- 11 7月, 2017 1 次提交
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由 Peter Xu 提交于
MigrateState object is not ready at that time, so we'll get an assertion. Use qemu_global_option() instead. Reported-by: NEduardo Habkost <ehabkost@redhat.com> Suggested-by: NEduardo Habkost <ehabkost@redhat.com> Reviewed-by: NEduardo Habkost <ehabkost@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Fixes: 3df663e5 ("migration: move only_migratable to MigrationState") Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1499242883-2184-2-git-send-email-peterx@redhat.com> Signed-off-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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- 28 6月, 2017 9 次提交
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由 Peter Xu 提交于
When this capability is enabled, QEMU will use the return path even for precopy migration. This is helpful at least in one case when destination failed to load the image while source quited without confirmation. With return path, source will wait for the last response from destination, and if destination fails, it'll fail the migration on source, then the guest can be run again on the source (rather than assuming to be good, then the guest will be lost after source quits). It needs to be enabled explicitly on source, otherwise disabled. Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498472935-14461-1-git-send-email-peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
It'll be strange that the migration object inherits TYPE_DEVICE. Add some explanations to it. Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498634144-26508-1-git-send-email-peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
Now we have some globals that can be configured for migration. Dump them in HMP info migration for better debugging. (we can also use this to monitor whether COMPAT fields are applied correctly on compatible machines) Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-11-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
These two parameters: - MachineState::enforce_config_section - MigrationState::send_configuration are playing similar role here. This patch merges the first one into second, then we'll have a single place to reference whether we need to send the configuration section. I didn't remove the MachineState.enforce_config_section field since when applying that machine property (in machine_set_property()) we haven't yet initialized global properties and migration object. Then, it's still not easy to pass that boolean to MigrationState at such an early time. A natural benefit for current patch is that now we kept the meaning of "enforce-config-section" since it'll still have the highest priority (that's what "enforce" mean I guess). Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-10-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
Move it into MigrationState, revert its meaning and renaming it to send_section_footer, with a property bound to it. Same trick is played like previous patches. Removing savevm_skip_section_footers(). Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-9-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
It was in SaveState but now moved to MigrationState altogether, reverted its meaning, then renamed to "send_configuration". Again, using HW_COMPAT_2_3 for old PC/SPAPR machines, and accel_register_prop() for xen_init(). Removing savevm_skip_configuration(). Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-8-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
One less global variable, and it does only matter with migration. We keep the old "--only-migratable" option, but also now we support: -global migration.only-migratable=true Currently still keep the old interface. Hmm, now vl.c has no way to access migrate_get_current(). Export a function for it to setup only_migratable. Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-7-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
Put it into MigrationState then we can use the properties to specify whether to enable storing global state. Removing global_state_set_optional() since now we can use HW_COMPAT_2_3 for x86/power, and AccelClass.global_props for Xen. Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-6-git-send-email-peterx@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
Let the old man "MigrationState" join the object family. Direct benefit is that we can start to use all the property features derived from current QDev, like: HW_COMPAT_* bits, command line setup for migration parameters (so will never need to set them up each time using HMP/QMP, this is really, really attractive for test writters), etc. I see no reason to disallow this happen yet. So let's start from this one, to see whether it would be anything good. Now we init the MigrationState struct statically in main() to make sure it's initialized after global properties are applied, since we'll use them during creation of the object. No functional change at all. Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NPeter Xu <peterx@redhat.com> Message-Id: <1498536619-14548-5-git-send-email-peterx@redhat.com> Reviewed-by: NEduardo Habkost <ehabkost@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 20 6月, 2017 1 次提交
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由 Fam Zheng 提交于
Previously, dst side will immediately try to lock the write byte upon receiving QEMU_VM_EOF, but at src side, bdrv_inactivate_all() is only done after sending it. If the src host is under load, dst may fail to acquire the lock due to racing with the src unlocking it. Fix this by hoisting the bdrv_inactivate_all() operation before QEMU_VM_EOF. N.B. A further improvement could possibly be done to cleanly handover locks between src and dst, so that there is no window where a third QEMU could steal the locks and prevent src and dst from running. N.B. This commit includes a minor improvement to the error handling by using qemu_file_set_error(). Reported-by: NPeter Maydell <peter.maydell@linaro.org> Signed-off-by: NFam Zheng <famz@redhat.com> Message-id: 20170616160658.32290-1-famz@redhat.com Reviewed-by: NDaniel P. Berrange <berrange@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> [PMM: noted qemu_file_set_error() use in commit as suggested by Daniel] Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
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- 14 6月, 2017 2 次提交
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com>
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由 Peter Xu 提交于
0425dc97 is actually v1 of that patch, but it was accidentally merged (while there was a v2). That will cause problem when we try to migrate to some old QEMUs when return path is not really there. Let's fix it, then squashing this patch with 0425dc97 will be exactly patch content of v2. Fixes: 0425dc97 ("migration: isolate return path on src") Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 13 6月, 2017 8 次提交
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由 Juan Quintela 提交于
Nothing uses it outside of migration.h Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NPeter Xu <peterx@redhat.com>
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由 Juan Quintela 提交于
It don't belong anywhere else, just the global state where everybody can stick other things. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
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由 Juan Quintela 提交于
So, move them there. Notice that we export functions that send commands, not the command themselves. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
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由 Juan Quintela 提交于
Merge them. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
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由 Juan Quintela 提交于
Once there, create populate_disk_info. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com> -- - create populate_disk_info instead of "abusing" populate_ram_info
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由 Eduardo Habkost 提交于
Assigning directly to *errp is not valid, as errp may be NULL, &error_fatal, or &error_abort. Use error_propagate() instead. Cc: Juan Quintela <quintela@redhat.com> Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: NEduardo Habkost <ehabkost@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
There are some places that binded "return path" with postcopy. Let's be prepared for its usage even without postcopy. This patch mainly did this on source side. Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 09 6月, 2017 1 次提交
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由 Kevin Wolf 提交于
Block migration may still access the image during its .save_live_complete_precopy() implementation, so we should only inactivate the image afterwards. Another reason for the change is that inactivating an image fails when there is still a non-device BlockBackend using it, which includes the BBs used by block migration. We want to give block migration a chance to release the BBs before trying to inactivate the image (this will be done in another patch). Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NFam Zheng <famz@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Reviewed-by: NJeff Cody <jcody@redhat.com>
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- 07 6月, 2017 4 次提交
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由 Juan Quintela 提交于
RAM Statistics need to survive migration to make info migrate work, so we need to store them outside of RAMState. As we already have an struct with those fields, just used them. (MigrationStats and XBZRLECacheStats). Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com>
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由 Juan Quintela 提交于
We shouldn't be using memory later than that. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com>
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由 Juan Quintela 提交于
Change it to be consistent with everything else. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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由 Juan Quintela 提交于
They were called consecutively always. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com>
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- 02 6月, 2017 11 次提交
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由 Juan Quintela 提交于
All functions were internal, except blk_mig_init() that is exported in misc.h now. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
All functions are internal except for ram_mig_init(). Create migration/misc.h for this kind of functions. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
Just for the functions exported from tls.c. Notice that we can't remove the migration/migration.h include from tls.c because it access directly MigrationState for the tls params. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Juan Quintela 提交于
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: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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由 Peter Xu 提交于
We were do the shutting off only for postcopy. Now we do this as long as the source return path is there. Moving the cleanup of from_src_file there too. Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Peter Xu 提交于
The return path channel is possibly leaked. Fix it. Signed-off-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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由 Juan Quintela 提交于
So we remove all traces of them. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com> Reviewed-by: NPeter Xu <peterx@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
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- 31 5月, 2017 1 次提交
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由 Juan Quintela 提交于
This removes last trace of migration functions from sysemu/sysemu.h. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
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- 19 5月, 2017 2 次提交
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由 Juan Quintela 提交于
That is the only function that we need from exec.c, and having to include the whole sysemu.h for this. Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> --- /me leans to be less sloppy with copyright notices thanks Dave
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org> --- Minor rearrangements due to rebase
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