From: Nikita Lapshin
It is a modified load part from previous patch.
Implemented new rp listen thread for snapshot-tool. Also implemented
functions for starting postcopy.
This mode can be turned on by specifying --postcopy flag.
Signed-off-by: Nikita Lapshin
---
include/qemu-snapshot.h
From: Nikita Lapshin
Load snapshot from qcow2 file. This part also work only with ram part
and send vmstate part as it was saved previously without parsing.
Here also migration code was reused but now it is savevm part. Tool replace
ram handlers as it did before in tool save part but now
From: Nikita Lapshin
Snapshot save are done in two stages. First tool save vmstate part. It must
be guaranteed that tool will get vmstate part only. This is because tool
won't parse this stream and will just save it non-modified.
Second stage is ram sending. Also it must be guarantee that ram
From: Nikita Lapshin
This commit enables few functions to simplify block layer work
for qemu-snapshot tool.
Signed-off-by: Nikita Lapshin
---
include/qemu-snapshot.h | 3 +
migration/meson.build| 1 +
migration/qemu-snapshot-io.c | 112 +++
3
From: Nikita Lapshin
Execution environment, command-line argument parsing, usage/version info etc.
Signed-off-by: Nikita Lapshin
---
include/qemu-snapshot.h | 65 ++
migration/qemu-snapshot.c | 57 +
qemu-snapshot.c | 433 ++
3 files
From: Nikita Lapshin
Move RAM_SAVE_FLAG_xxx defines from migration/ram.c to migration/ram.h
Signed-off-by: Nikita Lapshin
---
migration/ram.c | 16
migration/ram.h | 16
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/migration/ram.c b
From: Nikita Lapshin
qemu_ftell() will return wrong value for non-writable QEMUFile.
This happens due to call qemu_fflush() inside qemu_ftell(), this
function won't flush if file is readable.
Signed-off-by: Nikita Lapshin
---
migration/qemu-file.c | 3 ++-
1 file changed, 2 insertions(+), 1
From: Nikita Lapshin
'ram' parameter enable RAM sections in migration stream. If it
isn't specified it will be skipped.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 17 -
migration/migration.h | 1 +
migration/ram.c | 6 ++
3 files changed, 23
From: Nikita Lapshin
For next changes it is convenient to make all decisions about
sections skipping in one function.
Signed-off-by: Nikita Lapshin
---
migration/savevm.c | 54 --
1 file changed, 28 insertions(+), 26 deletions(-)
diff --git
From: Nikita Lapshin
All other parts works just like existed capabilities. Thus there is
no need to make new tests. Though RAM and vmstate are new so here
is new test for that parts.
Signed-off-by: Nikita Lapshin
---
.../tests/migrate-ram-stream-content-test | 96
From: Nikita Lapshin
This new optional parameter contains inormation about migration
stream parts to be sent (such as RAM, block, bitmap). This looks
better than using capabilities to solve problem of dividing
migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 47
From: Nikita Lapshin
Implemented RAMBlock is used for managing ram block from VM.
This structure is close to existing RAMBlock in migration but
has few differences.
May be it should be replaced with existing RAMBlock it can lead to
lots of reuses.
Signed-off-by: Nikita Lapshin
---
migration
From: Nikita Lapshin
This script is used for RAM capabilities test. But it cannot work
in case of no vm description in migration stream.
So new flag is added to allow work this script with ram-only
migration stream.
Signed-off-by: Nikita Lapshin
---
scripts/analyze-migration.py | 19
From: Nikita Lapshin
This patch enables and disable block in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index ad789915ce..d81f3c6891 100644
From: Nikita Lapshin
Tool uses part of migration code thus new lib with stubs for migration
code is added here.
Signed-off-by: Nikita Lapshin
---
meson.build | 18 ++
migration/meson.build | 3 ++-
2 files changed, 20 insertions(+), 1 deletion(-)
diff --git
From: Nikita Lapshin
This patch enables and disable block in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index ad789915ce..d81f3c6891 100644
From: Nikita Lapshin
All other parts works just like existed capabilities. Thus there is
no need to make new tests. Though RAM and vmstate are new so here
is new test for that parts.
Signed-off-by: Nikita Lapshin
---
.../tests/migrate-ram-stream-content-test | 96
From: Nikita Lapshin
This patch enables and disable dirty-bitmaps in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index bbf9b6aad1..ad789915ce
From: Nikita Lapshin
Changes v2 -> v3
* Refactored tool code to decrease duplications of migration code.
* Used sequential migration for saving which means that vmstate
will be send first and only after that ram part will be sent.
For this purpose stream-content-list paramter was u
From: Nikita Lapshin
This new optional parameter contains inormation about migration
stream parts to be sent (such as RAM, block, bitmap). This looks
better than using capabilities to solve problem of dividing
migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 47
From: Nikita Lapshin
Now we can disable and enable vmstate part by stream_content parameter.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 10 --
migration/savevm.c| 15 +++
2 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/migration
From: Nikita Lapshin
This patch enables and disable block in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index ad789915ce..d81f3c6891 100644
From: Nikita Lapshin
This patch enables and disable dirty-bitmaps in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index bbf9b6aad1..ad789915ce
From: Nikita Lapshin
We want to implement exteranl bg-snapshot tool for saving RAM. For this it
is important to be able manage migration stream because tool has no idea
about non-RAM part and how to parse it.
This paramter provides gurantee about migration content. Now there are 4
parts
From: Nikita Lapshin
'ram' parameter enable RAM sections in migration stream. If it
isn't specified it will be skipped.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 17 -
migration/migration.h | 1 +
migration/ram.c | 6 ++
3 files changed, 23
From: Nikita Lapshin
For next changes it is convenient to make all decisions about
sections skipping in one function.
Signed-off-by: Nikita Lapshin
---
migration/savevm.c | 54 --
1 file changed, 28 insertions(+), 26 deletions(-)
diff --git
From: Nikita Lapshin
This patch enables and disable dirty-bitmaps in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/migration/migration.c b/migration/migration.c
index bbf9b6aad1..ad789915ce
From: Nikita Lapshin
This script is used for RAM capabilities test. But it cannot work
in case of no vm description in migration stream.
So new flag is added to allow work this script with ram-only
migration stream.
Signed-off-by: Nikita Lapshin
---
scripts/analyze-migration.py | 19
From: Nikita Lapshin
Now we can disable and enable vmstate part by stream_content parameter.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 10 --
migration/savevm.c| 15 +++
2 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/migration
On 3/23/22 16:57, Vladimir Sementsov-Ogievskiy wrote:
23.03.2022 13:53, Nikita Lapshin wrote:
From: Nikita Lapshin
This script is used for RAM capabilities test. But it cannot work
in case of no vm description in migration stream.
So new flag is added to allow work this script with ram-only
Use scripts/analyze-migration.py to split migration stream into
sections and analyze its output.
Signed-off-by: Nikita Lapshin
---
.../tests/migrate-ram-capabilities-test | 96 +++
.../tests/migrate-ram-capabilities-test.out | 5 +
2 files changed, 101 insertions
If this capability is enabled migration stream
will have RAM section only.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 20 +++-
migration/migration.h | 1 +
migration/savevm.c| 11 ++-
qapi/migration.json | 7 +--
4 files changed, 35 insertions
This script is used for RAM capabilities test. But it cannot work
in case of no vm description in migration stream.
So new flag is added to allow work this script with ram-only
migration stream.
Signed-off-by: Nikita Lapshin
---
scripts/analyze-migration.py | 19 ---
1 file
For new migration capabilities upcoming we need to use something
like is_ram for this purpose. This member of struction is true
not only for RAM so it should be renamed.
Signed-off-by: Nikita Lapshin
---
migration/savevm.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff
This capability disable RAM section in migration stream.
Signed-off-by: Nikita Lapshin
---
migration/migration.c | 9 +
migration/migration.h | 1 +
migration/ram.c | 6 ++
qapi/migration.json | 8 +---
4 files changed, 21 insertions(+), 3 deletions(-)
diff --git
For next changes it is convenient to make all decisions about
sections skipping in one function.
Signed-off-by: Nikita Lapshin
---
migration/savevm.c | 42 --
1 file changed, 20 insertions(+), 22 deletions(-)
diff --git a/migration/savevm.c b/migration
allow to send only RAM part
or non-RAM part so tool can save non-RAM part without special handlers.
RAM will be saved with special handlers for postcopy load.
Nikita Lapshin (6):
migration: is_ram changed to is_iterable
migration: should_skip() implemented
migration: Add no-ram capability
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