diff options
| author | Lidong Chen <jemmy858585@gmail.com> | 2018-08-06 21:29:27 +0800 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2018-08-22 12:12:07 +0200 |
| commit | ccb7e1b5a6f4a6fac98be38f16d96fc48db69103 (patch) | |
| tree | 4e4a884eae4b74b8c366d0319779cf1c931a147d /migration/rdma.c | |
| parent | 4cbc9c7ffd95d2702cf7ffb3bfdf3f1f0ffdca07 (diff) | |
migration: disable RDMA WRITE after postcopy started
RDMA WRITE operations are performed with no notification to the destination
qemu, then the destination qemu can not wakeup. This patch disable RDMA WRITE
after postcopy started.
Signed-off-by: Lidong Chen <lidongchen@tencent.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'migration/rdma.c')
| -rw-r--r-- | migration/rdma.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/migration/rdma.c b/migration/rdma.c index 8bd7159059..76424a5e38 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -2921,6 +2921,10 @@ static size_t qemu_rdma_save_page(QEMUFile *f, void *opaque, CHECK_ERROR_STATE(); + if (migrate_get_current()->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) { + return RAM_SAVE_CONTROL_NOT_SUPP; + } + qemu_fflush(f); if (size > 0) { @@ -3480,6 +3484,10 @@ static int qemu_rdma_registration_start(QEMUFile *f, void *opaque, CHECK_ERROR_STATE(); + if (migrate_get_current()->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) { + return 0; + } + trace_qemu_rdma_registration_start(flags); qemu_put_be64(f, RAM_SAVE_FLAG_HOOK); qemu_fflush(f); @@ -3502,6 +3510,10 @@ static int qemu_rdma_registration_stop(QEMUFile *f, void *opaque, CHECK_ERROR_STATE(); + if (migrate_get_current()->state == MIGRATION_STATUS_POSTCOPY_ACTIVE) { + return 0; + } + qemu_fflush(f); ret = qemu_rdma_drain_cq(f, rdma); |