don't treat lack of vcpu_info as a hard error

it can be transient, so just deliver via the shadow

Signed-off-by: Paul Durrant <pdurrant@amazon.com>

diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c
index c49441b444772d2e40458616f51a4e3aed4327c1..0997e9d8b1ca9b0c38724bc1142d1b8e3e44132b 100644 (file)
--- a/arch/x86/kvm/xen.c
+++ b/arch/x86/kvm/xen.c
@@ -1739,9 +1739,6 @@ int kvm_xen_set_evtchn_fast(struct kvm_xen_evtchn *xe, struct kvm *kvm)
                WRITE_ONCE(xe->vcpu_idx, vcpu->vcpu_idx);
        }
 
-       if (!vcpu->arch.xen.vcpu_info_cache.active)
-               return -EINVAL;
-
        if (xe->port >= max_evtchn_port(kvm))
                return -EINVAL;