Commit Graph

273 Commits

Author SHA1 Message Date
Juan Quintela
c3d2e2e76c migration: Move constants to savevm.h
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
2017-06-13 11:00:45 +02:00
Juan Quintela
b7722747e4 migration: Move dump_vmsate_json_to_file() to misc.h
It was not from vmstate.c to start with.

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>
2017-06-13 11:00:45 +02:00
Juan Quintela
f2a8f0a631 migration: Split registration functions from vmstate.h
They are indpendent, and nowadays almost every device register things
with qdev->vmsd.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-06-13 11:00:44 +02:00
Juan Quintela
f8d806c992 migration: Move self_announce_delay() to misc.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>
2017-06-13 11:00:44 +02:00
Laurent Vivier
1b6e748246 migration: remove register_savevm()
We can replace the four remaining calls of register_savevm() by
calls to register_savevm_live(). So we can remove the function and
as we don't allocate anymore the ops pointer with g_new0()
we don't have to free it then.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-06-06 08:53:24 +10:00
Juan Quintela
2c9e6fec89 migration: Move include/migration/block.h into migration/
All functions were internal, except blk_mig_init() that is exported in
misc.h now.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:24 +02:00
Juan Quintela
7b1e1a2202 migration: Export ram.c functions in its own file
All functions are internal except for ram_mig_init().  Create
migration/misc.h for this kind of functions.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:23 +02:00
Juan Quintela
5e22479ae2 migration: Create include for migration snapshots
Start removing migration code from sysemu/sysemu.h.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:23 +02:00
Juan Quintela
e1a3ecee3b migration: Export rdma.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:23 +02:00
Juan Quintela
41d64227ed migration: Export tls.c functions in its own file
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: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:23 +02:00
Juan Quintela
61e8b14880 migration: Export socket.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:23 +02:00
Juan Quintela
7fcac4a2cc migration: Export fd.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:22 +02:00
Juan Quintela
f4dbe1bf34 migration: Export exec.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:49:22 +02:00
Juan Quintela
08a0aee15c migration: Split qemu-file.h
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>
2017-06-01 18:49:22 +02:00
Juan Quintela
c2355ad47d migration: loadvm handlers are not used
So we remove all traces of them.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-06-01 18:31:13 +02:00
Juan Quintela
987772d9e7 migration: Remove vmstate.h from migration.h
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

---

Minor rearrangements due to rebase
2017-05-18 19:20:59 +02:00
Juan Quintela
82b9d0f06a migration: Remove qemu-file.h from vmstate.h
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

--

minor rearangements due to the rebase
2017-05-18 19:20:59 +02:00
Juan Quintela
05b98c22f8 migration: Move qjson.h to migration/
It is only used for migration code.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18 19:20:59 +02:00
Juan Quintela
c59be019e9 migration: Remove migration.h from colo.h
migration.h is not included in any includes now.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18 19:20:59 +02:00
Juan Quintela
40014d81f2 migration: Export qemu-file-channel.c functions in its own file
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-18 19:20:50 +02:00
Juan Quintela
dd4339c540 migration: Split migration/channel.c for channel operations
Create an include for its exported functions.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

---
Add proper header
2017-05-18 19:20:24 +02:00
Juan Quintela
709e3fe825 migration: Create migration/xbzrle.h
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18 18:04:54 +02:00
Dr. David Alan Gilbert
ed1701c6a5 block migration: Allow compile time disable
Many users now prefer to use drive_mirror over NBD as an
alternative to the older migrate -b option; drive_mirror is
more complex to setup but gives you more options (e.g. only
migrating some of the disks if some of them are shared).

Allow the large chunk of block migration code to be compiled
out for those who don't use it.

Based on a downstream-patch we've had for a while by Jeff Cody.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

--

- When compiled out, allow seting block only with false value (eric)
2017-05-18 18:04:54 +02:00
Juan Quintela
a0762d9e34 migration: Remove old MigrationParams
Not used anymore after moving block migration to use capabilities.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-18 18:04:54 +02:00
Juan Quintela
ce7c817c85 migration: Remove use of old MigrationParams
We have change in the previous patch to use migration capabilities for
it.  Notice that we continue using the old command line flags from
migrate command from the time being.  Remove the set_params method as
now it is empty.

For savevm, one can't do a:

savevm -b/-i foo

but now one can do:

migrate_set_capability block on
savevm foo

And we can't use block migration. We could disable block capability
unconditionally, but it would not be much better.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

---
- Maintain shared/enabled dependency (Xu suggestion)
- Now we maintain the dependency on the setter functions
- improve error messages
2017-05-18 18:04:54 +02:00
Juan Quintela
2833c59b94 migration: Create block capability
Create one capability for block migration and one parameter for
incremental block migration.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>

---

- address all Markus comments
- use Markus and Eric text descriptions
- change logic another time
- improve text messages
2017-05-18 18:04:54 +02:00
Juan Quintela
1bfe5f0586 migration: Move check_migratable() into qdev.c
The function is only used once, and nothing else in migration knows
about objects.  Create the function vmstate_device_is_migratable() in
savem.c that really do the bit that is related with migration.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-05-17 12:04:59 +02:00
Juan Quintela
bac3b21218 migration: Move postcopy stuff to postcopy-ram.c
Yes, we don't have a good place to put that stuff.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-17 12:04:59 +02:00
Juan Quintela
aa3544c371 migration: Move page_cache.c to migration/
It is only used by migration, so move it there.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-17 12:04:59 +02:00
Juan Quintela
795c40b8bd migration: Create migration/blocker.h
This allows us to remove lots of includes of migration/migration.h

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-17 12:04:59 +02:00
Stefan Hajnoczi
4aee86c60a migration/next for 20170504
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Merge remote-tracking branch 'quintela/tags/migration/20170504' into staging

migration/next for 20170504

# gpg: Signature made Thu 04 May 2017 10:35:41 AM BST
# gpg:                using RSA key 0xF487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* quintela/tags/migration/20170504:
  migration: Extra tracing
  migration: Move postcopy-ram.h to migration/
  monitor: Move hmp_info_snapshots from savevm.c to hmp.c
  monitor: Move hmp_delvm from savevm.c to hmp.c
  monitor: Move hmp_savevm from savevm.c to hmp.c
  monitor: Move hmp_loadvm from monitor.c to hmp.c
  monitor: Remove monitor parameter from save_vmstate
  migration: to_dst_file at that point is NULL
  migration: setup bi-directional I/O channel for exec: protocol
  ram: Split dirty bitmap by RAMBlock

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:52:35 +01:00
Stefan Hajnoczi
317134bb54 Openrisc Features and Fixes for qemu 2.10
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Merge remote-tracking branch 'shorne/tags/pull-or-20170504' into staging

Openrisc Features and Fixes for qemu 2.10

# gpg: Signature made Thu 04 May 2017 01:41:45 AM BST
# gpg:                using RSA key 0xC3B31C2D5E6627E4
# gpg: Good signature from "Stafford Horne <shorne@gmail.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: D9C4 7354 AEF8 6C10 3A25  EFF1 C3B3 1C2D 5E66 27E4

* shorne/tags/pull-or-20170504:
  target/openrisc: Support non-busy idle state using PMR SPR
  target/openrisc: Remove duplicate features property
  target/openrisc: Implement full vmstate serialization
  migration: Add VMSTATE_STRUCT_2DARRAY()
  target/openrisc: implement shadow registers
  migration: Add VMSTATE_UINTTL_2DARRAY()
  target/openrisc: add numcores and coreid support
  target/openrisc: Fixes for memory debugging
  target/openrisc: Implement EPH bit
  target/openrisc: Implement EVBAR register
  MAINTAINERS: Add myself as openrisc maintainer

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-05-05 16:21:16 +01:00
Juan Quintela
be07b0ace8 migration: Move postcopy-ram.h to migration/
It is internal to migration, not intended for other users.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-05-04 10:40:30 +02:00
Juan Quintela
6b6712efcc ram: Split dirty bitmap by RAMBlock
Both the ram bitmap and the unsent bitmap are split by RAMBlock.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

--

Fix compilation when DEBUG_POSTCOPY is enabled (thanks Hailiang)
2017-05-04 10:00:38 +02:00
Stafford Horne
b75c958d88 migration: Add VMSTATE_STRUCT_2DARRAY()
For openrisc we implement tlb state as a 2d array of tlb entry structs.
This is added to allow easy storing of state of 2d arrays.

Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-05-04 09:39:06 +09:00
Stafford Horne
4597992f62 migration: Add VMSTATE_UINTTL_2DARRAY()
In openRISC we are implementing the shadow registers as a 2d array.
Using this target long method rather than direct 32-bit alternatives is
consistent with the rest of our vm state serialization logic.

Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-05-04 09:39:01 +09:00
Peter Xu
faec066ab8 migration: rename max_size to threshold_size
In migration codes (especially in migration_thread()), max_size is used
in many place for the threshold value that we will start to do the final
flush and jump to the next stage to dump the whole rest things to
destination. However its name is confusing to first readers. Let's
rename it to "threshold_size" when proper and add a comment for it. No
functional change is made.

CC: Juan Quintela <quintela@redhat.com>
CC: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2017-04-21 12:25:41 +02:00
Juan Quintela
fab3500526 migration: Remove MigrationState parameter from migration_is_idle()
Only user don't have a MigrationState handly.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-04-21 12:25:40 +02:00
Juan Quintela
aaa2064c2a ram: ram_discard_range() don't use the mis parameter
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:39 +02:00
Juan Quintela
5727309d25 migration: Remove MigrationState from migration_in_postcopy
We need to call for the migrate_get_current() in more that half of the
uses, so call that inside.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:39 +02:00
Juan Quintela
96506894a3 ram: Move postcopy_requests into RAMState
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:38 +02:00
Juan Quintela
47ad861976 ram: Move dirty_pages_rate to RAMState
Treat it like the rest of ram stats counters.  Export its value the
same way.  As an added bonus, no more MigrationState used in
migration_bitmap_sync();

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

--

Again, dave was the one reviewing it
2017-04-21 12:25:38 +02:00
Juan Quintela
abbf1d7f9b ram: Remove dirty_bytes_rate
It can be recalculated from dirty_pages_rate.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>

--

Dave was the one that reviewed it O:-)
2017-04-21 12:25:38 +02:00
Juan Quintela
42d219d3b0 ram: Create ram_dirty_sync_count()
This is a ram field that was inside MigrationState.  Move it to
RAMState and make it the same that the other ram stats.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:37 +02:00
Juan Quintela
ec481c6c57 ram: Move src_page_req* to RAMState
This are the last postcopy fields still at MigrationState.  Once there
Move MigrationSrcPageRequest to ram.c and remove MigrationState
parameters where appropiate.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:37 +02:00
Juan Quintela
68a098f386 ram: Move last_req_rb to RAMState
It was on MigrationState when it is only used inside ram.c for
postcopy.  Problem is that we need to access it without being able to
pass it RAMState directly.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:37 +02:00
Juan Quintela
29cc3d8a9b ram: Remove norm_mig_bytes_transferred
Its value can be calculated by other exported.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-04-21 12:25:36 +02:00
Juan Quintela
bedf53c14c ram: Remove unused pages_skipped variable
For compatibility, we need to still send a value, but just specify it
and comment the fact.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:36 +02:00
Juan Quintela
5bb1272c38 ram: Remove unused dup_mig_bytes_transferred()
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:36 +02:00
Juan Quintela
5e58f968f4 ram: Rename flush_page_queue() to migration_page_queue_free()
It reflects better what it does.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2017-04-21 12:25:35 +02:00