The upcoming patches need a way to detect if the VM, as
a whole, has started. Hence, unionize kvm_vcpu_has_run_once()
of all the vcpus of the VM and build kvm_vm_has_run_once()
to achieve the functionality.
No functional change intended.
Signed-off-by: Raghavendra Rao Ananta <rananta@xxxxxxxxxx>
---
include/linux/kvm_host.h | 2 ++
virt/kvm/kvm_main.c | 17 +++++++++++++++++
2 files changed, 19 insertions(+)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index b373929c71eb..102e00c0e21c 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1854,4 +1854,6 @@ static inline bool kvm_vcpu_has_run_once(struct kvm_vcpu *vcpu)
return vcpu->has_run_once;
}
+bool kvm_vm_has_run_once(struct kvm *kvm);
+
#endif
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1ec8a8e959b2..3d8d96e8f61d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4339,6 +4339,23 @@ static int kvm_vm_ioctl_get_stats_fd(struct kvm *kvm)
return fd;
}
+bool kvm_vm_has_run_once(struct kvm *kvm)
+{
+ int i, ret = false;
+ struct kvm_vcpu *vcpu;
+
+ mutex_lock(&kvm->lock);
+
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ ret = kvm_vcpu_has_run_once(vcpu);
+ if (ret)
+ break;
+ }
+
+ mutex_unlock(&kvm->lock);
+ return ret;
+}
+
static long kvm_vm_ioctl(struct file *filp,
unsigned int ioctl, unsigned long arg)
{
--
2.34.0.rc1.387.gb447b232ab-goog
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