Add some trace-events including trace_vfio_migration_plugin_probe
trace_vfio_plugin_save_buffer, trace_vfio_plugin_load_state_device_data
trace_vfio_update_pending, and trace_vfio_migration_set_state to make
debugging easier.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration
running on
IPU/DPU backend SOC through network, the argument should be the IP and Port of
agent. The usage as follows:
-device vfio-pci,id=$ID,host=$bdf,x-enable-migration,\
x-plugin-path=$plugin_path,x-plugin-arg=
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/pci.c | 2
The statistics of bytes transferred conceptually belong to The VFIO live
migration framework, and should not belong to any specific implementation
such In-Band approach, so move it out from vfio_migration_region_save_buffer(),
which makes it easier to add other implementations.
Signed-off-by: Lei
Moving the functions of In-Band approach into a new file to match with the new
abstraction layer of migration ops.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/meson.build | 1 +
hw/vfio/migration-local.c | 453 ++
hw/vfio
_plugin_version" to check the interface version that
plugin supports. And then find and invoke function symbol named
"vfio_lm_get_plugin_ops" to get vendor device specific VFIOMigrationPluginOps
which will be used for saving/restoring device states during live migration.
Signed-
Since a VFIO device either uses In-Band or Out-of-Band live migration. So, the
region and plugin in VFIOMigration can be put into a union.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration-local.c | 33 ++---
include/hw/vfio/vfio-common.h | 6
Add an abstraction layer, VFIOMigrationOps, to the VFIO live migration
framework. Also adapt the In-Band approach to this abstraction layer by defining
its own VFIOMigrationOps callbacks.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration.c | 203
,
vfio_update_pending to vfio_migration_update_pending_local,
vfio_migration_init to vfio_migration_probe_local,
vfio_migration_exit to vfio_migration_exit_local.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration.c | 74 +++-
hw/vfio
vfio_migration_init() is mainly related to initialization of In-Band approach.
Migration handler registering may also be used by other approaches. so split it
from vfio_migration_init() and move it to vfio_migration_probe().
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio
Split functions of In-Band approach from common function, to prepare for
the introduction of generic VFIO live migration layer and another Sub-Ops.
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration.c | 64 ++---
1 file changed, 49
various checks of migration initialization conditions into
one function vfio_migration_check().
Signed-off-by: Lei Rao
Reviewed-by: Eddie Dong
---
hw/vfio/migration.c | 23 +--
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/hw/vfio/migration.c b/hw/vfio
Migration struct is a common data structure. Memory allocation of migration
struct is not unique to In-Band approach. So, move it from vfio_migration_init()
to vfio_migration_probe().
Signed-off-by: Lei Rao
---
hw/vfio/migration.c | 12 ++--
1 file changed, 6 insertions(+), 6 deletions
-intel/vfio-lm-plugin-example.git
Lei Rao (13):
vfio/migration: put together checks of migration initialization
conditions
vfio/migration: move migration struct allocation out of
vfio_migration_init
vfio/migration: move vfio_get_dev_region_info out of
vfio_migration_probe
vfio/mi
d-off-by: Lei Rao
---
hw/vfio/migration.c | 30 +++---
1 file changed, 15 insertions(+), 15 deletions(-)
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index 11ce87bb1a..e61c19171a 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -802,12 +802,12 @@ s
st-mode is unreasonable. After the patch, will be changed to the
following:
{ "execute": "query-colo-status" }
{"return": {"last-mode": "none", "mode": "primary", "reason": "none"}}
Signed-off-by: Lei Rao
--
dlock. So, we should
release the qemu_global_mutex before waiting colo thread ends.
Signed-off-by: Lei Rao
---
migration/migration.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/migration/migration.c b/migration/migration.c
index c2c84c7..6debb8b 100644
--- a/migration/migrat
imary_vm_do_failover() would call "qemu_file_shutdown
(s->rp_state.from_dst_file);" and later the migration_shutdown() would
do it again. So, we should set the s->rp_state.from_dst_file to NULL.
Signed-off-by: Like Xu
Signed-off-by: Lei Rao
---
migration/colo.c | 5 +++--
1 file c
From: "Rao, Lei"
Remove some unnecessary code to improve the performance of
the filter-rewriter module.
Signed-off-by: Lei Rao
---
net/colo-compare.c| 2 +-
net/colo.c| 31 ---
net/colo.h| 6 +++---
net/filter-rewri
d7e9609 in start_thread (arg=) at
pthread_create.c:477
9 0x7faa3d710293 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Signed-off-by: Lei Rao
---
migration/migration.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/migration/migration.c b/migration/migration.c
in
From: "Rao, Lei"
After the live migration, the related fd will be cleanup in
migration_incoming_state_destroy(). So, the qemu_close()
in colo_process_incoming_thread is not necessary.
Signed-off-by: Lei Rao
---
migration/colo.c | 5 -
1 file changed, 5 deletions(-)
diff --git a
From: Rao, Lei
The series of patches include:
Fixed some bugs of qemu crash and segment fault.
Optimized the function of fill_connection_key.
Remove some unnecessary code to improve COLO.
Rao, Lei (7):
Some minor optimizations for COLO
Fixed qemu crash when guest powe
From: "Rao, Lei"
Signed-off-by: Lei Rao
---
migration/colo.c | 2 +-
net/colo-compare.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/migration/colo.c b/migration/colo.c
index 79fa1f6..616dc00 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -15
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