For qemu upgrade and restart, we will re-exec() qemu with the same argv.
However, qemu must start in a paused state and wait for the cprload command,
and the original argv might not contain the -S option. To avoid modifying
argv, provide the QEMU_START_FREEZE environment variable. If
QEMU_START_FREEZE is set, then set autostart=0, like the -S option.
Signed-off-by: Steve Sistare <steven.sist...@oracle.com>
---
softmmu/vl.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/softmmu/vl.c b/softmmu/vl.c
index 951994f..7016e39 100644
--- a/softmmu/vl.c
+++ b/softmmu/vl.c
@@ -4501,6 +4501,11 @@ void qemu_init(int argc, char **argv, char **envp)
exit(0);
}
+ if (getenv("QEMU_START_FREEZE")) {
+ unsetenv("QEMU_START_FREEZE");
+ autostart = 0;
+ }
+
if (incoming) {
Error *local_err = NULL;
qemu_start_incoming_migration(incoming, &local_err);
--
1.8.3.1
