From: Paul Durrant <pdurrant@amazon.com>
Date: Wed, 15 Nov 2023 16:27:36 +0000 (+0000)
Subject: don't treat lack of vcpu_info as a hard error
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=refs%2Fheads%2Fshared-info8;p=people%2Fpauldu%2Flinux.git

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 c49441b44477..0997e9d8b1ca 100644
--- 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;