From c753e8e72548493d2a110c0482c4a987a733b033 Mon Sep 17 00:00:00 2001 From: Alejandro Jimenez Date: Fri, 11 Dec 2020 17:31:52 -0500 Subject: vl: Add option to avoid stopping VM upon guest panic The current default action of pausing a guest after a panic event is received leaves the responsibility to resume guest execution to the management layer. The reasons for this behavior are discussed here: https://lore.kernel.org/qemu-devel/52148F88.5000509@redhat.com/ However, in instances like the case of older guests (Linux and Windows) using a pvpanic device but missing support for the PVPANIC_CRASHLOADED event, and Windows guests using the hv-crash enlightenment, it is desirable to allow the guests to continue running after sending a PVPANIC_PANICKED event. This allows such guests to proceed to capture a crash dump and automatically reboot without intervention of a management layer. Add an option to avoid stopping a VM after a panic event is received, by passing: -action panic=none in the command line arguments, or during runtime by using an upcoming QMP command. Suggested-by: Paolo Bonzini Signed-off-by: Alejandro Jimenez Message-Id: <1607705564-26264-3-git-send-email-alejandro.j.jimenez@oracle.com> [Do not fix panic action in the variable, instead modify -no-shutdown. - Paolo] Signed-off-by: Paolo Bonzini --- include/sysemu/runstate-action.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/sysemu') diff --git a/include/sysemu/runstate-action.h b/include/sysemu/runstate-action.h index 51a461c4ac..cff45a047b 100644 --- a/include/sysemu/runstate-action.h +++ b/include/sysemu/runstate-action.h @@ -14,5 +14,6 @@ /* in softmmu/runstate-action.c */ extern RebootAction reboot_action; extern ShutdownAction shutdown_action; +extern PanicAction panic_action; #endif /* RUNSTATE_ACTION_H */ -- cgit v1.2.3-55-g7522