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2017-09-27migration: Route more error pathsDr. David Alan Gilbert1-3/+6
vmstate_save_state is called in lots of places. Route error returns from the easier cases back up; there are lots of more complex cases where their own error paths need fixing. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-7-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Commit message fix up as Peter's review
2017-09-27migration: pre_save return intDr. David Alan Gilbert1-1/+3
Modify the pre_save method on VMStateDescription to return an int rather than void so that it potentially can fail. Changed zillions of devices to make them return 0; the only case I've made it return non-0 is hw/intc/s390_flic_kvm.c that already had an error_report/return case. Note: If you add an error exit in your pre_save you must emit an error_report to say why. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-2-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-13migration: Move migration.h to migration/Juan Quintela1-1/+1
Nothing uses it outside of migration.h Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2017-06-13migration: Move constants to savevm.hJuan Quintela1-0/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2017-06-01migration: Split qemu-file.hJuan Quintela1-1/+2
Split the file into public and internal interfaces. I have to rename the external one because we can't have two include files with the same name in the same directory. Build system gets confused. The only exported functions are the ones that handle basic types. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18migration: Remove qemu-file.h from vmstate.hJuan Quintela1-0/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> -- minor rearangements due to the rebase
2017-05-18migration: Export qemu-file-channel.c functions in its own fileJuan Quintela1-0/+1
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-28tests/test-vmstate.c: test array of ptr to primitiveHalil Pasic1-0/+48
Let's have a test for ptr arrays to some primitive type with some not-null and null ptrs intermixed. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170222160119.52771-6-pasic@linux.vnet.ibm.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-02-28tests/test-vmstate.c: test array of ptr with nullHalil Pasic1-17/+57
Add test for VMSTATE_ARRAY_OF_POINTER_TO_STRUCT with an array containing some null pointer. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170222160119.52771-5-pasic@linux.vnet.ibm.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Fixed type case in assert to uintptr_t rather than uint64_t
2017-02-16test-vmstate: remove yield_until_fd_readablePaolo Bonzini1-11/+0
The function is not needed anymore now that migration is built on top of QIOChannel. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-13tests/migration: Add test for VMSTATE_WITH_TMPDr. David Alan Gilbert1-6/+92
Add a test for VMSTATE_WITH_TMP to tests/test-vmstate.c Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20170203160651.19917-4-dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-01-24tests/migration: Add test for QTAILQ migrationJianjun Duan1-0/+147
Add a test for QTAILQ migration to tests/test-vmstate.c. Signed-off-by: Jianjun Duan <duanj@linux.vnet.ibm.com> Message-Id: <1484852453-12728-4-git-send-email-duanj@linux.vnet.ibm.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2016-11-14tests/test-vmstate.c: add array of pointer to structHalil Pasic1-0/+74
Increase test coverage by adding tests for the macro VMSTATE_ARRAY_OF_POINTER_TO_STRUCT. Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2016-11-14tests/test-vmstate.c: add save_buffer util funcHalil Pasic1-12/+11
Let us de-duplicate some code by introducing an utility function for saving a chunk of bytes (used when testing load based on wire). Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com> Reviewed-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2016-09-08tests: fix test-vmstate leaksMarc-André Lureau1-2/+6
Spotted thanks to ASAN. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-06-07tests: Remove unnecessary glib.h includesPeter Maydell1-1/+0
Remove glib.h includes, as it is provided by osdep.h. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-05-26migration: convert savevm to use QIOChannel for writing to filesDaniel P. Berrange1-1/+10
Convert the exec savevm code to use QIOChannel and QEMUFileChannel, instead of the stdio APIs. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <1461751518-12128-19-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-05-26migration: remove use of qemu_bufopen from vmstate testsDaniel P. Berrange1-31/+13
Some of the test-vmstate.c test cases use a temporary file while others use a memory buffer. To facilitate the future removal of the qemu_bufopen() function, convert all the tests to use a temporary file. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <1461751518-12128-4-git-send-email-berrange@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-02-16tests: Clean up includesPeter Maydell1-0/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Eric Blake <eblake@redhat.com>
2015-10-20coroutine: move into libqemuutil.a libraryDaniel P. Berrange1-1/+1
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>
2015-02-05migration: Append JSON description of migration streamAlexander Graf1-3/+3
One of the annoyances of the current migration format is the fact that it's not self-describing. In fact, it's not properly describing at all. Some code randomly scattered throughout QEMU elaborates roughly how to read and write a stream of bytes. We discussed an idea during KVM Forum 2013 to add a JSON description of the migration protocol itself to the migration stream. This patch adds a section after the VM_END migration end marker that contains description data on what the device sections of the stream are composed of. This approach is backwards compatible with any QEMU version reading the stream, because QEMU just stops reading after the VM_END marker and ignores any data following it. With an additional external program this allows us to decipher the contents of any migration stream and hopefully make migration bugs easier to track down. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-01-16Tests: QEMUSizedBuffer/QEMUBufferYang Hongyang1-12/+8
Modify some of tests/test-vmstate.c due to qemu_bufopen() change. If you create a QEMUSizedBuffer yourself, you have to explicitly free it. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Juan Quintela <quintela@redhat.com> Cc: Amit Shah <amit.shah@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2014-10-14Tests: QEMUSizedBuffer/QEMUBufferDr. David Alan Gilbert1-36/+38
Modify some of tests/test-vmstate.c to use the in memory file based on QEMUSizedBuffer to provide basic testing of QEMUSizedBuffer and the associated memory backed QEMUFile type. Only some of the tests are changed so that the fd backed QEMUFile is still tested. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-07-18tests: Add missing 'static' attributes (fix warnings from smatch)Stefan Weil1-2/+2
Smatch also complains about 0 used for pointers, so replace those by NULL in test-visitor-serialization.c, too. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-06-23vmstate: Refactor & increase tests for primitive typesJuan Quintela1-61/+212
This commit refactor the simple tests to test all integer types. We move to hex because it is easier to read values of different types. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2014-06-16vmstate: Refactor opening of filesJuan Quintela1-19/+19
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela1-6/+3
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2014-01-13tests: Some unit tests for vmstate.cEduardo Habkost1-0/+357
* Basic load/save tests * Tests for loading older versions * Tests for .field_exists() handling Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
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