add a boot parameter to set reboot timeout
Added an option to let qemu transfer a configuration file to bios,
"etc/boot-fail-wait", which could be specified by command
-boot reboot-timeout=T
T have a max value of 0xffff, unit is ms.
With this option, guest will wait for a given time if not find
bootabled device, then reboot. If reboot-timeout is '-1', guest
will not reboot, qemu passes '-1' to bios by default.
This feature need the new seabios's support.
Seabios pulls the value from the fwcfg "file" interface, this
interface is used because SeaBIOS needs a reliable way of
obtaining a name, value size, and value. It in no way requires
that there be a real file on the user's host machine.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/vl.c b/vl.c
index 599d17a..8d305ca 100644
--- a/vl.c
+++ b/vl.c
@@ -2632,7 +2632,8 @@
{
static const char * const params[] = {
"order", "once", "menu",
- "splash", "splash-time", NULL
+ "splash", "splash-time",
+ "reboot-timeout", NULL
};
char buf[sizeof(boot_devices)];
char *standard_boot_devices;
