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2011-10-21simplify main loop functionsPaolo Bonzini
Provide a clean example of how to use the main loop in the tools. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21Revert to a hand-made select loopPaolo Bonzini
This reverts commit c82dc29a9112f34e0a51cad9a412cf6d9d05dfb2 and 4d88a2ac8643265108ef1fb47ceee5d7b28e19f2. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21main-loop: create main-loop.cPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21main-loop: create main-loop.hPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: do not use RunState change handlersPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: move more stuff out of qemu-timer.cPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: use atexit for quit_timersPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: do not refer to runstate_is_running()Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: move icount to cpus.cPaolo Bonzini
None of this is needed by tools, and most of it can even be made static inside cpus.c. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: more clock functionsPaolo Bonzini
These will be used when moving icount accounting to cpus.c. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: move common code to qemu_rearm_alarm_timerPaolo Bonzini
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21qemu-timer: remove active_timers arrayPaolo Bonzini
Embed the list in the QEMUClock instead. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-21remove unused functionPaolo Bonzini
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-20hw/9pfs: Fix broken compilation caused by wrong trace eventsStefan Weil
Commit c572f23a3e7180dbeab5e86583e43ea2afed6271 added trace events with mismatching format string and arguments. gcc reports these errors: In file included from trace.c:2:0: trace.h: In function ‘trace_v9fs_attach’: trace.h:2850:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_wstat’: trace.h:3039:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_mkdir’: trace.h:3088:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_mkdir_return’: trace.h:3095:9: error: too many arguments for format [-Werror=format-extra-args] Fix the format strings and also use %u instead of %d for unsigned values in the changed strings. There are more minor errors of this kind which I did not fix because that would make the review more difficult. v2: Fixed position of } for v9fs_mkdir_return. Cc: Harsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20Merge remote-tracking branch 'quintela/migration-pull' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'aneesh/for-upstream-6' into stagingAnthony Liguori
Conflicts: trace-events
2011-10-20migration: make migration-{tcp,unix} consistentJuan Quintela
Files are almost identical in functionality, just remove the differences that make no sense. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: propagate error correctlyJuan Quintela
unix and tcp outgoing migration have error values, but didn't returned it. Make them return the error. Notice that EINPROGRESS & EWOULDBLOCK are not considered errors as call will be retry later. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Don't use callback on file defining itJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Make state definitions localJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Export a function that tells if the migration has finished correctlyJuan Quintela
This will allow us to hide the state values. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Pass MigrationState in migration notifiersJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Use bandwidth_limit directlyJuan Quintela
Now that current_migration always exist, there is no reason for max_throotle variable. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: create accessor for current_migrationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Move exported functions to the end of the fileJuan Quintela
This means we can remove the two forward declarations. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Remove migration cancel() callbackJuan Quintela
It is used only in one place Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Remove get_status() accessorJuan Quintela
It is only used inside migration.c, and fields on that struct are accessed all around the place on that file. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Our release callback was just freeJuan Quintela
We called it from a single place, and always with state != MIG_STATE_ACTIVE. Just remove the whole callback. For users of the notifier, notice that this is exactly the case where they don't care, we are just freeing the state from previous failed migration (it can't be a sucessful one, otherwise we would not be running on that machine in the first place). Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Introduce migrate_fd_completed() for consistencyJuan Quintela
This function is a bit different of the others that change the state, in the sense that if migrate_fd_cleanup() returns an error, it set the status to error, not completed. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Refactor and simplify error checking in migrate_fd_put_readyJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Introduce MIG_STATE_SETUPJuan Quintela
Use MIG_STATE_ACTIVE only when migration has really started. Use this new state to setup migration parameters. Change defines for an anonymous struct. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: move migrate_new to do_migrateJuan Quintela
Once there, remove all parameters that don't need to be passed to *start_outgoing_migration() functions Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Make all posible migration functions staticJuan Quintela
I have to move two functions postions to avoid forward declarations Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Refactor MigrationState creationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Rename FdMigrationState MigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Fold MigrationState into FdMigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Use FdMigrationState instead of MigrationState when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Make *start_outgoing_migration return FdMigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: make *save_live return errorsJuan Quintela
Make *save_live() return negative values when there is one error, and updates all callers to check for the error. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: use qemu_file_get_error() return value when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20savevm: Rename has_error to last_error fieldJuan Quintela
Now the field contains the last error name, so rename acordingly. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: rename qemu_file_has_error to qemu_file_get_errorJuan Quintela
Now the function returned errno, so it is better the new name. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: return real error codeJuan Quintela
make functions propagate errno, instead of just using -EIO. Add a comment about what are the return value of qemu_savevm_state_iterate(). Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: change has_error to contain errno valuesJuan Quintela
We normally already have an errno value. When not, abuse EIO. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: set error if select return one errorJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: don't "write" when migration is not activeJuan Quintela
If migration is not active, just ignore writes. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20buffered_file: reuse QEMUFile has_error fieldJuan Quintela
Instead of having two has_error fields in QEMUFile & QEMUBufferedFile, reuse the 1st one. Notice that the one in buffered_file is only set after a file operation. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20buffered_file: Use right "opaque"Juan Quintela
buffered_close 's' variable is of type QEMUFileBuffered, and wait_for_unfreeze() expect to receive a MigrationState, that 'coincidentaly' is s->opaque. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: If there is one error, it makes no sense to continueJuan Quintela
Once there, add a comment about what each error mean. Signed-off-by: Juan Quintela <quintela@redhat.com>
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