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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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8
qemu-options.hx
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@ -3900,12 +3900,12 @@ SRST
ERST
DEF("action", HAS_ARG, QEMU_OPTION_action,
"-action reboot=none|shutdown\n"
" action when guest reboots [default=none]\n"
"-action reboot=reset|shutdown\n"
" action when guest reboots [default=reset]\n"
"-action shutdown=poweroff|pause\n"
" action when guest shuts down [default=poweroff]\n"
"-action panic=poweroff|pause|none\n"
" action when guest panics [default=poweroff]\n"
"-action panic=pause|shutdown|none\n"
" action when guest panics [default=shutdown]\n"
"-action watchdog=reset|shutdown|poweroff|inject-nmi|pause|debug|none\n"
" action when watchdog fires [default=reset]\n",
QEMU_ARCH_ALL)