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[PATCH v7 4/7] hw/misc/pvpanic: add support for normal shutdowns
From: |
Thomas Weißschuh |
Subject: |
[PATCH v7 4/7] hw/misc/pvpanic: add support for normal shutdowns |
Date: |
Sat, 23 Mar 2024 10:39:09 +0100 |
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.
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---
hw/misc/pvpanic.c | 5 +++++
include/hw/misc/pvpanic.h | 2 +-
include/sysemu/runstate.h | 1 +
system/runstate.c | 5 +++++
4 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index a4982cc5928e..0e9505451a7a 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -40,6 +40,11 @@ static void handle_event(int event)
qemu_system_guest_crashloaded(NULL);
return;
}
+
+ if (event & PVPANIC_SHUTDOWN) {
+ qemu_system_guest_pvshutdown();
+ return;
+ }
}
/* return supported events on read */
diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h
index 926aa64838f9..9ffb08bf08bf 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -25,7 +25,7 @@
#endif
#define PVPANIC_SHUTDOWN (1 << 2)
-#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED)
+#define PVPANIC_EVENTS (PVPANIC_PANICKED | PVPANIC_CRASH_LOADED |
PVPANIC_SHUTDOWN)
#define TYPE_PVPANIC_ISA_DEVICE "pvpanic"
#define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci"
diff --git a/include/sysemu/runstate.h b/include/sysemu/runstate.h
index 0117d243c4ed..e210a37abf0f 100644
--- a/include/sysemu/runstate.h
+++ b/include/sysemu/runstate.h
@@ -104,6 +104,7 @@ void qemu_system_killed(int signal, pid_t pid);
void qemu_system_reset(ShutdownCause reason);
void qemu_system_guest_panicked(GuestPanicInformation *info);
void qemu_system_guest_crashloaded(GuestPanicInformation *info);
+void qemu_system_guest_pvshutdown(void);
bool qemu_system_dump_in_progress(void);
#endif
diff --git a/system/runstate.c b/system/runstate.c
index d6ab860ecaa7..572499513034 100644
--- a/system/runstate.c
+++ b/system/runstate.c
@@ -572,6 +572,11 @@ void qemu_system_guest_crashloaded(GuestPanicInformation
*info)
qapi_free_GuestPanicInformation(info);
}
+void qemu_system_guest_pvshutdown(void)
+{
+ qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
+}
+
void qemu_system_reset_request(ShutdownCause reason)
{
if (reboot_action == REBOOT_ACTION_SHUTDOWN &&
--
2.44.0
- [PATCH v7 0/7] hw/misc/pvpanic: add support for normal shutdowns, Thomas Weißschuh, 2024/03/23
- [PATCH v7 2/7] tests/qtest/pvpanic: use centralized definition of supported events, Thomas Weißschuh, 2024/03/23
- [PATCH v7 3/7] hw/misc/pvpanic: add local definition for PVPANIC_SHUTDOWN, Thomas Weißschuh, 2024/03/23
- [PATCH v7 4/7] hw/misc/pvpanic: add support for normal shutdowns,
Thomas Weißschuh <=
- [PATCH v7 1/7] hw/misc/pvpanic: centralize definition of supported events, Thomas Weißschuh, 2024/03/23
- [PATCH v7 7/7] Revert "docs/specs/pvpanic: mark shutdown event as not implemented", Thomas Weißschuh, 2024/03/23
- [PATCH v7 5/7] pvpanic: Emit GUEST_PVSHUTDOWN QMP event on pvpanic shutdown signal, Thomas Weißschuh, 2024/03/23
- [PATCH v7 6/7] tests/qtest/pvpanic: add tests for pvshutdown event, Thomas Weißschuh, 2024/03/23