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Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.8' into staging
Migration bits from the COLO project
# gpg: Signature made Sun 30 Oct 2016 10:39:55 GMT
# gpg: using RSA key 0xEB0B4DFC657EF670
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg: aka "Amit Shah <amit@kernel.org>"
# gpg: aka "Amit Shah <amitshah@gmx.net>"
# Primary key fingerprint: 48CA 3722 5FE7 F4A8 B337 2735 1E9A 3B5F 8540 83B6
# Subkey fingerprint: CC63 D332 AB8F 4617 4529 6534 EB0B 4DFC 657E F670
* remotes/amit-migration/tags/migration-for-2.8:
MAINTAINERS: Add maintainer for COLO framework related files
configure: Support enable/disable COLO feature
docs: Add documentation for COLO feature
COLO: Implement failover work for secondary VM
COLO: Implement the process of failover for primary VM
COLO: Introduce state to record failover process
COLO: Add 'x-colo-lost-heartbeat' command to trigger failover
COLO: Synchronize PVM's state to SVM periodically
COLO: Add checkpoint-delay parameter for migrate-set-parameters
COLO: Load VMState into QIOChannelBuffer before restore it
COLO: Send PVM state to secondary side when do checkpoint
COLO: Add a new RunState RUN_STATE_COLO
COLO: Introduce checkpointing protocol
COLO: Establish a new communicating path for COLO
migration: Switch to COLO process after finishing loadvm
migration: Enter into COLO mode after migration if COLO is enabled
COLO: migrate COLO related info to secondary node
migration: Introduce capability 'x-colo' to migration
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v2
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Merge remote-tracking branch 'remotes/famz/tags/for-upstream' into staging
# gpg: Signature made Fri 28 Oct 2016 15:47:39 BST
# gpg: using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/for-upstream:
aio: convert from RFifoLock to QemuRecMutex
qemu-thread: introduce QemuRecMutex
iothread: release AioContext around aio_poll
block: only call aio_poll on the current thread's AioContext
qemu-img: call aio_context_acquire/release around block job
qemu-io: acquire AioContext
block: prepare bdrv_reopen_multiple to release AioContext
replication: pass BlockDriverState to reopen_backing_file
iothread: detach all block devices before stopping them
aio: introduce qemu_get_current_aio_context
sheepdog: use BDRV_POLL_WHILE
nfs: use BDRV_POLL_WHILE
nfs: move nfs_set_events out of the while loops
block: introduce BDRV_POLL_WHILE
qed: Implement .bdrv_drain
block: change drain to look only at one child at a time
block: add BDS field to count in-flight requests
mirror: use bdrv_drained_begin/bdrv_drained_end
blockjob: introduce .drain callback for jobs
replication: interrupt failover if the main device is closed
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce the design of COLO, and how to test it.
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
We leave users to choose whatever heartbeat solution they want,
if the heartbeat is lost, or other errors they detect, they can use
experimental command 'x_colo_lost_heartbeat' to tell COLO to do failover,
COLO will do operations accordingly.
For example, if the command is sent to the Primary side,
the Primary side will exit COLO mode, does cleanup work,
and then, PVM will take over the service work. If sent to the Secondary side,
the Secondary side will run failover work, then takes over PVM's service work.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
Add checkpoint-delay parameter for migrate-set-parameters, so that
we can control the checkpoint frequency when COLO is in periodic mode.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
We add helper function colo_supported() to indicate whether
colo is supported or not, with which we use to control whether or not
showing 'x-colo' string to users, they can use qmp command
'query-migrate-capabilities' or hmp command 'info migrate_capabilities'
to learn if colo is supported.
The default value for COLO (COarse-Grain LOck Stepping) is disabled.
Cc: Juan Quintela <quintela@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
This is the first step towards having fine-grained critical sections in
dataplane threads, which will resolve lock ordering problems between
address_space_* functions (which need the BQL when doing MMIO, even
after we complete RCU-based dispatch) and the AioContext.
Because AioContext does not use contention callbacks anymore, the
unit test has to be changed.
Previously applied as a0710f7995 and
then reverted.
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1477565348-5458-19-git-send-email-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
This updates the existing documentation to reflect recent updates to
the hotplug event structure, which are in draft form but slated
for inclusion in PAPR/LoPAPR.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The QmpOutputVisitor has no direct dependency on QMP. It is
valid to use it anywhere that one wants a QObject. Rename it
to better reflect its functionality as a generic QAPI
to QObject converter.
The commit before previous renamed the files, this one renames C
identifiers.
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1475246744-29302-6-git-send-email-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Split into file rename and identifier rename]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The QmpInputVisitor has no direct dependency on QMP. It is
valid to use it anywhere that one has a QObject. Rename it
to better reflect its functionality as a generic QObject
to QAPI converter.
The previous commit renamed the files, this one renames C identifiers.
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1475246744-29302-5-git-send-email-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Straightforwardly rebased, split into file and identifier rename]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Now that QAPI supports boxed types, we can have unions at the top level
of a command, so let's put our real options directly there for
blockdev-add instead of having a single "options" dict that contains the
real arguments.
blockdev-add is still experimental and we already made substantial
changes to the API recently, so we're free to make changes like this
one, too.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This introduces load-acquire and store-release operations in QEMU.
For now, just use them as an implementation detail of atomic_mb_read
and atomic_mb_set.
Since docs/atomics.txt documents that atomic_mb_read only synchronizes
with an atomic_mb_set of the same variable, we can use the new implementation
everywhere instead of seq-cst loads and stores.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch does three things:
- It adds a list of restrictions and ToDos
- It corrects the header --- lines to match the length of the header
- It clarifies the force-raw option
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: e75d1d285cf8f45037c41ebe1bc3f68120f09cb9.1475702918.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
1. Default cache size is 64MB.
2. Semantics correction.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Mark the old commands 'migrate_set_speed' and 'migrate_set_downtime' as
deprecated.
Move max-bandwidth and downtime-limit into migrate-set-parameters for
setting maximum migration speed and expected downtime limit parameters
respectively.
Change downtime units to milliseconds (only for new-command) and set
its upper bound limit to 2000 seconds.
Update the query part in both hmp and qmp qemu control interfaces.
Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2016-10-07' into staging
QAPI patches for 2016-10-07
# gpg: Signature made Fri 07 Oct 2016 18:55:40 BST
# gpg: using RSA key 0x3870B400EB918653
# 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-2016-10-07:
docs: Belatedly update for move of QMP/* to docs/
docs: Belatedly update for move of qmp-commands.txt
qmp: Disable query-cpu-* commands when they're unavailable
MAINTAINERS: Pass the QObject staff from Luiz to Markus
MAINTAINERS: Pass the HMP staff from Luiz to David
qapi: return a 'missing parameter' error
qapi: assert list entry has a value
qapi: add assert about root value
tests/test-qmp-input-strict: Cover missing struct members
qapi: Fix crash when 'any' or 'null' parameter is missing
qmp: fix object-add assert() without props
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Missed in commit 7537fe0 and commit 9b89b6a.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1475766600-7273-1-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
The event currently only contains the BlockBackend name. However, with
anonymous BlockBackends, this is always the empty string. Add the qdev
ID (or if none was given, the QOM path) so that the user can still see
which device caused the event.
Event generation has to be moved from bdrv_eject() to the BlockBackend
because the BDS doesn't know the attached device, but that's easy
because blk_eject() is the only user of it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The event currently only contains the BlockBackend name. However, with
anonymous BlockBackends, this is always the empty string. Add the node
name so that the user can still see which block device caused the event.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
So now edu device can support both line or msi interrupt, depending on
how user configures it.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <1475067819-21413-1-git-send-email-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Set cpu->running without taking the cpu_list lock, only requiring it if
there is a concurrent exclusive section. This requires adding a new
field to CPUState, which records whether a running CPU is being counted
in pending_cpus.
When an exclusive section is started concurrently with cpu_exec_start,
cpu_exec_start can use the new field to determine if it has to wait for
the end of the exclusive section. Likewise, cpu_exec_end can use it to
see if start_exclusive is waiting for that CPU.
This a separate patch for easier bisection of issues.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is not necessary to hold qemu_cpu_list_mutex throughout the
exclusive section, because no other exclusive section can run
while pending_cpus != 0.
exclusive_idle() is called in cpu_exec_start(), and that prevents
any CPUs created after start_exclusive() from entering cpu_exec()
during an exclusive section.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
No need to call exclusive_idle() from cpu_exec_end since it is done
immediately afterwards in cpu_exec_start. Any exclusive section could
run as soon as cpu_exec_end leaves, because cpu->running is false and the
mutex is not taken, so the call does not add any protection either.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Introduce the design of COLO-proxy, and how to use it.
Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
With this patch, blockdev-add always works on a node level, i.e. it
creates a BDS, but no BB. Consequently, x-blockdev-del doesn't need the
'device' option any more, but 'node-name' becomes mandatory.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts block_set_io_throttle to accept a qdev device name.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts blockdev-change-medium to accept a qdev device name.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts eject to accept a qdev device name.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts x-blockdev-remove-medium to accept a qdev device name.
As the command is experimental, we can still remove the 'device' option
that uses the BlockBackend name. This requires some test case changes
and is left for another series.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts x-blockdev-insert-medium to accept a qdev device name.
As the command is experimental, we can still remove the 'device' option
that uses the BlockBackend name. This requires some test case changes
and is left for another series.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In order to remove the need for BlockBackend names in the external API,
we want to allow qdev device names in all device related commands.
This converts blockdev-open/close-tray to accept a qdev device name.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The only remaining function of qmp-commands.hx is to let us generate
qmp-commands.txt from it. Replace qmp-commands.hx by qmp-commands.txt.
We intend to move the documentation into the QAPI schema and generate
qapi-commands.txt from it, but not right now.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-19-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This is no longer necessary now that we aren't using middle mode
anymore.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20160912091913.15831-12-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Stop using the so-called 'middle' mode. Instead, use qmp_find_command()
from generated qapi commands registry. Update and fix the documentation
too.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-10-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Message-Id: <1472696479-3619-1-git-send-email-caoj.fnst@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 0bab0ebb17 was supposed to fix
a mistake in the description of the leaky bucket algorithm, but the
version that finally landed after the review process was incorrect.
This patch solves that problem and hopefully clarifies the description
a bit better.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This patch adds a tracing backend which sends output using syslog().
The syslog backend is limited to POSIX compliant systems.
openlog() is called with facility set to LOG_DAEMON, with the LOG_PID
option. Trace events are logged at level LOG_INFO.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Message-id: 1470318254-29989-1-git-send-email-paul.durrant@citrix.com
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This introduces the VHOST_USER_PROTOCOL_F_REPLY_ACK.
If negotiated, client applications should send a u64 payload in
response to any message that contains the "need_reply" bit set
on the message flags. Setting the payload to "zero" indicates the
command finished successfully. Likewise, setting it to "non-zero"
indicates an error.
Currently implemented only for SET_MEM_TABLE.
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Prerna Saxena <prerna.saxena@nutanix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
- interrupt remapping for intel iommus
- a bunch of virtio cleanups
- fixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc, pci, virtio: new features, cleanups, fixes
- interrupt remapping for intel iommus
- a bunch of virtio cleanups
- fixes all over the place
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 21 Jul 2016 18:49:30 BST
# gpg: using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream: (57 commits)
intel_iommu: avoid unnamed fields
virtio: Update migration docs
virtio-gpu: Wrap in vmstate
virtio-gpu: Use migrate_add_blocker for virgl migration blocking
virtio-input: Wrap in vmstate
9pfs: Wrap in vmstate
virtio-serial: Wrap in vmstate
virtio-net: Wrap in vmstate
virtio-balloon: Wrap in vmstate
virtio-rng: Wrap in vmstate
virtio-blk: Wrap in vmstate
virtio-scsi: Wrap in vmstate
virtio: Migration helper function and macro
virtio-serial: Remove old migration version support
virtio-net: Remove old migration version support
virtio-scsi: Replace HandleOutput typedef
Revert "mirror: Workaround for unexpected iohandler events during completion"
virtio-scsi: Call virtio_add_queue_aio
virtio-blk: Call virtio_add_queue_aio
virtio: Introduce virtio_add_queue_aio
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove references to register_savevm.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
