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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2015-05-21 13:24:12 +0100 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2015-06-12 06:54:01 +0200 |
| commit | f796baa1b3efcf105ba3a465f797e05ac2b3dcfc (patch) | |
| tree | c01eca58610333bb362a8422b42144c9c3cd3235 | |
| parent | b3af1bc9d21e6bec7dfd283d91b465c9f815b6d6 (diff) | |
| download | qemu-f796baa1b3efcf105ba3a465f797e05ac2b3dcfc.zip qemu-f796baa1b3efcf105ba3a465f797e05ac2b3dcfc.tar.gz qemu-f796baa1b3efcf105ba3a465f797e05ac2b3dcfc.tar.bz2 | |
Split header writing out of qemu_savevm_state_begin
Split qemu_savevm_state_begin to:
qemu_savevm_state_header That writes the initial file header.
qemu_savevm_state_begin That sets up devices and does the first
device pass.
Used later in postcopy.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
| -rw-r--r-- | include/sysemu/sysemu.h | 1 | ||||
| -rw-r--r-- | migration/migration.c | 1 | ||||
| -rw-r--r-- | migration/savevm.c | 11 | ||||
| -rw-r--r-- | trace-events | 1 |
4 files changed, 11 insertions, 3 deletions
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 853d90a..ef793f7 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -84,6 +84,7 @@ void qemu_announce_self(void); bool qemu_savevm_state_blocked(Error **errp); void qemu_savevm_state_begin(QEMUFile *f, const MigrationParams *params); +void qemu_savevm_state_header(QEMUFile *f); int qemu_savevm_state_iterate(QEMUFile *f); void qemu_savevm_state_complete(QEMUFile *f); void qemu_savevm_state_cancel(void); diff --git a/migration/migration.c b/migration/migration.c index 5d77046..438bf91 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -738,6 +738,7 @@ static void *migration_thread(void *opaque) int64_t start_time = initial_time; bool old_vm_running = false; + qemu_savevm_state_header(s->file); qemu_savevm_state_begin(s->file, &s->params); s->setup_time = qemu_clock_get_ms(QEMU_CLOCK_HOST) - setup_start; diff --git a/migration/savevm.c b/migration/savevm.c index 2b0aa65..903dbeb 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -625,6 +625,13 @@ bool qemu_savevm_state_blocked(Error **errp) return false; } +void qemu_savevm_state_header(QEMUFile *f) +{ + trace_savevm_state_header(); + qemu_put_be32(f, QEMU_VM_FILE_MAGIC); + qemu_put_be32(f, QEMU_VM_FILE_VERSION); +} + void qemu_savevm_state_begin(QEMUFile *f, const MigrationParams *params) { @@ -639,9 +646,6 @@ void qemu_savevm_state_begin(QEMUFile *f, se->ops->set_params(params, se->opaque); } - qemu_put_be32(f, QEMU_VM_FILE_MAGIC); - qemu_put_be32(f, QEMU_VM_FILE_VERSION); - QTAILQ_FOREACH(se, &savevm_state.handlers, entry) { int len; @@ -851,6 +855,7 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp) } qemu_mutex_unlock_iothread(); + qemu_savevm_state_header(f); qemu_savevm_state_begin(f, ¶ms); qemu_mutex_lock_iothread(); diff --git a/trace-events b/trace-events index b64e125..1abca7a 100644 --- a/trace-events +++ b/trace-events @@ -1186,6 +1186,7 @@ qemu_loadvm_state_section_startfull(uint32_t section_id, const char *idstr, uint savevm_section_start(const char *id, unsigned int section_id) "%s, section_id %u" savevm_section_end(const char *id, unsigned int section_id, int ret) "%s, section_id %u -> %d" savevm_state_begin(void) "" +savevm_state_header(void) "" savevm_state_iterate(void) "" savevm_state_complete(void) "" savevm_state_cancel(void) "" |