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| author | Zhang Chen <zhangckid@gmail.com> | 2018-09-03 12:38:54 +0800 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2018-10-19 11:15:03 +0800 |
| commit | 3f6df99d9dc8ce33deae1835e96e659063fa3037 (patch) | |
| tree | 578f2bbbc083d669a10b5ce4dd77f4952d19b0b8 /migration/savevm.h | |
| parent | f56c0065b8dd65489621bb7ca1a94d8004d68da1 (diff) | |
| download | qemu-3f6df99d9dc8ce33deae1835e96e659063fa3037.zip qemu-3f6df99d9dc8ce33deae1835e96e659063fa3037.tar.gz qemu-3f6df99d9dc8ce33deae1835e96e659063fa3037.tar.bz2 | |
savevm: split the process of different stages for loadvm/savevm
There are several stages during loadvm/savevm process. In different stage,
migration incoming processes different types of sections.
We want to control these stages more accuracy, it will benefit COLO
performance, we don't have to save type of QEMU_VM_SECTION_START
sections everytime while do checkpoint, besides, we want to separate
the process of saving/loading memory and devices state.
So we add three new helper functions: qemu_load_device_state() and
qemu_savevm_live_state() to achieve different process during migration.
Besides, we make qemu_loadvm_state_main() and qemu_save_device_state()
public, and simplify the codes of qemu_save_device_state() by calling the
wrapper qemu_savevm_state_header().
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'migration/savevm.h')
| -rw-r--r-- | migration/savevm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/migration/savevm.h b/migration/savevm.h index 8373c2f..51a4b9c 100644 --- a/migration/savevm.h +++ b/migration/savevm.h @@ -56,8 +56,12 @@ void qemu_savevm_send_postcopy_ram_discard(QEMUFile *f, const char *name, uint64_t *start_list, uint64_t *length_list); void qemu_savevm_send_colo_enable(QEMUFile *f); +void qemu_savevm_live_state(QEMUFile *f); +int qemu_save_device_state(QEMUFile *f); int qemu_loadvm_state(QEMUFile *f); void qemu_loadvm_state_cleanup(void); +int qemu_loadvm_state_main(QEMUFile *f, MigrationIncomingState *mis); +int qemu_load_device_state(QEMUFile *f); #endif |