specifications on docs/specs/fw_cfg.txt

This interface is an addon. The old interface can still be used as usual.

Based on Gerd Hoffman's initial implementation.

Signed-off-by: Marc Marí <markmb@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-19 15:26:53 +02:00
Peter Maydell
c737c7a608 Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Fri 16 Oct 2015 14:36:50 BST using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (29 commits)
  blkdebug: Don't confuse image as backing file
  qcow2: Remove forward declaration of QCowAIOCB
  qemu-nbd: always compile in --aio=MODE option
  blockdev: always compile in -drive aio= parsing
  raw-posix: warn about BDRV_O_NATIVE_AIO if libaio is unavailable
  block: auto-generated node-names
  util - add automated ID generation utility
  blkverify: Fix BDS leak in .bdrv_open error path
  block: Allow bdrv_unref_child(bs, NULL)
  block: Remove bdrv_swap()
  block: Add and use bdrv_replace_in_backing_chain()
  blockjob: Store device name at job creation
  block: Implement bdrv_append() without bdrv_swap()
  block: Introduce parents list
  block-backend: Add blk_set_bs()
  block/io: Make bdrv_requests_pending() public
  block: Split bdrv_move_feature_fields()
  block: Manage backing file references in bdrv_set_backing_hd()
  block: Convert bs->backing_hd to BdrvChild
  block: Remove bdrv_open_image()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-17 22:14:52 +01:00
Peter Maydell
6d57410a79 target-arm queue:
* break TBs after ISB instructions
  * more support code for future implementation of EL2 and 64-bit EL3
  * tell guest if KVM is enabled in SMBIOS version string
  * implement OSLAR/OSLSR system registers
  * provide better help text for Sharp PDA machine names
  * rename imx25_pdk to imx25-pdk (since it has never been released
    with the underscore-version name)
  * fix MMIO writes in zynq_slcr
  * implement MDCR_EL2
  * virt: allow the guest to configure PCI BARs with zero PCI addresses
  * fix breakpoint handling code
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20151016' into staging

target-arm queue:
 * break TBs after ISB instructions
 * more support code for future implementation of EL2 and 64-bit EL3
 * tell guest if KVM is enabled in SMBIOS version string
 * implement OSLAR/OSLSR system registers
 * provide better help text for Sharp PDA machine names
 * rename imx25_pdk to imx25-pdk (since it has never been released
   with the underscore-version name)
 * fix MMIO writes in zynq_slcr
 * implement MDCR_EL2
 * virt: allow the guest to configure PCI BARs with zero PCI addresses
 * fix breakpoint handling code

# gpg: Signature made Fri 16 Oct 2015 14:56:15 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"

* remotes/pmaydell/tags/pull-target-arm-20151016:
  target-arm: Fix CPU breakpoint handling
  target-arm: Fix GDB breakpoint handling
  target-arm: implement arm_debug_target_el()
  hw/arm/virt: Allow zero address for PCI IO space
  target-arm: Add MDCR_EL2
  misc: zynq_slcr: Fix MMIO writes
  arm: imx25-pdk: Fix machine name
  target-arm: Provide model numbers for Sharp PDAs
  target-arm: Implement AArch64 OSLAR/OSLSR_EL1 sysregs
  hw/arm/virt: smbios: inform guest of kvm
  target-arm: Avoid calling arm_el_is_aa64() function for unimplemented EL
  target-arm: Break the TB after ISB to execute self-modified code correctly
  target-arm: Add missing 'static' attribute

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-17 12:31:33 +01:00
Jeff Cody
15489c769b block: auto-generated node-names
If a node-name is not specified, automatically generate the node-name.

Generated node-names will use the "block" sub-system identifier.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-16 15:34:30 +02:00
Jeff Cody
68e517a8d7 block: qemu-iotests - fix vmdk test 059.out
In commit fe646693ac, the option
printout format changed.

This updates the VMDK test 059.out to the correct output.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-16 15:34:29 +02:00
Alberto Garcia
317438e6db throttle: test that snapshots move the throttling configuration
If a snapshot is performed on a device that has I/O limits they should
be moved to the target image (the new active layer).

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-16 15:34:29 +02:00
Alberto Garcia
efd0fbbcf5 iotests: disable core dumps in test 061
Commit 934659c460 disabled the supression of segmentation faults in
bash tests. The new output of test 061, however, assumes that a core
dump will be produced if a program aborts. This is not necessarily the
case because core dumps can be disabled using ulimit.

Since we cannot guarantee that abort() will produce a core dump, we
should use SIGKILL instead (that does not produce any) and update the
test output accordingly.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-16 15:34:29 +02:00
Peter Crosthwaite
b64d64de1a arm: imx25-pdk: Fix machine name
ARM uses dashes instead of underscores for machine names. Fix imx25_pdk
which has not seen a release yet (so there is no legacy yet).

Cc: Jean-Christophe Dubois <jcd@tribudubois.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 1444445785-3648-1-git-send-email-crosthwaite.peter@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: Added change to tests/ds1338-test.c to use new machine name]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-16 11:14:53 +01:00
Eric Blake
9f08c8ec73 qapi: Lazy creation of array types
Commit ac88219a had several TODO markers about whether we needed
to automatically create the corresponding array type alongside
any other type.  It turns out that most of the time, we don't!

There are a few exceptions: 1) We have a few situations where we
use an array type in internal code but do not expose that type
through QMP; fix it by declaring a dummy type that forces the
generator to see that we want to use the array type.

2) The builtin arrays (such as intList for QAPI ['int']) must
always be generated, because of the way our QAPI_TYPES_BUILTIN
compile guard works: we have situations (at the very least
tests/test-qmp-output-visitor.c) that include both top-level
"qapi-types.h" (via "error.h") and a secondary
"test-qapi-types.h". If we were to only emit the builtin types
when used locally, then the first .h file would not include all
types, but the second .h does not declare anything at all because
the first .h set QAPI_TYPES_BUILTIN, and we would end up with
compilation error due to things like unknown type 'int8List'.

Actually, we may need to revisit how we do type guards, and
change from a single QAPI_TYPES_BUILTIN over to a different
usage pattern that does one #ifdef per qapi type - right now,
the only types that are declared multiple times between two qapi
.json files for inclusion by a single .c file happen to be the
builtin arrays.  But now that we have QAPI 'include' statements,
it is logical to assume that we will soon reach a point where
we want to reuse non-builtin types (yes, I'm thinking about what
it will take to add introspection to QGA, where we will want to
reuse the SchemaInfo type and friends).  One #ifdef per type
will help ensure that generating the same qapi type into more
than one qapi-types.h won't cause collisions when both are
included in the same .c file; but we also have to solve how to
avoid creating duplicate qapi-types.c entry points.  So that
is a problem left for another day.

Generated code for qapi-types and qapi-visit is drastically
reduced; less than a third of the arrays that were blindly
created were actually needed (a quick grep shows we dropped
from 219 to 69 *List types), and the .o files lost more than
30% of their bulk.  [For best results, diff the generated
files with 'git diff --patience --no-index pre post'.]

Interestingly, the introspection output is unchanged - this is
because we already cull all types that are not indirectly
reachable from a command or event, so introspection was already
using only a subset of array types.  The subset of types
introspected is now a much larger percentage of the overall set
of array types emitted in qapi-types.h (since the larger set
shrunk), but still not 100% (evidence that the array types
emitted for our new Dummy structs, and the new struct itself,
don't affect QMP).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444710158-8723-9-git-send-email-eblake@redhat.com>
[Moved array info tracking to a later patch]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:08 +02:00
Eric Blake
849ab13c16 qapi: Drop redundant args-member-array test
qapi-schema-test already ensures that we can correctly compile
an array of enums (__org.qemu_x-command), an array of builtins
(UserDefNativeListUnion), and an array of structs (again
__org.qemu_x-command).  That means args-member-array is not
adding any additional parse-only test coverage, so drop it.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444760807-11307-1-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:08 +02:00
Eric Blake
70478cef83 qapi: Drop redundant flat-union-reverse-define test
As of commit 8c3f8e77, we test compilation of forward references
for a struct base type (UserDefOne), flat union base type
(UserDefUnionBase), and flat union branch type
(UserDefFlatUnion2). The only remaining forward reference being
tested for parsing in flat-union-reverse-define was a forward
enum declaration.  Once we make sure that always compiles,
the smaller parse-only test is redundant and can be deleted.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444710158-8723-7-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:07 +02:00
Eric Blake
cae95eae62 qapi: Drop redundant returns-int test
qapi-schema-test was already testing that we could have a
command returning int, but burned a command name in the whitelist.
Merge the redundant positive test returns-int, and pick a name
that reduces the whitelist size.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444710158-8723-6-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:07 +02:00
Eric Blake
625b251c69 qapi: Move empty-enum to compile-time test
Rather than just asserting that we can parse an empty enum,
let's also make sure we can compile it, by including it in
qapi-schema-test.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444710158-8723-5-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:07 +02:00
Eric Blake
baabb84c5b qapi: Drop redundant alternate-good test
The alternate-good.json test was already covered by
qapi-schema-test.json.  As future commits will be tweaking
how alternates are laid out, removing the duplicate test now
reduces churn.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1444710158-8723-4-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-15 08:39:07 +02:00
Eric Blake
376863ef48 qapi: Reuse code for flat union base validation
Rather than open-code the check for a valid base type, we
should reuse the common functionality. This allows for
consistent error messages, and also makes it easier for a
later patch to turn on support for inline anonymous base
structures.

Test flat-union-inline is updated to test only one feature
(anonymous branch dictionaries), which can be implemented
independently (test flat-union-bad-base already covers the
idea of an anonymous base dictionary).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-10-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:46:49 +02:00
Eric Blake
9c51b44129 qapi: Test use of 'number' within alternates
Add some testsuite exposure for use of a 'number' as part of
an alternate.  The current state of the tree has a few bugs
exposed by this: our input parser depends on the ordering of
how the qapi schema declared the alternate, and the parser
does not accept integers for a 'number' in an alternate even
though it does for numbers outside of an alternate.

Mixing 'int' and 'number' in the same alternate is unusual,
since both are supplied by json-numbers, but there does not
seem to be a technical reason to forbid it given that our
json lexer distinguishes between json-numbers that can be
represented as an int vs. those that cannot.

Improve the existing test_visitor_in_alternate() to match the
style of the new test_visitor_in_alternate_number(), and to
ensure full coverage of all possible qtype parsing.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-9-git-send-email-eblake@redhat.com>
[Eric's follow-up fixes squashed in]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:46:13 +02:00
Eric Blake
8d25dd101f qapi: Add tests for empty unions
The documentation claims that alternates are useful for
allowing two or more types, although nothing enforces this.
Meanwhile, it is silent on whether empty unions are allowed.
In practice, the generated code will compile, in part because
we have a 'void *data' branch; but attempting to visit such a
type will cause an abort().  While there's no technical reason
that a degenerate union could not be made to work, it's harder
to justify the time spent in chasing known (the current
abort() during visit) and unknown corner cases, than it would
be to just outlaw them.  A future patch will probably take the
approach of forbidding them; in the meantime, we can at least
add testsuite coverage to make it obvious where things stand.

In addition to adding tests to expose the problems, we also
need to adjust existing tests that are meant to test something
else, but which could fail for the wrong reason if we reject
degenerate alternates/unions.

Note that empty structs are explicitly supported (for example,
right now they are the only way to specify that one branch of a
flat union adds no additional members), and empty enums are
covered by the testsuite as working (even if they do not seem
to have much use).

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-8-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
Eric Blake
7b2a5c2f9a qapi: Avoid assertion failure on union 'type' collision
The previous commit added two tests that triggered an assertion
failure. It's fairly straightforward to avoid the failure by
just outright forbidding the collision between a union's tag
values and its discriminator name (including the implicit name
'kind' supplied for simple unions [*]).  Ultimately, we'd like
to move the collision detection into QAPISchema*.check(), but
for now it is easier just to enhance the existing checks.

[*] Of course, down the road, we have plans to rename the simple
union tag name to 'type' to match the QMP wire name, but the
idea of the collision will still be present even then.

Technically, we could avoid the collision by naming the C union
members representing each enum value as '_case_value' rather
than 'value'; but until we have an actual qapi client (and not
just our testsuite) that has a legitimate reason to match a
case label to the name of a QMP key and needs the name munging
to satisfy the compiler, it's easier to just reject the qapi
as invalid.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-7-git-send-email-eblake@redhat.com>
[Polished a few comments]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
Eric Blake
d220fbcd1d qapi: Test for various name collisions
Expose some weaknesses in the generator: we don't always forbid
the generation of structs that contain multiple members that map
to the same C or QMP name.  This has already been marked FIXME in
qapi.py in commit d90675f, but having more tests will make sure
future patches produce desired behavior; and updating existing
patches to better document things doesn't hurt, either.  Some of
these collisions are already caught in the old-style parser
checks, but ultimately we want all collisions to be caught in the
new-style QAPISchema*.check() methods.

This patch focuses on C struct members, and does not consider
collisions between commands and events (affecting C function
names), or even collisions between generated C type names with
user type names (for things like automatic FOOList struct
representing array types or FOOKind for an implicit enum).

There are two types of struct collisions we want to catch:
 1) Collision between two keys in a JSON object. qapi.py prevents
    that within a single struct (see test duplicate-key), but it is
    possible to have collisions between a type's members and its
    base type's members (existing tests struct-base-clash,
    struct-base-clash-deep), and its flat union variant members
    (renamed test flat-union-clash-member).
 2) Collision between two members of the C struct that is generated
    for a given QAPI type:
    a) Multiple QAPI names map to the same C name (new test
       args-name-clash)
    b) A QAPI name maps to a C name that is used for another purpose
       (new tests flat-union-clash-branch, struct-base-clash-base,
       union-clash-data). We already fixed some such cases in commit
       0f61af3e and 1e6c1616, but more remain.
    c) Two C names generated for other purposes clash
       (updated test alternate-clash, new test union-clash-branches,
       union-clash-type, flat-union-clash-type)

Ultimately, if we need to have a flat union where a tag value
clashes with a base member name, we could change the generator to
name the union (using 'foo.u.value' rather than 'foo.value') or
otherwise munge the C name corresponding to tag values.  But
unless such a need arises, it will probably be easier to just
forbid these collisions.

Some of these negative tests will be deleted later, and positive
tests added to qapi-schema-test.json in their place, when the
generator code is reworked to avoid particular code generation
collisions in class 2).

[Note that viewing this patch with git rename detection enabled
may see some confusion due to renaming some tests while adding
others, but where the content is similar enough that git picks
the wrong pre- and post-patch files to associate]

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-6-git-send-email-eblake@redhat.com>
[Improve commit message and comments a bit, drop an unrelated test]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
Eric Blake
7408fb67c0 qapi: Improve 'include' error message
Use of '"...%s" % include' to print non-strings can lead to
ugly messages, such as this (if the .json change is applied
without the qapi.py change):
 Expected a file name (string), got: OrderedDict()

Better is to just omit the actual non-string value in the
message.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-3-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
Eric Blake
1ffe818a39 qapi: Sort qapi-schema tests
Recent changes to qapi have provided quite a bit of churn in
the makefile, because we are inconsistent on what order test
names appear in, and on whether to re-wrap the list of tests or
just add arbitrary line lengths.  Writing the list in a sorted
fashion, one test per line, will make future patches easier
to see what tests are being added or removed by a patch.

Although it is tempting to use $(wildcard qapi-schema/*.json)
for a more compact listing, such an approach would risk picking
up leftover garbage .json files in the directory; so keeping
the list explicit is safer for ensuring reproducible tarballs
and test results.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443565276-4535-2-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 18:44:54 +02:00
Peter Maydell
0bf224d5da -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 12 Oct 2015 08:56:47 BST using RSA key ID 398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  tests: add test cases for netfilter object
  netfilter: add a netbuffer filter
  net/queue: export qemu_net_queue_append_iov
  netfilter: print filter info associate with the netdev
  netfilter: add an API to pass the packet to next filter
  net/queue: introduce NetQueueDeliverFunc
  net: merge qemu_deliver_packet and qemu_deliver_packet_iov
  netfilter: hook packets before net queue send
  init/cleanup of netfilter object
  vl.c: init delayed object after net_init_clients
  vmxnet3: Add support for VMXNET3_CMD_GET_ADAPTIVE_RING_INFO command
  e1000: use alias for default model
  vmxnet3: Support reading IMR registers on bar0
  net/vmxnet3: Refine l2 header validation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-12 14:29:29 +01:00
Yang Hongyang
89b1273742 tests: add test cases for netfilter object
Using qtest qmp interface to implement following cases:
1) add/remove netfilter
2) add a netfilter then delete the netdev
3) add/remove more than one netfilters
4) add more than one netfilters and then delete the netdev

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:34:32 +08:00
Markus Armbruster
4c315c2766 qdev: Protect device-list-properties against broken devices
Several devices don't survive object_unref(object_new(T)): they crash
or hang during cleanup, or they leave dangling pointers behind.

This breaks at least device-list-properties, because
qmp_device_list_properties() needs to create a device to find its
properties.  Broken in commit f4eb32b "qmp: show QOM properties in
device-list-properties", v2.1.  Example reproducer:

    $ qemu-system-aarch64 -nodefaults -display none -machine none -S -qmp stdio
    {"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2}, "package": ""}, "capabilities": []}}
    { "execute": "qmp_capabilities" }
    {"return": {}}
    { "execute": "device-list-properties", "arguments": { "typename": "pxa2xx-pcmcia" } }
    qemu-system-aarch64: /home/armbru/work/qemu/memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed.
    Aborted (core dumped)
    [Exit 134 (SIGABRT)]

Unfortunately, I can't fix the problems in these devices right now.
Instead, add DeviceClass member cannot_destroy_with_object_finalize_yet
to mark them:

* Hang during cleanup (didn't debug, so I can't say why):
  "realview_pci", "versatile_pci".

* Dangling pointer in cpus: most CPUs, plus "allwinner-a10", "digic",
  "fsl,imx25", "fsl,imx31", "xlnx,zynqmp", because they create such
  CPUs

* Assert kvm_enabled(): "host-x86_64-cpu", host-i386-cpu",
  "host-powerpc64-cpu", "host-embedded-powerpc-cpu",
  "host-powerpc-cpu" (the powerpc ones can't currently reach the
  assertion, because the CPUs are only registered when KVM is enabled,
  but the assertion is arguably in the wrong place all the same)

Make qmp_device_list_properties() fail cleanly when the device is so
marked.  This improves device-list-properties from "crashes, hangs or
leaves dangling pointers behind" to "fails".  Not a complete fix, just
a better-than-nothing work-around.  In the above reproducer,
device-list-properties now fails with "Can't list properties of device
'pxa2xx-pcmcia'".

This also protects -device FOO,help, which uses the same machinery
since commit ef52358 "qdev-monitor: include QOM properties in -device
FOO, help output", v2.2.  Example reproducer:

    $ qemu-system-aarch64 -machine none -device pxa2xx-pcmcia,help

Before:

    qemu-system-aarch64: .../memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed.

After:

    Can't list properties of device 'pxa2xx-pcmcia'

Cc: "Andreas Färber" <afaerber@suse.de>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Green <green@moxielogic.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Jia Liu <proljc@gmail.com>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: qemu-ppc@nongnu.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1443689999-12182-10-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster
edb1523d90 qmp: Fix device-list-properties not to crash for abstract device
Broken in commit f4eb32b "qmp: show QOM properties in
device-list-properties", v2.1.

Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-Id: <1443689999-12182-9-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster
2d1abb850f device-introspect-test: New, covering device introspection
The test doesn't check that the output makes any sense, only that QEMU
survives.  Useful since we've had an astounding number of crash bugs
around there.

In fact, we have a bunch of them right now: a few devices crash or
hang, and some leave dangling pointers behind.  The test skips testing
the broken parts.  The next commits will fix them up, and drop the
skipping.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443689999-12182-8-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster
5fb48d9673 libqtest: New hmp() & friends
New convenience function hmp() to facilitate use of
human-monitor-command in tests.  Use it to simplify its existing uses.

To blend into existing libqtest code, also add qtest_hmpv() and
qtest_hmp().  That, and the egregiously verbose GTK-Doc comment format
make this patch look bigger than it is.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1443689999-12182-7-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster
82b15c7bdb libqtest: Clean up unused QTestState member sigact_old
Unused since commit d766825.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1443689999-12182-6-git-send-email-armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster
e253c28715 tests: Fix how qom-test is run
We want to run qom-test for every architecture, without having to
manually add it to every architecture's list of tests.  Commit 3687d53
accomplished this by adding it to every architecture's list
automatically.

However, some architectures inherit their tests from others, like this:

    check-qtest-x86_64-y = $(check-qtest-i386-y)
    check-qtest-microblazeel-y = $(check-qtest-microblaze-y)
    check-qtest-xtensaeb-y = $(check-qtest-xtensa-y)

For such architectures, we ended up running the (slow!) test twice.
Commit 2b8419c attempted to avoid this by adding the test only when
it's not already present.  Works only as long as we consider adding
the test to the architectures on the left hand side *after* the ones
on the right hand side: x86_64 after i386, microblazeel after
microblaze, xtensaeb after xtensa.

Turns out we consider them in $(SYSEMU_TARGET_LIST) order.  Defined as

    SYSEMU_TARGET_LIST := $(subst -softmmu.mak,,$(notdir \
       $(wildcard $(SRC_PATH)/default-configs/*-softmmu.mak)))

On my machine, this results in the oder xtensa, x86_64, microblazeel,
microblaze, i386.  Consequently, qom-test runs twice for microblazeel
and x86_64.

Replace this complex and flawed machinery with a much simpler one: add
generic tests (currently just qom-test) to check-qtest-generic-y
instead of check-qtest-$(target)-y for every target, then run
$(check-qtest-generic-y) for every target.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Message-Id: <1443689999-12182-5-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Dr. David Alan Gilbert
deb847bfba tests: Unique test path for /string-visitor/output
Newer GLib's want unique test paths, and thus moan at dupes.
(Seen on Fedora 23 which has glib 2.46)

Uniquify the paths.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:48:17 +03:00
Peter Maydell
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Mon 05 Oct 2015 17:01:11 BST using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  qtest/ide-test: ppc64be correction for ATAPI tests
  MAINTAINERS: Small IDE/FDC touchup
  qtest/ahci: fix redundant assertion

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-06 12:09:56 +01:00
Michael S. Tsirkin
7fe34ca9c2 tests: vhost-user: disable unless CONFIG_VHOST_NET
vhost-user depends on vhost-net. We should probably fix that.
For now, let's disable the test otherwise.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-06 10:19:27 +01:00
John Snow
ec6b69ca03 qtest/ide-test: ppc64be correction for ATAPI tests
the 16bit ide data register is LE by definition.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1443461938-30039-1-git-send-email-jsnow@redhat.com
2015-10-05 12:00:56 -04:00
John Snow
3d937150dc qtest/ahci: fix redundant assertion
Fixes https://bugs.launchpad.net/qemu/+bug/1497711

(!ncq || (ncq && lba48)) is the same as
(!ncq || lba48).

The intention is simply: "If a command is NCQ,
it must also be LBA48."

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1442868929-17777-1-git-send-email-jsnow@redhat.com
2015-10-05 12:00:55 -04:00
Peter Maydell
c0b520dfb8 virtio,pc features, fixes
New features:
     guest RAM buffer overrun mitigation
     RAM physical address gaps for memory hotplug
     (except refactoring which got some review comments)
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio,pc features, fixes

New features:
    guest RAM buffer overrun mitigation
    RAM physical address gaps for memory hotplug
    (except refactoring which got some review comments)

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 02 Oct 2015 15:04:56 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  vhost-user-test: fix predictable filename on tmpfs
  vhost-user-test: use tmpfs by default
  pc: memhp: force gaps between DIMM's GPA
  memhp: extend address auto assignment to support gaps
  vhost-user: unit test for new messages
  vhost-user-test: do not reinvent glib-compat.h
  virtio: Notice when the system doesn't support MSIx at all
  pc: Add a comment explaining why pc_compat_2_4() doesn't exist
  exec: allocate PROT_NONE pages on top of RAM
  oslib: allocate PROT_NONE pages on top of RAM
  oslib: rework anonimous RAM allocation
  virtio-net: correctly drop truncated packets
  virtio: introduce virtqueue_discard()
  virtio: introduce virtqueue_unmap_sg()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-02 16:59:21 +01:00
Michael S. Tsirkin
6fdac09370 vhost-user-test: fix predictable filename on tmpfs
vhost-user-test uses getpid to create a unique filename. This name is
predictable, and a security problem.  Instead, use a tmp directory
created by mkdtemp, which is a suggested best practice.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-02 17:04:32 +03:00
Michael S. Tsirkin
1b7e1e3b46 vhost-user-test: use tmpfs by default
Most people don't run make check by default, so they skip vhost-user
unit tests.  Solve this by using tmpfs instead, unless hugetlbfs is
specified (using an environment variable).

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-02 17:04:32 +03:00
Michael S. Tsirkin
8a9b6b37da vhost-user: unit test for new messages
Data is empty for now, but do make sure master
sets the new feature bit flag.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-02 17:04:32 +03:00
Paolo Bonzini
ca06d9cc66 vhost-user-test: do not reinvent glib-compat.h
glib-compat.h has the gunk to support both old-style and new-style
gthread functions.  Use it instead of reinventing it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-02 17:04:31 +03:00
Max Reitz
bb3c801df7 iotests: Fix test 128 for password-less sudo
As of 934659c460, $QEMU_IO is generally no
longer a program name, and therefore "sudo -n $QEMU_IO" will no longer
work.

Fix this by copying the qemu-io invocation function from common.config,
making it use $sudo for invoking $QEMU_IO_PROG, and then use that
function instead of $QEMU_IO.

Reported-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-02 13:48:29 +02:00
Eric Blake
552bb52c4b tests: Fix test 049 fallout from improved HMP error messages
Commit 50b7b000 improved HMP error messages, but forgot to update
qemu-iotests to match.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-10-02 13:48:29 +02:00
Peter Maydell
9e071429e6 * First batch of MAINTAINERS updates
* IOAPIC fixes (to pass kvm-unit-tests with -machine kernel_irqchip=off)
 * NBD API upgrades from Daniel
 * strtosz fixes from Marc-André
 * improved support for readonly=on on scsi-generic devices
 * new "info ioapic" and "info lapic" monitor commands
 * Peter Crosthwaite's ELF_MACHINE cleanups
 * docs patches from Thomas and Daniel
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* First batch of MAINTAINERS updates
* IOAPIC fixes (to pass kvm-unit-tests with -machine kernel_irqchip=off)
* NBD API upgrades from Daniel
* strtosz fixes from Marc-André
* improved support for readonly=on on scsi-generic devices
* new "info ioapic" and "info lapic" monitor commands
* Peter Crosthwaite's ELF_MACHINE cleanups
* docs patches from Thomas and Daniel

# gpg: Signature made Fri 25 Sep 2015 11:20:52 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (52 commits)
  doc: Refresh URLs in the qemu-tech documentation
  docs: describe the QEMU build system structure / design
  typedef: add typedef for QemuOpts
  i386: interrupt poll processing
  i386: partial revert of interrupt poll fix
  ppc: Rename ELF_MACHINE to be PPC specific
  i386: Rename ELF_MACHINE to be x86 specific
  alpha: Remove ELF_MACHINE from cpu.h
  mips: Remove ELF_MACHINE from cpu.h
  sparc: Remove ELF_MACHINE from cpu.h
  s390: Remove ELF_MACHINE from cpu.h
  sh4: Remove ELF_MACHINE from cpu.h
  xtensa: Remove ELF_MACHINE from cpu.h
  tricore: Remove ELF_MACHINE from cpu.h
  or32: Remove ELF_MACHINE from cpu.h
  lm32: Remove ELF_MACHINE from cpu.h
  unicore: Remove ELF_MACHINE from cpu.h
  moxie: Remove ELF_MACHINE from cpu.h
  cris: Remove ELF_MACHINE from cpu.h
  m68k: Remove ELF_MACHINE from cpu.h
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-25 21:52:30 +01:00
Peter Maydell
690b286fef Remove muldiv64() by using period instead of frequency
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Merge remote-tracking branch 'remotes/vivier-misc/tags/pull-muldiv64-20150925' into staging

Remove muldiv64() by using period instead of frequency

# gpg: Signature made Fri 25 Sep 2015 14:54:37 BST using RSA key ID 3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier-misc/tags/pull-muldiv64-20150925:
  net: remove muldiv64()
  bt: remove muldiv64()
  hpet: remove muldiv64()
  arm: clarify the use of muldiv64()
  openrisc: remove muldiv64()
  mips: remove muldiv64()
  pcnet: remove muldiv64()
  rtl8139: remove muldiv64()
  i6300esb: remove muldiv64()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-25 18:03:19 +01:00
Laurent Vivier
37b9ab92f7 rtl8139: remove muldiv64()
Originally, timers were ticks based, and it made sense to
add ticks to current time to know when to trigger an alarm.

But since commit:

7447545 change all other clock references to use nanosecond resolution accessors

All timers use nanoseconds and we need to convert ticks to nanoseconds, by
doing something like:

    y = muldiv64(x, get_ticks_per_sec(), PCI_FREQUENCY)

where x is the number of device ticks and y the number of system ticks.

y is used as nanoseconds in timer functions,
it works because 1 tick is 1 nanosecond.
(get_ticks_per_sec() is 10^9)

But as PCI frequency is 33 MHz, we can also do:

    y = x * 30; /* 33 MHz PCI period is 30 ns */

Which is much more simple.

This implies a 33.333333 MHz PCI frequency,
but this is correct.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-09-25 14:53:29 +02:00
Marc-André Lureau
fe85453867 tests: add some qemu_strtosz() tests
While reading the function I decided to write some tests.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1442419377-9309-2-git-send-email-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-25 12:04:41 +02:00
Yuanhan Liu
d1f8b30ec8 vhost: rename VHOST_RESET_OWNER to VHOST_RESET_DEVICE
Quote from Michael:

    We really should rename VHOST_RESET_OWNER to VHOST_RESET_DEVICE.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Tested-by: Marcel Apfelbaum <marcel@redhat.com>
2015-09-24 16:27:52 +03:00
Markus Armbruster
39a1815816 qapi: New QMP command query-qmp-schema for QMP introspection
qapi/introspect.json defines the introspection schema.  It's designed
for QMP introspection, but should do for similar uses, such as QGA.

The introspection schema does not reflect all the rules and
restrictions that apply to QAPI schemata.  A valid QAPI schema has an
introspection value conforming to the introspection schema, but the
converse is not true.

Introspection lowers away a number of schema details, and makes
implicit things explicit:

* The built-in types are declared with their JSON type.

  All integer types are mapped to 'int', because how many bits we use
  internally is an implementation detail.  It could be pressed into
  external interface service as very approximate range information,
  but that's a bad idea.  If we need range information, we better do
  it properly.

* Implicit type definitions are made explicit, and given
  auto-generated names:

  - Array types, named by appending "List" to the name of their
    element type, like in generated C.

  - The enumeration types implicitly defined by simple union types,
    named by appending "Kind" to the name of their simple union type,
    like in generated C.

  - Types that don't occur in generated C.  Their names start with ':'
    so they don't clash with the user's names.

* All type references are by name.

* The struct and union types are generalized into an object type.

* Base types are flattened.

* Commands take a single argument and return a single result.

  Dictionary argument or list result is an implicit type definition.

  The empty object type is used when a command takes no arguments or
  produces no results.

  The argument is always of object type, but the introspection schema
  doesn't reflect that.

  The 'gen': false directive is omitted as implementation detail.

  The 'success-response' directive is omitted as well for now, even
  though it's not an implementation detail, because it's not used by
  QMP.

* Events carry a single data value.

  Implicit type definition and empty object type use, just like for
  commands.

  The value is of object type, but the introspection schema doesn't
  reflect that.

* Types not used by commands or events are omitted.

  Indirect use counts as use.

* Optional members have a default, which can only be null right now

  Instead of a mandatory "optional" flag, we have an optional default.
  No default means mandatory, default null means optional without
  default value.  Non-null is available for optional with default
  (possible future extension).

* Clients should *not* look up types by name, because type names are
  not ABI.  Look up the command or event you're interested in, then
  follow the references.

  TODO Should we hide the type names to eliminate the temptation?

New generator scripts/qapi-introspect.py computes an introspection
value for its input, and generates a C variable holding it.

It can generate awfully long lines.  Marked TODO.

A new test-qmp-input-visitor test case feeds its result for both
tests/qapi-schema/qapi-schema-test.json and qapi-schema.json to a
QmpInputVisitor to verify it actually conforms to the schema.

New QMP command query-qmp-schema takes its return value from that
variable.  Its reply is some 85KiBytes for me right now.

If this turns out to be too much, we have a couple of options:

* We can use shorter names in the JSON.  Not the QMP style.

* Optionally return the sub-schema for commands and events given as
  arguments.

  Right now qmp_query_schema() sends the string literal computed by
  qmp-introspect.py.  To compute sub-schema at run time, we'd have to
  duplicate parts of qapi-introspect.py in C.  Unattractive.

* Let clients cache the output of query-qmp-schema.

  It changes only on QEMU upgrades, i.e. rarely.  Provide a command
  query-qmp-schema-hash.  Clients can have a cache indexed by hash,
  and re-query the schema only when they don't have it cached.  Even
  simpler: put the hash in the QMP greeting.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-09-21 09:56:49 +02:00
Markus Armbruster
2d21291ae6 qapi: Pseudo-type '**' is now unused, drop it
'gen': false needs to stay for now, because netdev_add is still using
it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1442401589-24189-25-git-send-email-armbru@redhat.com>
2015-09-21 09:56:49 +02:00