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From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: xen-devel@lists.xenproject.org
Cc: linux-kernel@vger.kernel.org,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Juergen Gross <jgross@suse.com>,
	David Vrabel <david.vrabel@citrix.com>
Subject: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
Date: Wed, 23 Nov 2016 13:38:45 +0100	[thread overview]
Message-ID: <1479904725-12812-1-git-send-email-vkuznets@redhat.com> (raw)

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>
---
 drivers/xen/events/events_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 9ecfcdc..137bd0e 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;
 		}
-- 
2.7.4

             reply	other threads:[~2016-11-23 12:38 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-23 12:38 Vitaly Kuznetsov [this message]
2016-11-23 16:17 ` [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Boris Ostrovsky
2016-11-23 16:17 ` Boris Ostrovsky
2016-11-30  6:46 ` Juergen Gross
2016-11-30  6:46 ` Juergen Gross
2016-11-23 12:38 Vitaly Kuznetsov

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