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| author | Fabiano Rosas <farosas@suse.de> | 2024-02-29 12:30:16 -0300 |
|---|---|---|
| committer | Peter Xu <peterx@redhat.com> | 2024-03-01 15:42:04 +0800 |
| commit | decdc76772c453ff1444612e910caa0d45cd8eac (patch) | |
| tree | 508c2a76e799a056fd00b89f1e69ff98a4d67357 /migration/migration.c | |
| parent | a49d15a38d3db0aca7e55850c036d1abbc09a0ea (diff) | |
| download | qemu-decdc76772c453ff1444612e910caa0d45cd8eac.zip qemu-decdc76772c453ff1444612e910caa0d45cd8eac.tar.gz qemu-decdc76772c453ff1444612e910caa0d45cd8eac.tar.bz2 | |
migration/multifd: Add mapped-ram support to fd: URI
If we receive a file descriptor that points to a regular file, there's
nothing stopping us from doing multifd migration with mapped-ram to
that file.
Enable the fd: URI to work with multifd + mapped-ram.
Note that the fds passed into multifd are duplicated because we want
to avoid cross-thread effects when doing cleanup (i.e. close(fd)). The
original fd doesn't need to be duplicated because monitor_get_fd()
transfers ownership to the caller.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240229153017.2221-23-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration/migration.c')
| -rw-r--r-- | migration/migration.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/migration/migration.c b/migration/migration.c index b9baab5..a49fcd5 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -140,6 +140,10 @@ static bool transport_supports_multi_channels(MigrationAddress *addr) if (addr->transport == MIGRATION_ADDRESS_TYPE_SOCKET) { SocketAddress *saddr = &addr->u.socket; + if (saddr->type == SOCKET_ADDRESS_TYPE_FD) { + return migrate_mapped_ram(); + } + return (saddr->type == SOCKET_ADDRESS_TYPE_INET || saddr->type == SOCKET_ADDRESS_TYPE_UNIX || saddr->type == SOCKET_ADDRESS_TYPE_VSOCK); |