kvmtool: assume dead vcpus are paused too

vcpus that have exited their main loop can be treated as paused too when we're
trying to pause the machine to change mappings.

This might happen during shutdown when we're trying to unmap ioports but some
of the vcpus already exited.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/kvm.c b/kvm.c
index 10ed2300..07d4cc3f 100644
--- a/kvm.c
+++ b/kvm.c
@@ -442,7 +442,10 @@ void kvm__pause(struct kvm *kvm)
 	if (pause_event < 0)
 		die("Failed creating pause notification event");
 	for (i = 0; i < kvm->nrcpus; i++)
-		pthread_kill(kvm->cpus[i]->thread, SIGKVMPAUSE);
+		if (kvm->cpus[i]->is_running)
+			pthread_kill(kvm->cpus[i]->thread, SIGKVMPAUSE);
+		else
+			paused_vcpus++;
 
 	while (paused_vcpus < kvm->nrcpus) {
 		u64 cur_read;