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| Started by | Vitaly Kuznetsov <vkuznets@redhat.com> |
|---|---|
| First post | 2016-11-23 13:40 +0100 |
| Last post | 2016-11-23 17:20 +0100 |
| Articles | 2 — 2 participants |
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[PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Vitaly Kuznetsov <vkuznets@redhat.com> - 2016-11-23 13:40 +0100
Re: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2016-11-23 17:20 +0100
| From | Vitaly Kuznetsov <vkuznets@redhat.com> |
|---|---|
| Date | 2016-11-23 13:40 +0100 |
| Subject | [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status |
| Message-ID | <sGF0d-4Vd-11@gated-at.bofh.it> |
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
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| From | Boris Ostrovsky <boris.ostrovsky@oracle.com> |
|---|---|
| Date | 2016-11-23 17:20 +0100 |
| Subject | Re: [PATCH KERNEL] xen/events: use xen_vcpu_id mapping for EVTCHNOP_status |
| Message-ID | <sGIr7-78l-1@gated-at.bofh.it> |
| In reply to | #1528371 |
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;
> }
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