Commit Graph

3971 Commits

Author SHA1 Message Date
Emanuele Giuseppe Esposito
9ee8a692f1 vhost-user-test: added proper TestServer *dest initialization in test_migrate()
server->bus in _test_server_free() could be NULL, since TestServer
*dest in test_migrate() was not properly initialized like TestServer *s.
Added init_virtio_dev(dest) and uninit_virtio_dev(dest), so the fields
are properly set and when test_server_free(dest); is called, they can
be correctly freed.

The reason for that is init_virtio_dev() calls qpci_init_pc(), that
creates a QPCIBusPC * (returned as QPCIBus *), while test_server_free()
calls qpci_free_pc(), that frees the QPCIBus *. Not calling
init_virtio_dev() would leave the QPCIBus * of TestServer unset.

Problem came out once I modified  pci-pc.c and pci-pc.h, modifying
QPCIBusPC by adding another field before QPCIBus bus. Re-running the
tests showed vhost-user-test failing.

Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
Message-Id: <1530022733-29581-1-git-send-email-esposem@usi.ch>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-16 16:58:16 +02:00
Peter Lieven
8dcd3c9b91 qemu-img: align result of is_allocated_sectors
We currently don't enforce that the sparse segments we detect during convert are
aligned. This leads to unnecessary and costly read-modify-write cycles either
internally in Qemu or in the background on the storage device as nearly all
modern filesystems or hardware have a 4k alignment internally.

This patch modifies is_allocated_sectors so that its *pnum result will always
end at an alignment boundary. This way all requests will end at an alignment
boundary. The start of all requests will also be aligned as long as the results
of get_block_status do not lead to an unaligned offset.

The number of RMW cycles when converting an example image [1] to a raw device that
has 4k sector size is about 4600 4k read requests to perform a total of about 15000
write requests. With this path the additional 4600 read requests are eliminated while
the number of total write requests stays constant.

[1] https://cloud-images.ubuntu.com/releases/16.04/release/ubuntu-16.04-server-cloudimg-amd64-disk1.vmdk

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12 18:24:08 +02:00
John Snow
2d4cb49dda iotests: add test 226 for file driver types
Test that we're rejecting what we ought to for file,
host_driver and host_cdrom drivers. Test that we're
seeing the deprecated message for block and chardevs
on the file driver.

Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12 18:24:08 +02:00
Fam Zheng
2f9d4083f7 iotests: nbd: Stop qemu-nbd before remaking image
197 is one example where _make_test_img is used twice without stopping
the NBD server in between. An error will occur like this:

    @@ -26,9 +26,13 @@

     === Partial final cluster ===

    +qemu-img: TEST_DIR/t.IMGFMT: Failed to get "resize" lock
    +Is another process using the image?
     Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024
    +Failed to find an available port: Address already in use
     read 1024/1024 bytes at offset 0

Patch _make_test_img to stop the old qemu-nbd before starting a new one,
which fixes this problem, and similarly 215.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12 18:24:08 +02:00
Fam Zheng
0e1a582750 iotests: 153: Fix dead code
This step was left behind my mistake. As suggested by the echoed text,
the intention was to test two devices with the same image, with
different options. The behavior should be the same as two QEMU
processes. Complete it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12 18:24:08 +02:00
Peter Maydell
7851f1a706 Block layer patches:
- Copy offloading fixes for when the copy increases the image size
 - Temporary revert of the removal of deprecated -drive options
 - Fix request serialisation in the image fleecing scenario
 - Fix copy-on-read crash with unaligned image size
 - Fix another drain crash
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- Copy offloading fixes for when the copy increases the image size
- Temporary revert of the removal of deprecated -drive options
- Fix request serialisation in the image fleecing scenario
- Fix copy-on-read crash with unaligned image size
- Fix another drain crash

# gpg: Signature made Tue 10 Jul 2018 16:37:52 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (24 commits)
  block: Use common write req handling in truncate
  block: Fix bdrv_co_truncate overlap check
  block: Use common req handling in copy offloading
  block: Use common req handling for discard
  block: Fix handling of image enlarging write
  block: Extract common write req handling
  block: Use uint64_t for BdrvTrackedRequest byte fields
  block: Use BdrvChild to discard
  block: Add copy offloading trace points
  block: Prefix file driver trace points with "file_"
  Revert "block: Remove deprecated -drive geometry options"
  Revert "block: Remove deprecated -drive option addr"
  Revert "block: Remove deprecated -drive option serial"
  Revert "block: Remove dead deprecation warning code"
  block/blklogwrites: Make sure the log sector size is not too small
  qapi/block-core.json: Add missing documentation for blklogwrites log-append option
  block/backup: fix fleecing scheme: use serialized writes
  block: add BDRV_REQ_SERIALISING flag
  block: split flags in copy_range
  block/io: fix copy_range
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-10 17:28:29 +01:00
Peter Xu
3e81f73c7a tests: hide stderr for postcopy recovery test
We dumped something when network failure happens.  We should avoid those
messages to be dumped when running the tests:

  $ ./tests/migration-test -p /x86_64/migration/postcopy/recovery
  /x86_64/migration/postcopy/recovery: qemu-system-x86_64: check_section_footer: Read section footer failed: -5
  qemu-system-x86_64: Detected IO failure for postcopy. Migration paused.
  qemu-system-x86_64: Detected IO failure for postcopy. Migration paused.
  OK

After the patch:

  $ ./tests/migration-test -p /x86_64/migration/postcopy/recovery
  /x86_64/migration/postcopy/recovery: OK

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-11-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 15:23:22 +01:00
Peter Xu
d5f496407d tests: add postcopy recovery test
Test the postcopy recovery procedure by emulating a network failure
using migrate-pause command.

Tested-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-10-peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 15:20:08 +01:00
Peter Xu
2f6d313836 tests: introduce wait_for_migration_status()
It's generalized from wait_for_migration_complete() to allow us to wait
for any migration status besides failure.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-9-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 15:18:03 +01:00
Peter Xu
2f7074c6fd tests: introduce migrate_query*() helpers
Introduce helpers to query migration states and use it.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-8-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 15:18:03 +01:00
Peter Xu
7e1d74271c tests: allow migrate() to take extra flags
For example, we can pass in '"resume": true' to resume a migration.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-7-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10 15:18:03 +01:00
Peter Xu
d131662a1a tests: introduce migrate_postcopy_* helpers
Separate the old postcopy UNIX socket test into three steps, provide a
helper for each step.  With these helpers, we can do more compliated
tests like postcopy recovery, while keep the codes shared.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180710091902.28780-6-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Fix up merge with 2e295789 / Skip tests for ppc tcg
2018-07-10 15:17:40 +01:00
Cornelia Huck
6703db131f Revert "block: Remove deprecated -drive geometry options"
This reverts commit a7aff6dd10.

Hold off removing this for one more QEMU release (current libvirt
release still uses it.)

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 14:36:12 +02:00
Cornelia Huck
44e8b4689c Revert "block: Remove deprecated -drive option serial"
This reverts commit b008326744.

Hold off removing this for one more QEMU release (current libvirt
release still uses it.)

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 14:36:11 +02:00
Fam Zheng
e79c4cd190 iotests: 222: Don't run with luks
Luks needs special parameters to operate the image. Since this test is
focusing on image fleecing, skip skip that format.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 11:55:11 +02:00
Kevin Wolf
b0ddcbbb36 block: Fix copy-on-read crash with partial final cluster
If the virtual disk size isn't aligned to full clusters,
bdrv_co_do_copy_on_readv() may get pnum == 0 before having the full
cluster completed, which will let it run into an assertion failure:

qemu-io: block/io.c:1203: bdrv_co_do_copy_on_readv: Assertion `skip_bytes < pnum' failed.

Check for EOF, assert that we read at least as much as the read request
originally wanted to have (which is true at EOF because otherwise
bdrv_check_byte_request() would already have returned an error) and
return success early even though we couldn't copy the full cluster.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 10:36:15 +02:00
Kevin Wolf
b994c5bc51 test-bdrv-drain: Test bdrv_append() to drained node
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10 10:36:15 +02:00
Max Reitz
85456e0d16 iotests: Add VMDK backing file correlation test
This new test verifies that VMDK backing file reads fail when the
backing file has a non-matching CID.  This includes non-VMDK backing
files.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20180702210721.4847-3-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-07-09 19:43:24 +02:00
Peter Maydell
086ede32af ptimer: Add TRIGGER_ONLY_ON_DECREMENT policy option
The CMSDK timer behaviour is that an interrupt is triggered when the
counter counts down from 1 to 0; however one is not triggered if the
counter is manually set to 0 by a guest write to the counter register.
Currently ptimer can't handle this; add a policy option to allow
a ptimer user to request this behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 20180703171044.9503-2-peter.maydell@linaro.org
2018-07-09 14:51:34 +01:00
Dr. David Alan Gilbert
5fd4a9c973 tests/migration: Skip tests for ppc tcg
PPC tcg seems to be failing migration tests quite regularly;
we believe this is TCG bugs in dirty bit updating; it's
not clear why PPC fails more but lets skip for the moment.

$ ./tests/migration-test
/ppc64/migration/deprecated: OK
/ppc64/migration/bad_dest: Skipping test: kvm_hv not available OK
/ppc64/migration/postcopy/unix: Skipping test: kvm_hv not available OK
/ppc64/migration/precopy/unix: Skipping test: kvm_hv not available OK

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-id: 20180706143105.93472-1-dgilbert@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-06 16:18:31 +01:00
Peter Maydell
cee35138b5 Code coverage and other build tweaks
- revert 208ecb3e (and drop filter for mingw, tweak for check-tcg)
   - some travis speed-ups
   - modernise code coverage support
   - docker image cleanups
   - clean-up binfmt_misc docker infrastructure
   - add debian-powerpc-user-cross image for ppc32 build
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-code-coverage-and-build-tweaks-050718-3' into staging

Code coverage and other build tweaks

  - revert 208ecb3e (and drop filter for mingw, tweak for check-tcg)
  - some travis speed-ups
  - modernise code coverage support
  - docker image cleanups
  - clean-up binfmt_misc docker infrastructure
  - add debian-powerpc-user-cross image for ppc32 build

# gpg: Signature made Thu 05 Jul 2018 17:00:02 BST
# gpg:                using RSA key FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-code-coverage-and-build-tweaks-050718-3:
  docker: add linux-user powered cross builder for QEMU
  docker: add special rule for deboostrapped images
  docker: add special handling for FROM:debian-%-user targets
  docker: debian-bootstrap.pre allow customising of variant/url
  docker: drop QEMU build-dep from bootstrap
  docker: Do not run tests in 'intermediate' images
  docker: Clean the MXE base image
  docker: ubuntu: Use SDL2
  docker: ubuntu: Update the package list before installing new ones
  linux-user: add gcov support to preexit_cleanup
  linux-user: introduce preexit_cleanup
  build-system: add coverage-report target
  build-system: add clean-coverage target
  travis: add gcovr summary for GCOV build
  docker: add gcovr to travis image
  .gitignore: add .gcov files
  build-system: remove per-test GCOV reporting
  travis: test out-of-tree builds
  travis: do not waste time cloning unused submodules
  Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-05 18:24:28 +01:00
Alex Bennée
19c9a18f45 docker: add linux-user powered cross builder for QEMU
We can't use cross compilers in the current Debian stable and Debian
sid is sketchy as hell. So for powerpc fall back to dog-fooding our
own linux-user to do the build.

As we can only build the base image with a suitably configured
source tree we fall back to checking for its existence when we can't
build it from scratch. However this does mean you don't have to keep
a static powerpc-linux-user in your active configuration just to
update the cross build image.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 16:57:39 +01:00
Alex Bennée
dc338fdb07 docker: add special rule for deboostrapped images
We might as well have a custom rule for this. For one thing the
dependencies are different. As the primary dependency for
docker-image-% could never be docker-image-debian-bootstrap we can
drop that test in the main rule as well.

Missing EXECUTABLE, DEB_ARCH and DEB_TYPE are treated as hard faults
now. We also error out if the EXECUTABLE file isn't there. We should
really do this with a dependency on any source rules but currently
subdir-FOO-linux-user isn't enough on a clean build.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
547cb45ea3 docker: add special handling for FROM:debian-%-user targets
These will have been build with debootstrap so we need to check
against the debian-bootstrap dockerfile. This does mean sticking to
debian-FOO-user as the naming conventions for boot-strapped images.
The actual cross image is built on top.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
300cf467fd docker: debian-bootstrap.pre allow customising of variant/url
We default to the buildd variant as most of our images are for
building. However lets give the user the ability to specify "minbase"
if they want to create a simple base image for experimentation.

Allowing the tweaking of DEB_URL means we can also bootstrap other
Debian based OS's. For example:

  make docker-binfmt-image-debian-ubuntu-bionic-arm64 \
       DEB_ARCH=arm64 DEB_TYPE=bionic \
       DEB_VARIANT=minbase DEB_URL=http://ports.ubuntu.com/ \
       EXECUTABLE=./aarch64-linux-user/qemu-aarch64

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
e6bfdeca8b docker: drop QEMU build-dep from bootstrap
This is best done with any child images that actually need it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
272e551b43 docker: Do not run tests in 'intermediate' images
We can still build the DOCKER_INTERMEDIATE_IMAGES images,
but they won't appear in 'make test*@$IMAGE'.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
48feb682db docker: Clean the MXE base image
Using the duplicated same package is confusing.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
daf999f77a docker: ubuntu: Use SDL2
Do not test the deprecated API versions (see cabd358407).
Debian MXE MinGW cross images are already using SDL2.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Philippe Mathieu-Daudé
beac6a98f6 docker: ubuntu: Update the package list before installing new ones
Since docker caches the different layers, updating the package
list does not invalidate the previous "apt-get update" layer,
and it is likely "apt-get install" hits an outdated repository.

See https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#apt-get

This fixes:

  $ make docker-image-ubuntu V=1
  ./tests/docker/docker.py build qemu:ubuntu tests/docker/dockerfiles/ubuntu.docker   --add-current-user
  Sending build context to Docker daemon  3.072kB
  [...]
  E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mesa/libgles2-mesa_17.0.7-0ubuntu0.16.04.2_amd64.deb  404  Not Found
  E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/m/mesa/libgles2-mesa-dev_17.0.7-0ubuntu0.16.04.2_amd64.deb  404  Not Found
  E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
  The command '/bin/sh -c apt-get -y install $PACKAGES' returned a non-zero code: 100
  tests/docker/Makefile.include:40: recipe for target 'docker-image-ubuntu' failed
  make: *** [docker-image-ubuntu] Error 1

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-05 15:59:41 +01:00
Alex Bennée
95f7aabf49 docker: add gcovr to travis image
Useful for debugging if nothing else as the gcovr on the Travis images
are a little old.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-05 15:59:41 +01:00
Alex Bennée
31d2dda3c4 build-system: remove per-test GCOV reporting
I'm not entirely sure who's using this information and certainly in a
CI environment it just washes over as additional noise. Later patches
will provide new reporting options so a user who wants to analyse
individual tests will be able to use that to get the information.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-07-05 15:59:41 +01:00
Alex Bennée
2b1f35b9a8 Revert "Makefile: Rename TARGET_DIRS to TARGET_LIST"
This reverts commit 208ecb3e1a. This was
causing problems by making DEF_TARGET_LIST pointless and having to
jump through hoops to build on mingw with a dully enabled config.
This includes a change to fix the per-guest TCG test probe which was
added after 208ecb3 and used TARGET_LIST.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
2018-07-05 15:59:41 +01:00
Peter Maydell
1daf14ec9e Block layer patches:
- qcow2: Use worker threads for compression to improve performance of
   'qemu-img convert -W' and compressed backup jobs
 - blklogwrites: New filter driver to log write requests to an image in
   the dm-log-writes format
 - file-posix: Fix image locking during image creation
 - crypto: Fix memory leak in error path
 - Error out instead of silently truncating node names
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches:

- qcow2: Use worker threads for compression to improve performance of
  'qemu-img convert -W' and compressed backup jobs
- blklogwrites: New filter driver to log write requests to an image in
  the dm-log-writes format
- file-posix: Fix image locking during image creation
- crypto: Fix memory leak in error path
- Error out instead of silently truncating node names

# gpg: Signature made Thu 05 Jul 2018 11:24:33 BST
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  file-posix: Unlock FD after creation
  file-posix: Fix creation locking
  block/blklogwrites: Add an option for the update interval of the log superblock
  block/blklogwrites: Add an option for appending to an old log
  block/blklogwrites: Change log_sector_size from int64_t to uint64_t
  block/crypto: Fix memory leak in create error path
  block: Don't silently truncate node names
  block: Add blklogwrites
  block: Move two block permission constants to the relevant enum
  qcow2: add compress threads
  qcow2: refactor data compression
  qemu-img: allow compressed not-in-order writes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-05 15:53:04 +01:00
Peter Maydell
4fd1cbaf14 Monitor patches for 2018-07-03
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Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2018-07-03-v2' into staging

Monitor patches for 2018-07-03

# gpg: Signature made Tue 03 Jul 2018 22:20:13 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-monitor-2018-07-03-v2: (32 commits)
  qapi: Polish command flags documentation in qapi-code-gen.txt
  monitor: Improve some comments
  qmp: Clean up capability negotiation after commit 02130314d8
  qobject: Let qobject_from_jsonf() fail instead of abort
  qmp: Switch timestamp_put() to qdict_from_jsonf_nofail()
  qmp: Add some comments around null responses
  qmp: Simplify monitor_qmp_respond()
  qmp: Replace get_qmp_greeting() by qmp_greeting()
  qmp: Replace monitor_json_emitter{,raw}() by qmp_{queue,send}_response()
  qmp: Use QDict * instead of QObject * for response objects
  qmp: De-duplicate error response building
  qobject: New qdict_from_jsonf_nofail()
  monitor: Peel off @mon_global wrapper
  monitor: Rename use_io_thr to use_io_thread
  qmp: Don't let JSON errors jump the queue
  qmp: Don't let malformed in-band commands jump the queue
  tests/qmp-test: Demonstrate QMP errors jumping the queue
  qmp: Simplify code around monitor_qmp_dispatch_one()
  qmp: Always free QMPRequest with qmp_request_free()
  qmp: Revert change to handle_qmp_command tracepoint
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-05 11:25:14 +01:00
Peter Maydell
5dafaf4fbc QAPI patches for 2018-07-03
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2018-07-03' into staging

QAPI patches for 2018-07-03

# gpg: Signature made Tue 03 Jul 2018 21:52:55 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2018-07-03:
  qapi: add conditions to SPICE type/commands/events on the schema
  qapi: add conditions to VNC type/commands/events on the schema
  qapi: add 'If:' section to generated documentation
  qapi-types: add #if conditions to types & visitors
  qapi/events: add #if conditions to events
  qapi/commands: add #if conditions to commands
  qapi-introspect: add preprocessor conditions to generated QLit
  qapi-introspect: modify to_qlit() to append ',' on level > 0
  qapi: add #if/#endif helpers
  qapi: mcgen() shouldn't indent # lines
  qapi: add 'ifcond' to visitor methods
  qapi: leave the ifcond attribute undefined until check()
  qapi: pass 'if' condition into QAPISchemaEntity objects
  qapi: add 'if' to top-level expressions

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-05 10:31:36 +01:00
Kevin Wolf
824808dd77 block: Don't silently truncate node names
If the user passes a too long node name string, we silently truncate it
to fit into BlockDriverState.node_name, i.e. to 31 characters. Apart
from surprising the user when the node has a different name than
requested, this also bypasses the check for duplicate names, so that the
same name can be assigned to multiple nodes.

Fix this by just making too long node names an error.

Reported-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-05 10:29:19 +02:00
Peter Maydell
8beb8cc64d qemu-ga patch queue for soft-freeze
* add systemd suspend support
 * add used/total space stats for guest-get-fsinfo
 * fixes for guest-get-fsinfo over PCI bridges
 * MSI installer and schema doc fixes
 * guard against unbounded allocations in guest-file-read
 * add some additional qga test cases
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2018-07-03-tag' into staging

qemu-ga patch queue for soft-freeze

* add systemd suspend support
* add used/total space stats for guest-get-fsinfo
* fixes for guest-get-fsinfo over PCI bridges
* MSI installer and schema doc fixes
* guard against unbounded allocations in guest-file-read
* add some additional qga test cases

# gpg: Signature made Tue 03 Jul 2018 21:45:32 BST
# gpg:                using RSA key 3353C9CEF108B584
# 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>"
# Primary key fingerprint: CEAC C9E1 5534 EBAB B82D  3FA0 3353 C9CE F108 B584

* remotes/mdroth/tags/qga-pull-2018-07-03-tag:
  qga: removing bios_supports_mode
  qga: systemd hibernate/suspend/hybrid-sleep support
  qga: removing switch statements, adding run_process_child
  qga: guest_suspend: decoupling pm-utils and sys logic
  qga: bios_supports_mode: decoupling pm-utils and sys logic
  qga: refactoring qmp_guest_suspend_* functions
  qemu-ga: make get-fsinfo work over pci bridges
  qga-win: Fixing msi upgrade disallow in WiX file
  qga/schema: fix documentation for GuestOSInfo
  test-qga: add trivial tests for some commands
  qga-win: add driver path usage to GuestFilesystemInfo
  qga: add mountpoint usage info to GuestFilesystemInfo
  qga: check bytes count read by guest-file-read
  qga: unset frozen state if no mount points are frozen

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-05 08:21:25 +01:00
Markus Armbruster
d43b16945a qmp: Use QDict * instead of QObject * for response objects
By using the more specific type, we get fewer downcasts.  The
downcasts are safe, but not obviously so, at least not locally.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-24-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
69240fe62d qmp: Don't let malformed in-band commands jump the queue
handle_qmp_command() reports certain errors right away.  This is wrong
when OOB is enabled, because the errors can "jump the queue" then, as
the previous commit demonstrates.

To fix, we need to delay errors until dispatch.  Do that for semantic
errors, mostly by reverting ill-advised parts of commit cf869d5317
"qmp: support out-of-band (oob) execution".  Bonus: doesn't run
qmp_dispatch_check_obj() twice, once in handle_qmp_command(), and
again in do_qmp_dispatch().  That's also due to commit cf869d5317.

The next commit will fix queue jumping for syntax errors.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-18-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
e8f4a22168 tests/qmp-test: Demonstrate QMP errors jumping the queue
When OOB is enabled, out-of-band commands are executed right away,
everything else is queued.  This lets out-of-band commands "jump the
queue".

However, certain errors are always reported right away, and therefore
can jump the queue even when the erroneous input does not request
out-of-band execution.  These errors are pretty unlikely to occur in
production, but it's wrong all the same.  Mark FIXME.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180703085358.13941-17-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
00ecec151d qmp: Redo how the client requests out-of-band execution
Commit cf869d5317 "qmp: support out-of-band (oob) execution" added a
general mechanism for command-independent arguments just for an
out-of-band flag:

    The "control" key is introduced to store this extra flag.  "control"
    field is used to store arguments that are shared by all the commands,
    rather than command specific arguments.  Let "run-oob" be the first.

However, it failed to reject unknown members of "control".  For
instance, in QMP command

    {"execute": "query-name", "id": 42, "control": {"crap": true}}

"crap" gets silently ignored.

Instead of fixing this, revert the general "control" mechanism
(because YAGNI), and do it the way I initially proposed, with key
"exec-oob".  Simpler code, simpler interface.

An out-of-band command

    {"execute": "migrate-pause", "id": 42, "control": {"run-oob": true}}

becomes

    {"exec-oob": "migrate-pause", "id": 42}

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-13-armbru@redhat.com>
[Commit message typo fixed]
2018-07-03 23:18:56 +02:00
Markus Armbruster
674ed7228f qmp qemu-ga: Fix qemu-ga not to accept "control"
Commit cf869d5317 "qmp: support out-of-band (oob) execution"
accidentally made qemu-ga accept and ignore "control".  Fix that.

Out-of-band execution in a monitor that doesn't support it now fails
with

    {"error": {"class": "GenericError", "desc": "QMP input member 'control' is unexpected"}}

instead of

    {"error": {"class": "GenericError", "desc": "Please enable out-of-band first for the session during capabilities negotiation"}}

The old description is suboptimal when out-of-band cannot not be
enabled, or the command doesn't support out-of-band execution.

The new description is a bit unspecific, but it'll do.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-12-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
d4d7ed731c tests/test-qga: Demonstrate the guest-agent ignores "control"
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-11-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
0fa39d0b03 qmp qemu-ga: Revert change that accidentally made qemu-ga accept "id"
Commit cf869d5317 "qmp: support out-of-band (oob) execution" changed
how we check "id":

    Note that in the patch I exported qmp_dispatch_check_obj() to be
    used to check the request earlier, and at the same time allowed
    "id" field to be there since actually we always allow that.

The part after "and" is ill-advised: it makes qemu-ga accept and
ignore "id".  Revert.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-10-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
b5f8431040 tests/test-qga: Demonstrate the guest-agent ignores "id"
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-9-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
2970b4461f tests/qmp-test: Test in-band command doesn't overtake
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-7-armbru@redhat.com>
2018-07-03 23:18:56 +02:00
Markus Armbruster
97ca0712c8 qmp: Get rid of x-oob-test command
tests/qmp-test tests an out-of-band command overtaking a slow in-band
command.  To do that, it needs:

1. An in-band command that *reliably* takes long enough to be
   overtaken.

2. An out-of-band command to do the overtaking.

3. To avoid delays, a way to make the in-band command complete quickly
   after it was overtaken.

To satisfy these needs, commit 469638f9cb provides the rather
peculiar oob-capable QMP command x-oob-test:

* With "lock": true, it waits for a global semaphore.

* With "lock": false, it signals the global semaphore.

To satisfy 1., the test runs x-oob-test in-band with "lock": true.
To satisfy 2. and 3., it runs x-oob-test out-of-band with "lock": false.

Note that waiting for a semaphore violates the rules for oob-capable
commands.  Running x-oob-test with "lock": true hangs the monitor
until you run x-oob-test with "lock": false on another monitor (which
you might not have set up).

Having an externally visible QMP command that may hang the monitor is
not nice.  Let's apply a little more ingenuity to the problem.  Idea:
have an existing command block on reading a FIFO special file, unblock
it by opening the FIFO for writing.

For 1., use

    {"execute": "blockdev-add",  "id": ID1,
     "arguments": {
        "driver": "blkdebug", "node-name": ID1, "config": FIFO,
        "image": { "driver": "null-co"}}}

where ID1 is an arbitrary string, and FIFO is the name of the FIFO.

For 2., use

    {"execute": "migrate-pause", "id": ID2, "control": {"run-oob": true}}

where ID2 is a different arbitrary string.  Since there's no migration
to pause, the command will fail, but that's fine; instant failure is
still a test of out-of-band responses overtaking in-band commands.

For 3., open FIFO for writing.

Drop QMP command x-oob-test.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180703085358.13941-6-armbru@redhat.com>
[Error checking tweaked]
2018-07-03 23:15:43 +02:00
Tomáš Golembiovský
509b97fd07 test-qga: add trivial tests for some commands
These commands did not get their tests in the original commits:
- guest-get-host-name
- guest-get-timezone
- guest-get-users

Trivial tests that mostly only call the commands were added.

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
* replace QDECREF() with qobject_unref()
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-07-03 15:20:26 -05:00
Marc-André Lureau
901a34a400 qapi: add 'If:' section to generated documentation
The documentation is generated only once, and doesn't know C
pre-conditions. Add 'If:' sections for top-level entities.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180703155648.11933-13-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-03 18:38:54 +02:00