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| author | David Hildenbrand <david@redhat.com> | 2020-06-26 09:22:36 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-07-02 05:54:59 -0400 |
| commit | 18b1d3c952d00ef1881852ee46cf41783dacf530 (patch) | |
| tree | 38473dcc5060f1509b2c93265608f56e51d7cac7 /migration/migration.c | |
| parent | 5f1f1902f8e4020f27b4e35631a38c4e68d9be54 (diff) | |
| download | qemu-18b1d3c952d00ef1881852ee46cf41783dacf530.zip qemu-18b1d3c952d00ef1881852ee46cf41783dacf530.tar.gz qemu-18b1d3c952d00ef1881852ee46cf41783dacf530.tar.bz2 | |
migration/colo: Use ram_block_discard_disable()
COLO will copy all memory in a RAM block, disable discarding of RAM.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Lukas Straub <lukasstraub2@web.de>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Hailiang Zhang <zhang.zhanghailiang@huawei.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200626072248.78761-10-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'migration/migration.c')
| -rw-r--r-- | migration/migration.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/migration/migration.c b/migration/migration.c index d365d82..92e44e0 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -338,12 +338,18 @@ bool migration_incoming_colo_enabled(void) void migration_incoming_disable_colo(void) { + ram_block_discard_disable(false); migration_colo_enabled = false; } -void migration_incoming_enable_colo(void) +int migration_incoming_enable_colo(void) { + if (ram_block_discard_disable(true)) { + error_report("COLO: cannot disable RAM discard"); + return -EBUSY; + } migration_colo_enabled = true; + return 0; } void migrate_add_address(SocketAddress *address) |