misc/pvpanic: add shutdown event definition

Shutdown requests are normally hardware dependent.
By extending pvpanic to also handle shutdown requests, guests can
submit such requests with an easily implementable and cross-platform
mechanism.

The event was added to the specification in qemu commit
73279cecca03 ("docs/specs/pvpanic: document shutdown event").

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240313-pvpanic-shutdown-header-v1-2-7f1970d66366@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/uapi/misc/pvpanic.h b/include/uapi/misc/pvpanic.h
index 9ea6a965ca7a16a1d9c38f1203c66567359d79e8..3f1745cd1b52ab49e029b4e058be13f106016cce 100644 (file)
--- a/include/uapi/misc/pvpanic.h
+++ b/include/uapi/misc/pvpanic.h
@@ -7,5 +7,6 @@
 
 #define PVPANIC_PANICKED       _BITUL(0)
 #define PVPANIC_CRASH_LOADED   _BITUL(1)
+#define PVPANIC_SHUTDOWN       _BITUL(2)
 
 #endif /* __PVPANIC_H__ */