* [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
@ 2016-11-23 12:38 Vitaly Kuznetsov
2016-11-23 16:17 ` Boris Ostrovsky
2016-11-30 6:46 ` Juergen Gross
0 siblings, 2 replies; 3+ messages in thread
From: Vitaly Kuznetsov @ 2016-11-23 12:38 UTC (permalink / raw
To: xen-devel; +Cc: linux-kernel, Boris Ostrovsky, Juergen Gross, David Vrabel
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
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
2016-11-23 12:38 [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Vitaly Kuznetsov
@ 2016-11-23 16:17 ` Boris Ostrovsky
2016-11-30 6:46 ` Juergen Gross
1 sibling, 0 replies; 3+ messages in thread
From: Boris Ostrovsky @ 2016-11-23 16:17 UTC (permalink / raw
To: Vitaly Kuznetsov, xen-devel; +Cc: linux-kernel, Juergen Gross, David Vrabel
On 11/23/2016 07:38 AM, Vitaly Kuznetsov wrote:
> 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>
> ---
> 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;
> }
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
2016-11-23 12:38 [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Vitaly Kuznetsov
2016-11-23 16:17 ` Boris Ostrovsky
@ 2016-11-30 6:46 ` Juergen Gross
1 sibling, 0 replies; 3+ messages in thread
From: Juergen Gross @ 2016-11-30 6:46 UTC (permalink / raw
To: Vitaly Kuznetsov, xen-devel; +Cc: linux-kernel, Boris Ostrovsky, David Vrabel
On 23/11/16 13:38, Vitaly Kuznetsov wrote:
> 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>
Applied to xen/tip.git for-linus-4.10
Juergen
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-11-30 6:46 UTC | newest]
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2016-11-23 12:38 [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Vitaly Kuznetsov
2016-11-23 16:17 ` Boris Ostrovsky
2016-11-30 6:46 ` Juergen Gross
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