The KVM_EXIT_SYSTEM_EVENT exit reason was added to define
architecture independent system-wide events for a Guest.
Currently, it is used by in-kernel PSCI-0.2 emulation of
KVM ARM/ARM64 to inform user space about PSCI SYSTEM_OFF
or PSCI SYSTEM_RESET request.
For now, we simply treat all system-wide guest events as
shutdown request in KVMTOOL.
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@xxxxxxxxxx>
Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxx>
Reviewed-by: Andre Przywara <andre.przywara@xxxxxxx>
---
tools/kvm/kvm-cpu.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/tools/kvm/kvm-cpu.c b/tools/kvm/kvm-cpu.c
index ee0a8ec..5a863b1 100644
--- a/tools/kvm/kvm-cpu.c
+++ b/tools/kvm/kvm-cpu.c
@@ -160,6 +160,27 @@ int kvm_cpu__start(struct kvm_cpu *cpu)
goto exit_kvm;
case KVM_EXIT_SHUTDOWN:
goto exit_kvm;
+ case KVM_EXIT_SYSTEM_EVENT:
+ /*
+ * Print the type of system event and
+ * treat all system events as shutdown request.
+ */
+ switch (cpu->kvm_run->system_event.type) {
+ case KVM_SYSTEM_EVENT_SHUTDOWN:
+ pr_info("shutdown system event");
+ goto exit_kvm;
+ case KVM_SYSTEM_EVENT_RESET:
+ pr_info("reset system event");
+ pr_info("KVMTOOL does not support VM reset");
+ pr_info("please re-launch the VM manually");
+ goto exit_kvm;
+ default:
+ pr_warning("unknown system event type=%d",
+ cpu->kvm_run->system_event.type);
+ pr_info("exiting KVMTOOL");
+ goto exit_kvm;
+ };
+ break;
default: {
bool ret;
--
1.7.9.5
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