* [PATCH] vfio: Fix vfio ioctl call to mask INTx
@ 2017-03-28 23:15 Nikhil Rao
2017-03-28 23:54 ` [PATCH v2] vfio: Fix vfio disable INTx Nikhil Rao
0 siblings, 1 reply; 4+ messages in thread
From: Nikhil Rao @ 2017-03-28 23:15 UTC (permalink / raw)
To: anatoly.burakov; +Cc: dev
The flags member of irq_set should be ORed with VFIO_IRQ_SET_ACTION_MASK
and not VFIO_IRQ_SET_ACTION_UNMASK. The bug was found by code inspection.
Fixes: 5c782b3928b8 (\"vfio: interrupts\")
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
lib/librte_eal/linuxapp/eal/eal_interrupts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 5bb833e..0d7c7c1 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -194,7 +194,7 @@ vfio_disable_intx(const struct rte_intr_handle *intr_handle) {
irq_set = (struct vfio_irq_set *) irq_set_buf;
irq_set->argsz = len;
irq_set->count = 1;
- irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_UNMASK;
+ irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_MASK;
irq_set->index = VFIO_PCI_INTX_IRQ_INDEX;
irq_set->start = 0;
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH v2] vfio: Fix vfio disable INTx
2017-03-28 23:15 [PATCH] vfio: Fix vfio ioctl call to mask INTx Nikhil Rao
@ 2017-03-28 23:54 ` Nikhil Rao
2017-03-28 15:28 ` Burakov, Anatoly
0 siblings, 1 reply; 4+ messages in thread
From: Nikhil Rao @ 2017-03-28 23:54 UTC (permalink / raw)
To: anatoly.burakov; +Cc: dev
The flags member of irq_set should be ORed with VFIO_IRQ_SET_ACTION_MASK
and not VFIO_IRQ_SET_ACTION_UNMASK. The bug was found by code inspection.
Fixes: 5c782b3928b8 (\"vfio: interrupts\")
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
Changes since v1:
* Better summary
* Fix error message
lib/librte_eal/linuxapp/eal/eal_interrupts.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_interrupts.c b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
index 5bb833e..029a147 100644
--- a/lib/librte_eal/linuxapp/eal/eal_interrupts.c
+++ b/lib/librte_eal/linuxapp/eal/eal_interrupts.c
@@ -194,14 +194,14 @@ vfio_disable_intx(const struct rte_intr_handle *intr_handle) {
irq_set = (struct vfio_irq_set *) irq_set_buf;
irq_set->argsz = len;
irq_set->count = 1;
- irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_UNMASK;
+ irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_MASK;
irq_set->index = VFIO_PCI_INTX_IRQ_INDEX;
irq_set->start = 0;
ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
if (ret) {
- RTE_LOG(ERR, EAL, "Error unmasking INTx interrupts for fd %d\n",
+ RTE_LOG(ERR, EAL, "Error masking INTx interrupts for fd %d\n",
intr_handle->fd);
return -1;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH v2] vfio: Fix vfio disable INTx
2017-03-28 23:54 ` [PATCH v2] vfio: Fix vfio disable INTx Nikhil Rao
@ 2017-03-28 15:28 ` Burakov, Anatoly
2017-03-30 15:00 ` Thomas Monjalon
0 siblings, 1 reply; 4+ messages in thread
From: Burakov, Anatoly @ 2017-03-28 15:28 UTC (permalink / raw)
To: Rao, Nikhil; +Cc: dev
> From: Rao, Nikhil
> Sent: Wednesday, March 29, 2017 12:54 AM
> To: Burakov, Anatoly <anatoly.burakov@intel.com>
> Cc: dev@dpdk.org
> Subject: [PATCH v2] vfio: Fix vfio disable INTx
>
> The flags member of irq_set should be ORed with
> VFIO_IRQ_SET_ACTION_MASK and not VFIO_IRQ_SET_ACTION_UNMASK.
> The bug was found by code inspection.
>
> Fixes: 5c782b3928b8 (\"vfio: interrupts\")
>
> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Great find!
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2] vfio: Fix vfio disable INTx
2017-03-28 15:28 ` Burakov, Anatoly
@ 2017-03-30 15:00 ` Thomas Monjalon
0 siblings, 0 replies; 4+ messages in thread
From: Thomas Monjalon @ 2017-03-30 15:00 UTC (permalink / raw)
To: Burakov, Anatoly; +Cc: dev, Rao, Nikhil
2017-03-28 15:28, Burakov, Anatoly:
> > From: Rao, Nikhil
> > Sent: Wednesday, March 29, 2017 12:54 AM
> > To: Burakov, Anatoly <anatoly.burakov@intel.com>
> > Cc: dev@dpdk.org
> > Subject: [PATCH v2] vfio: Fix vfio disable INTx
> >
> > The flags member of irq_set should be ORed with
> > VFIO_IRQ_SET_ACTION_MASK and not VFIO_IRQ_SET_ACTION_UNMASK.
> > The bug was found by code inspection.
> >
> > Fixes: 5c782b3928b8 (\"vfio: interrupts\")
> >
> > Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
>
> Great find!
>
> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Applied, thanks
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2017-03-30 15:00 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2017-03-28 23:15 [PATCH] vfio: Fix vfio ioctl call to mask INTx Nikhil Rao
2017-03-28 23:54 ` [PATCH v2] vfio: Fix vfio disable INTx Nikhil Rao
2017-03-28 15:28 ` Burakov, Anatoly
2017-03-30 15:00 ` Thomas Monjalon
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