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qemu: introduce capability QEMU_CAPS_MIGRATION_BLOCKED_REASONS

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since qemu 6.0, if migration is blocked for some reason, 'query-migrate'
will return an array of error strings describing the migration blockers.
This can be used to check whether there are any devices blocking
migration, etc.

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
This commit is contained in:
Jonathon Jongsma 2022-07-20 18:05:46 +02:00 committed by Laine Stump
parent ccfdc6b029
commit 1e9d84d9f9
13 changed files with 14 additions and 0 deletions
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2
src/qemu/qemu_capabilities.c
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@ -672,6 +672,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
"display-dbus", /* QEMU_CAPS_DISPLAY_DBUS */
"iothread.thread-pool-max", /* QEMU_CAPS_IOTHREAD_THREAD_POOL_MAX */
"usb-host.guest-resets-all", /* QEMU_CAPS_USB_HOST_GUESTS_RESETS_ALL */
"migration.blocked-reasons", /* QEMU_CAPS_MIGRATION_BLOCKED_REASONS */
);
@ -1622,6 +1623,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
{ "chardev-add/arg-type/backend/+qemu-vdagent", QEMU_CAPS_CHARDEV_QEMU_VDAGENT },
{ "query-display-options/ret-type/+dbus", QEMU_CAPS_DISPLAY_DBUS },
{ "object-add/arg-type/+iothread/thread-pool-max", QEMU_CAPS_IOTHREAD_THREAD_POOL_MAX },
{ "query-migrate/ret-type/blocked-reasons", QEMU_CAPS_MIGRATION_BLOCKED_REASONS },
};
typedef struct _virQEMUCapsObjectTypeProps virQEMUCapsObjectTypeProps;

1
src/qemu/qemu_capabilities.h
View File

@ -651,6 +651,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
QEMU_CAPS_DISPLAY_DBUS, /* -display dbus */
QEMU_CAPS_IOTHREAD_THREAD_POOL_MAX, /* -object iothread.thread-pool-max */
QEMU_CAPS_USB_HOST_GUESTS_RESETS_ALL, /* -device usb-host.guest-resets-all */
QEMU_CAPS_MIGRATION_BLOCKED_REASONS, /* query-migrate returns 'blocked-reasons */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;

1
tests/qemucapabilitiesdata/caps_6.0.0.aarch64.xml
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@ -187,6 +187,7 @@
<flag name='virtio-iommu-pci'/>
<flag name='virtio-net.rss'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6000000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>61700242</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.0.0.s390x.xml
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@ -144,6 +144,7 @@
<flag name='memory-backend-file.prealloc-threads'/>
<flag name='virtio-iommu-pci'/>
<flag name='virtio-net.rss'/>
<flag name='migration.blocked-reasons'/>
<version>6000000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>39100242</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml
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@ -229,6 +229,7 @@
<flag name='virtio-iommu-pci'/>
<flag name='virtio-net.rss'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6000000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100242</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml
View File

@ -234,6 +234,7 @@
<flag name='virtio-net.rss'/>
<flag name='chardev.qemu-vdagent'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6001000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100243</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml
View File

@ -199,6 +199,7 @@
<flag name='virtio-net.rss'/>
<flag name='chardev.qemu-vdagent'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6001050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>61700244</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.2.0.ppc64.xml
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@ -193,6 +193,7 @@
<flag name='memory-backend-file.prealloc-threads'/>
<flag name='virtio-iommu-pci'/>
<flag name='virtio-net.rss'/>
<flag name='migration.blocked-reasons'/>
<version>6002000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>42900244</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml
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@ -236,6 +236,7 @@
<flag name='virtio-net.rss'/>
<flag name='chardev.qemu-vdagent'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6002000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100244</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_7.0.0.aarch64.xml
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@ -207,6 +207,7 @@
<flag name='virtio-net.rss'/>
<flag name='chardev.qemu-vdagent'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>6002092</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>61700243</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_7.0.0.ppc64.xml
View File

@ -211,6 +211,7 @@
<flag name='virtio-net.rss'/>
<flag name='chardev.qemu-vdagent'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>7000000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>42900243</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_7.0.0.x86_64.xml
View File

@ -241,6 +241,7 @@
<flag name='chardev.qemu-vdagent'/>
<flag name='display-dbus'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>7000000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100243</microcodeVersion>

1
tests/qemucapabilitiesdata/caps_7.1.0.x86_64.xml
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@ -242,6 +242,7 @@
<flag name='display-dbus'/>
<flag name='iothread.thread-pool-max'/>
<flag name='usb-host.guest-resets-all'/>
<flag name='migration.blocked-reasons'/>
<version>7000050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100244</microcodeVersion>