On Wed, Sep 19, 2012 at 01:23:35PM -0600, Alex Williamson wrote:
> On Wed, 2012-09-19 at 21:48 +0300, Michael S. Tsirkin wrote:
> > On Wed, Sep 19, 2012 at 12:23:13PM -0600, Alex Williamson wrote:
> > > On Wed, 2012-09-19 at 11:59 +0300, Avi Kivity wrote:
> > > > On 09/18/2012 06:16 AM, Alex Willia
On Wed, 2012-09-19 at 21:48 +0300, Michael S. Tsirkin wrote:
> On Wed, Sep 19, 2012 at 12:23:13PM -0600, Alex Williamson wrote:
> > On Wed, 2012-09-19 at 11:59 +0300, Avi Kivity wrote:
> > > On 09/18/2012 06:16 AM, Alex Williamson wrote:
> > > > @@ -92,6 +156,43 @@ irqfd_shutdown(struct work_struct
On Wed, Sep 19, 2012 at 12:23:13PM -0600, Alex Williamson wrote:
> On Wed, 2012-09-19 at 11:59 +0300, Avi Kivity wrote:
> > On 09/18/2012 06:16 AM, Alex Williamson wrote:
> > > @@ -92,6 +156,43 @@ irqfd_shutdown(struct work_struct *work)
> > >*/
> > > flush_work_sync(&irqfd->inject);
> > >
On Wed, 2012-09-19 at 11:59 +0300, Avi Kivity wrote:
> On 09/18/2012 06:16 AM, Alex Williamson wrote:
> > @@ -92,6 +156,43 @@ irqfd_shutdown(struct work_struct *work)
> > */
> > flush_work_sync(&irqfd->inject);
> >
> > + if (irqfd->resampler) {
> > + struct _irqfd_resampler *
On 09/19/2012 04:54 PM, Alex Williamson wrote:
> On Wed, 2012-09-19 at 12:10 +0300, Avi Kivity wrote:
>> On 09/19/2012 12:08 PM, Michael S. Tsirkin wrote:
>>
>> >> Whoa. Can't we put the resampler entry somewhere we don't need to
>> >> search for it? Like a kvm_kernel_irq_routing_entry, that's i
On Wed, 2012-09-19 at 12:10 +0300, Avi Kivity wrote:
> On 09/19/2012 12:08 PM, Michael S. Tsirkin wrote:
>
> >> Whoa. Can't we put the resampler entry somewhere we don't need to
> >> search for it? Like a kvm_kernel_irq_routing_entry, that's indexed by
> >> gsi already (kvm_irq_routing_table::rt
On 09/19/2012 12:08 PM, Michael S. Tsirkin wrote:
>> Whoa. Can't we put the resampler entry somewhere we don't need to
>> search for it? Like a kvm_kernel_irq_routing_entry, that's indexed by
>> gsi already (kvm_irq_routing_table::rt_entries[gsi]).
>
> I'm not sure why would we bother optimizin
On Wed, Sep 19, 2012 at 11:59:33AM +0300, Avi Kivity wrote:
> > @@ -247,9 +383,36 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd
> > *args)
> > /* This fd is used for another irq already. */
> > ret = -EBUSY;
> > spin_unlock_irq(&kvm->irqfds.lock);
> > +
On 09/18/2012 06:16 AM, Alex Williamson wrote:
> To emulate level triggered interrupts, add a resample option to
> KVM_IRQFD. When specified, a new resamplefd is provided that notifies
> the user when the irqchip has been resampled by the VM. This may, for
> instance, indicate an EOI. Also in th
On Mon, Sep 17, 2012 at 09:16:28PM -0600, Alex Williamson wrote:
> To emulate level triggered interrupts, add a resample option to
> KVM_IRQFD. When specified, a new resamplefd is provided that notifies
> the user when the irqchip has been resampled by the VM. This may, for
> instance, indicate a
To emulate level triggered interrupts, add a resample option to
KVM_IRQFD. When specified, a new resamplefd is provided that notifies
the user when the irqchip has been resampled by the VM. This may, for
instance, indicate an EOI. Also in this mode, injection of an
interrupt through an irqfd onl
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