From: Vitaly Kuznetsov <vkuznets@redhat.com>
Date: Wed, 23 Nov 2016 12:38:45 +0000 (+0100)
Subject: xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b36585a0a3c169612f3105139464a2da1d3ecc03;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

xen/events: use xen_vcpu_id mapping for EVTCHNOP_status

EVTCHNOP_status hypercall returns Xen's idea of vcpu id so we need to
compare it against xen_vcpu_id mapping, not the Linux cpu id.

Suggested-by: Radim Krcmar <rkrcmar@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
---

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 9ecfcdcdd6d6..137bd0e799e7 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -948,7 +948,7 @@ static int find_virq(unsigned int virq, unsigned int cpu)
 			continue;
 		if (status.status != EVTCHNSTAT_virq)
 			continue;
-		if (status.u.virq == virq && status.vcpu == cpu) {
+		if (status.u.virq == virq && status.vcpu == xen_vcpu_nr(cpu)) {
 			rc = port;
 			break;
 		}