We may want to accept zero interval when VM FT solutions like MC
or COLO use this filter to release packets on demand.
Signed-off-by: zhanghailiang
Reviewed-by: Yang Hongyang
---
net/filter-buffer.c | 10 --
1 file changed, 10 deletions(-)
diff --git a/net/filter-buffer.c b/net/filter
With this property, users can control if this filter is 'enable'
or 'disable'. The default behavior for filter is enabled.
We will skip the disabled filter when delivering packets in net layer.
Signed-off-by: zhanghailiang
---
v2:
- Squash previous patch 3 into this patch
o
network'
v2:
- Drop the patch 'net/filter: prevent the default filter to be deleted' (Jason)
- Re-implement netdev_add_filter() by re-using object_object() (Jason)
- Send patch 'net/filter: Fix the output information for command 'info network'
as an independen
e we split a helper function that could collect the output
information for filter, and also remove the useless member
'info_str' from struct NetFilterState.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Eric Blake
Cc: Markus Armbruster
Cc: Yang Hongyang
---
v2:
- write the info
e we split a helper function that could colletct the output
information for filter, and also remove the useless member
'info_str' from struct NetFilterState.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Eric Blake
Cc: Markus Armbruster
Cc: Yang Hongyang
---
include/net/filter
we hope to support
hot add network during COLO state in future.
Signed-off-by: zhanghailiang
---
include/net/filter.h | 11 +++
net/dump.c | 2 --
net/filter.c | 15 ++-
net/net.c| 18 ++
4 files changed, 43 insertions(+), 3
Signed-off-by: zhanghailiang
---
include/net/filter.h | 5 +
net/filter.c | 63
2 files changed, 68 insertions(+)
diff --git a/include/net/filter.h b/include/net/filter.h
index d797ee4..c7bd8f9 100644
--- a/include/net/filter.h
We may want to accept zero interval when VM FT solutions like MC
or COLO use this filter to release packets on demand.
Signed-off-by: zhanghailiang
Reviewed-by: Yang Hongyang
---
net/filter-buffer.c | 10 --
1 file changed, 10 deletions(-)
diff --git a/net/filter-buffer.c b/net/filter
If the filter is disabled, don't go through it.
Signed-off-by: zhanghailiang
---
include/net/filter.h | 5 +
net/net.c| 4
2 files changed, 9 insertions(+)
diff --git a/include/net/filter.h b/include/net/filter.h
index 9ed5ec6..d797ee4 100644
--- a/include/net/fil
With this property, users can control if this filter is 'enable'
or 'disable'. The default behavior for filter is enabled.
Signed-off-by: zhanghailiang
---
include/net/filter.h | 1 +
net/filter.c | 36
2 files changed, 37 inser
split a the helper function that could colletct the output
information for filter, and also remove the useless member
'info_str' from struct NetFilterState.
Signed-off-by: zhanghailiang
---
include/net/filter.h | 3 ++-
net/filter.c | 47 ++--
Signed-off-by: zhanghailiang
---
net/filter.c | 8
1 file changed, 8 insertions(+)
diff --git a/net/filter.c b/net/filter.c
index a126a3b..4aafff0 100644
--- a/net/filter.c
+++ b/net/filter.c
@@ -323,11 +323,19 @@ static void netfilter_finalize(Object *obj)
g_free(nf->netdev
This series is a prerequisite for COLO, here we add each netdev
a default buffer filter, it is disabled by default, and has
no side effect for delivering packets in net layer.
Besides, patch 1 fixes the ouput information of 'info network' command
for filter.
zhanghailiang (7):
net/f
at we can't set x-cpu-throttle-initial
and x-cpu-throttle-increment through migrate-set-parameters qmp command.
Signed-off-by: zhanghailiang
---
qmp-commands.hx | 18 ++
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/qmp-commands.hx b/qmp-commands.hx
ind
qemu_loadvm_state is too long, and we can simplify it by splitting up
with three helper functions.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
migration/savevm.c | 156 +++--
1 file changed, 92 insertions(+), 64 deletions
helper functions.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
migration/ram.c | 33 +++--
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 8583da8..c36daea 100644
--- a/migration/ram.c
+
: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
include/exec/ram_addr.h | 8 ++--
migration/ram.c | 40 +---
2 files changed, 31 insertions(+), 17 deletions(-)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index ef1489d..606e277 100644
Patch 1 ~ patch 4 are picked from COLO and live memory snapshot series,
They are just small improvements for migration codes and have been reviewed
by Dave.
Patch 5, 6 are small fixes for migration releated documention.
Please review.
zhanghailiang (6):
ram: Split host_from_stream_offset
Add the missing descriptions for the options of migration capability commands,
and fix the example for query-migrate-capabilities command.
Signed-off-by: zhanghailiang
---
qmp-commands.hx | 15 ++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/qmp-commands.hx b/qmp
Rename the 'file' member of MigrationState to 'to_dst_file'.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
include/migration/migration.h | 2 +-
migration/exec.c | 4 +--
migration/fd.c| 4 +--
migration/migr
helper functions.
Signed-off-by: zhanghailiang
---
migration/ram.c | 33 +++--
1 file changed, 19 insertions(+), 14 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index fc4c788..8656719 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -726,7 +726,
rite-protect in fault thread during
the setup stage. Besides, we should not try to get global lock after setup
stage,
or there maybe an deadlock error.
Signed-off-by: zhanghailiang
---
include/migration/migration.h | 4 ++--
migration/migration.c | 2 +-
migration/postcopy-
emove the write-protect.
In this way, we can ensure, the content of the page in snapshot file is
same with the time we got snapshot command.
Signed-off-by: zhanghailiang
---
include/migration/postcopy-ram.h | 4
migration/migration.c| 17 +++--
migration/postcopy-ram
ile after
finishing save VM's live state.
Signed-off-by: zhanghailiang
---
include/sysemu/sysemu.h | 3 +++
migration/migration.c | 14 --
migration/savevm.c | 44
3 files changed, 59 insertions(+), 2 deletions(-)
diff --git a/incl
re taking snapshot, please disable THP by:
echo never > /sys/kernel/mm/transparent_hugepage/enabled
TODO:
- Reduce the influence for VM while taking snapshot
zhanghailiang (13):
postcopy/migration: Split fault related state into struct
UserfaultState
migration: Allow the migrate command to work on
Usage:
(qemu) migrate file:/path/to/vm_statefile
Signed-off-by: zhanghailiang
Signed-off-by: Benoit Canet
---
- With this patch, we can easily test memory snapshot
- Rebase on qemu 2.5
---
include/migration/migration.h | 6 +-
migration/fd.c| 19
Split fault related state from MigrationIncomingState struct, and put
them all into a new struct UserfaultState. We will add this state into
struct MigrationState in later patch.
We also fix some helper functions to use the new type.
Signed-off-by: zhanghailiang
---
include/migration
Enable default filter to buffer packets and release the
packets after a checkpoint.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Add a helper function to check if all netdev supports buffer packets.
- Flush buffered packets when do failover.
v11:
- Use new helper
The default buffer filter doesn't buffer packets in default,
but we need to buffer packets for COLO or Micro-checkpoint,
Here we add a helper function to enable/disable filter's buffer
capability.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Rename
s to wake up the blocking
operation in failover BH. Besides, we should close the corresponding file
descriptors
after failvoer BH shutdown them, or there will be an error.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
Cc: Dr. David Alan Gilbert
---
v13:
-
For default buffer filter, its 'interval' value is zero,
so here we should accept zero interval.
Signed-off-by: zhanghailiang
Reviewed-by: Yang Hongyang
Cc: Jason Wang
---
v12:
- Add Reviewed-by tag
v11:
- Add comment
v10:
- new patch
---
net/filter-buffer.c | 10 --
1 fi
We need to release all the packets from VM in COLO or Micro-checkpoint,
here we add a new helper function to realse the packets that buffered
by default buffer-filter
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Rename this helper function
v11:
- New patch
If we start qemu with -S, the runstate will change from 'prelaunch' to 'running'
after going into colo state.
So it is necessary to update the global runstate after going into colo state.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gil
data
transferring in the later checkpoint.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v13:
- Fix some minor issues found by Dave
- Add Reviewed-by tag
---
migration/colo.c | 51 ---
1 file
: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v13:
- Add Reviewed-by tag
v12:
- Remove the offset parameter for ram_block_from_stream() and
check the validity of the related value in a new helper. (Dave's suggestion)
v11:
- New patch
---
include/exec/ram_addr.h | 8 ++--
migration/
If VM is in COLO FT state, we should do some extra work before normal shutdown
process. SVM will ignore the shutdown command if this command is issued directly
to it, PVM will send the shutdown command to SVM if it gets this command.
Cc: Paolo Bonzini
Signed-off-by: zhanghailiang
Signed-off-by
during checkpoint.
Besides, we move the colo_flush_ram_cache to the proper position after the
above change.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v13:
- Re-use some existed helper functions to realize saving/loading ram and device.
v11:
- Remove load configuration section in
is still necessary to notify users that we exited COLO mode.
Cc: Markus Armbruster
Cc: Michael Roth
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v13:
- Remove optional 'error' string for this event.
(I doubted it was usefull for users, Since users shouldn't int
Guest will enter this state when paused to save/restore VM state
under colo checkpoint.
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
Reviewed-by: Eric Blake
---
qapi-schema.json | 5
We should not do failover work while the main thread is loading
VM's state, otherwise it will destroy the consistent of VM's memory and
device state.
Here we add a new failover status 'RELAUNCH' which means we should
relaunch the process of failover.
Signed-off-by: zhanghai
for the netdev.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Skip vhost-net when add default filter
- Don't go through filter layer if the filter is disabled.
v11:
- New patch
---
include/net/filter.h | 10 +++
net/f
7;s state.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Fix minor error in error_report (Dave's comment)
- Add Reviewed-by tag
v11:
- Rename 'host_cache' to 'colo_cache' (Dave's suggestion)
v
For PVM, if there is failover request from users.
The colo thread will exit the loop while the failover BH does the
cleanup work and resumes VM.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v13:
- Add Reviewed-by tag
v12:
- Fix error report and
Make sure master start block replication after slave's block replication
started.
Signed-off-by: zhanghailiang
Signed-off-by: Wen Congyang
Signed-off-by: Li Zhijian
---
migration/colo.c | 52
trace-events | 2 ++
2 files change
Add a migrate state: MIGRATION_STATUS_COLO, enter this migration state
after the first live migration successfully finished.
We reuse migration thread, so if colo is enabled by user, migration thread will
go into the process of colo.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
earn if colo is supported.
Cc: Juan Quintela
Cc: Amit Shah
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Eric Blake
---
v10:
- Rename capability 'colo' to experimental 'x-colo' (Eri
Do checkpoint periodically, the default interval is 200ms.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- Fix wrong sleep time for checkpoint period. (Dave's review comment)
---
migration/colo.c
emory leak.
We need to check if we have the section info in loadvm_handlers list
before save it. For normal migration, it is harmless.
Signed-off-by: zhanghailiang
---
v13:
- New patch
---
migration/savevm.c | 56 ++
1 file changed, 40 insertions(+
qemu_loadvm_state is too long, and we can simplify it by splitting up
with three helper functions.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
v13:
- Add Reviewed-by tag
---
migration/savevm.c | 156 +++--
1 file changed, 92
set the value.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- fix several typos found by Dave
- Add Reviewed-by tag
---
include/migration/failover.h | 10 ++
migration/colo-failover.c| 37 +
migration/colo.c
If users require SVM to takeover work, colo incoming thread should
exit from loop while failover BH helps backing to migration incoming
coroutine.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
v12:
- Improve error message that suggested by Dave
This new communication path will be used for returning messages
from destination to source.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v13:
- Remove useless error report
v12:
- Add Reviewed-by tag
v11:
- Rebase master to use
e PVM, the Primary side will
exit COLO mode and take over operation. If sent to the Secondary, the
secondary will run failover work, then take over server operation to
become the new Primary.
Cc: Luiz Capitulino
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by:
the size of VM state, so in master,
we use qsb to store VM state temporarily, get the data size by call
qsb_get_length()
and then migrate the data to the qsb in the secondary side.
Signed-off-by: zhanghailiang
Signed-off-by: Gonglei
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
all content of PVM's RAM cache into SVM's MEMORY,
we do this in a more efficient way:
Only flush any page that dirtied by PVM since last checkpoint.
In this way, we can ensure SVM's memory same with PVM's.
Besides, we must ensure flush RAM cache before load device state.
Si
Rename the 'file' member of MigrationState to 'to_dst_file'.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
- Add the missed modification for RDMA migration. (Found by Wen Congyang)
v11:
- Only rename 'file' member
/destination;
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Add Reviewed-by tag
v10:
- Use VMSTATE_BOOL instead of VMSTATE_UNIT32 for 'colo_requested' (Dave's
suggestion).
---
include/migrat
_incoming_co' records the original migration incoming coroutine.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- We moved the place of bdrv_invalidate_cache_all(), but done the deleting work
in other patch. F
Fix the first parameter of migrate_set_state(), and export it.
We will use it in later.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- New patch which is split from patch
'migration: Add state records for migration incoming
We record the address of the dirty pages that received,
it will help flushing pages that cached into SVM.
We record them by re-using migration dirty bitmap.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- Split a new helper function from
load VM state,
which can ensure the data is intact.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
Cc: Dr. David Alan Gilbert
---
v13:
- Fix the define of colo_get_cmd_value() to use 'Error **errp' instead of
return
For migration destination, we also need to know its state,
we will use it in COLO.
Here we add a new member 'state' for MigrationIncomingState,
and also use migrate_set_state() to modify its value.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Split
int, for which
the Secondary VM is not running, later we will support 'hybrid' mode.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Cc: Eric Blake
Cc: Markus Armbruster
Cc: Dr. David Alan Gilbert
---
v13:
- Refactor colo command related helper functions, use &
m the file into
qsb, this is used to get VM state from socket into a buffer.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- size_t'ify these two help functions (Dave's suggestion)
---
include/migration/qemu-file.h | 3 ++-
migra
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
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
configure --enable-colo/--disable-colo to switch COLO
support on/off.
COLO support is On by default.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Turn COLO on in default (Eric's suggestion)
---
configure
ault filter before going into COLO.
- Reconstruct send/receive helper functions in patch 10.
- Address serveral other comments from Dave
v11:
- Re-implement buffer/release packets based on filter-buffer according
to Jason Wang's suggestion. (patch 34, patch 36 ~ patch 38)
- Rebase mast
data
transferring in the later checkpoint.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
migration/colo.c | 51 +--
1 file changed, 37 insertions(+), 14 deletions(-)
diff --git a/migration/colo.c b/migration/colo.c
index d253d64
: zhanghailiang
---
v12:
- Remove the offset parameter for ram_block_from_stream() and
check the validity of the related value in a new helper. (Dave's suggestion)
v11:
- New patch
Signed-off-by: zhanghailiang
---
include/exec/ram_addr.h | 8 ++--
migration/ram.c
is still necessary to notify users that we exited COLO mode.
Cc: Markus Armbruster
Cc: Michael Roth
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v11:
- Fix several typos found by Eric
Signed-off-by: zhanghailiang
---
docs/qmp-events.txt | 17 +
migrati
qemu_loadvm_state is too long, and we can simplify it by splitting up
with three helper functions.
Signed-off-by: zhanghailiang
---
migration/savevm.c | 161 -
1 file changed, 97 insertions(+), 64 deletions(-)
diff --git a/migration/savevm.c
during checkpoint.
Besides, we move the colo_flush_ram_cache to the proper position after the
above change.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v11:
- Remove load configuration section in qemu_loadvm_state_begin()
Signed-off-by: zhanghailiang
---
include/sysemu/sysemu.h
We need to release all the packets from VM in COLO or Micro-checkpoint,
here we add a new helper function to realse the packets that buffered
by default buffer-filter
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Rename this helper function
v11:
- New patch
Signed
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
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
for the netdev.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Skip vhost-net when add default filter
- Don't go through filter layer if the filter is disabled.
v11:
- New patch
Signed-off-by: zhanghailiang
---
include/net/filter.h | 10 +++
net/f
the size of VM state, so in master,
we use qsb to store VM state temporarily, get the data size by call
qsb_get_length()
and then migrate the data to the qsb in the secondary side.
Signed-off-by: zhanghailiang
Signed-off-by: Gonglei
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
s to wake up the blocking
operation in failover BH. Besides, we should close the corresponding file
descriptors
after failvoer BH shutdown them, or there will be an error.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v12:
- Shutdown both QEMUFile's fd though they may use the sam
If VM is in COLO FT state, we should do some extra work before normal shutdown
process. SVM will ignore the shutdown command if this command is issued directly
to it, PVM will send the shutdown command to SVM if it gets this command.
Cc: Paolo Bonzini
Signed-off-by: zhanghailiang
Signed-off-by
Enable default filter to buffer packets and release the
packets after a checkpoint.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Add a helper function to check if all netdev supports buffer packets.
- Flush buffered packets when do failover.
v11:
- Use new helper
We should not do failover work while the main thread is loading
VM's state, otherwise it will destroy the consistent of VM's memory and
device state.
Here we add a new failover status 'RELAUNCH' which means we should
relaunch the process of failover.
Signed-off-by: zhanghai
all content of PVM's RAM cache into SVM's MEMORY,
we do this in a more efficient way:
Only flush any page that dirtied by PVM since last checkpoint.
In this way, we can ensure SVM's memory same with PVM's.
Besides, we must ensure flush RAM cache before load device state.
Si
Make sure master start block replication after slave's block replication
started.
Signed-off-by: zhanghailiang
Signed-off-by: Wen Congyang
Signed-off-by: Li Zhijian
---
migration/colo.c | 60
trace-events | 2 ++
2 files ch
set the value.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- fix several typos found by Dave
- Add Reviewed-by tag
Signed-off-by: zhanghailiang
---
include/migration/failover.h | 10 ++
migration/colo-failover.c| 37
For default buffer filter, its 'interval' value is zero,
so here we should accept zero interval.
Signed-off-by: zhanghailiang
Reviewed-by: Yang Hongyang
Cc: Jason Wang
---
v12:
- Add Reviewed-by tag
v11:
- Add comment
v10:
- new patch
Signed-off-by: zhanghailiang
---
net/filte
e PVM, the Primary side will
exit COLO mode and take over operation. If sent to the Secondary, the
secondary will run failover work, then take over server operation to
become the new Primary.
Cc: Luiz Capitulino
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by:
If we start qemu with -S, the runstate will change from 'prelaunch' to 'running'
after going into colo state.
So it is necessary to update the global runstate after going into colo state.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
migration/colo.c | 5
We record the address of the dirty pages that received,
it will help flushing pages that cached into SVM.
We record them by re-using migration dirty bitmap.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- Split a new helper function from
The default buffer filter doesn't buffer packets in default,
but we need to buffer packets for COLO or Micro-checkpoint,
Here we add a helper function to enable/disable filter's buffer
capability.
Signed-off-by: zhanghailiang
Cc: Jason Wang
Cc: Yang Hongyang
---
v12:
- Rename
m the file into
qsb, this is used to get VM state from socket into a buffer.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- size_t'ify these two help functions (Dave's suggestion)
Signed-off-by: zhanghailiang
---
include/migrat
load VM state,
which can ensure the data is intact.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
Cc: Dr. David Alan Gilbert
---
v12:
- Use the new helper colo_get_cmd_value() instead of colo_ctl_get()
Signed-off-by
Rename the 'file' member of MigrationState to 'to_dst_file'.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
- Add the missed modification for RDMA migration. (Found by Wen Congyang)
v11:
- Only rename 'file' member
7;s state.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Fix minor error in error_report (Dave's comment)
- Add Reviewed-by tag
v11:
- Rename 'host_cache' to 'colo_cache' (Dave's suggestion)
v
If users require SVM to takeover work, colo incoming thread should
exit from loop while failover BH helps backing to migration incoming
coroutine.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Reviewed-by: Dr. David Alan Gilbert
v12:
- Improve error message that suggested by Dave
Add a migrate state: MIGRATION_STATUS_COLO, enter this migration state
after the first live migration successfully finished.
We reuse migration thread, so if colo is enabled by user, migration thread will
go into the process of colo.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Fix the first parameter of migrate_set_state(), and export it.
We will use it in later.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v12:
- Add Reviewed-by tag
v11:
- New patch which is split from patch
'migration: Add state records for migration incoming
configure --enable-colo/--disable-colo to switch COLO
support on/off.
COLO support is On by default.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Turn COLO on in default (Eric's suggestion)
Signed-o
/destination;
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Add Reviewed-by tag
v10:
- Use VMSTATE_BOOL instead of VMSTATE_UNIT32 for 'colo_requested' (Dave's
suggestion).
Signed-off-by: zhanghailian
Guest will enter this state when paused to save/restore VM state
under colo checkpoint.
Cc: Eric Blake
Cc: Markus Armbruster
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
Signed-off-by: Gonglei
Reviewed-by: Dr. David Alan Gilbert
Reviewed-by: Eric Blake
---
qapi-schema.json | 5
For migration destination, we also need to know its state,
we will use it in COLO.
Here we add a new member 'state' for MigrationIncomingState,
and also use migrate_set_state() to modify its value.
Signed-off-by: zhanghailiang
Reviewed-by: Dr. David Alan Gilbert
---
v11:
- Split
For PVM, if there is failover request from users.
The colo thread will exit the loop while the failover BH does the
cleanup work and resumes VM.
Signed-off-by: zhanghailiang
Signed-off-by: Li Zhijian
---
v12:
- Fix error report and remove unnecessary check in primary_vm_do_failover()
(Dave&#
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