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runstate: cleanup reboot and panic actions

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The possible choices for panic, reset and watchdog actions are inconsistent.

"-action panic=poweroff" should be renamed to "-action panic=shutdown"
on the command line.  This is because "-action panic=poweroff" and
"-action watchdog=poweroff" have slightly different semantics, the first
does an unorderly exit while the second goes through qemu_cleanup().  With
this change, -no-shutdown would not have to change "-action panic=pause"
"pause", just like it does not have to change the reset action.

"-action reboot=none" should be renamed to "-action reboot=reset".
This should be self explanatory, since for example "-action panic=none"
lets the guest proceed without taking any action.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2021-01-20 14:30:27 +01:00
parent fef80ea073
commit c27025e044
5 changed files with 17 additions and 14 deletions
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7
softmmu/runstate.c
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@ -471,14 +471,15 @@ void qemu_system_guest_panicked(GuestPanicInformation *info)
}
/*
* TODO: Currently the available panic actions are: none, pause, and
* poweroff, but in principle debug and reset could be supported as well.
* shutdown, but in principle debug and reset could be supported as well.
* Investigate any potential use cases for the unimplemented actions.
*/
if (panic_action == PANIC_ACTION_PAUSE) {
if (panic_action == PANIC_ACTION_PAUSE
|| (panic_action == PANIC_ACTION_SHUTDOWN && shutdown_action == SHUTDOWN_ACTION_PAUSE)) {
qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_PAUSE,
!!info, info);
vm_stop(RUN_STATE_GUEST_PANICKED);
} else if (panic_action == PANIC_ACTION_POWEROFF) {
} else if (panic_action == PANIC_ACTION_SHUTDOWN) {
qapi_event_send_guest_panicked(GUEST_PANIC_ACTION_POWEROFF,
!!info, info);
vm_stop(RUN_STATE_GUEST_PANICKED);