Hi Alex,
On 05/03/2018 06:29 PM, Alex Williamson wrote:
> On Thu, 3 May 2018 12:56:03 +0800
> Peter Xu wrote:
>
>> On Tue, May 01, 2018 at 10:43:46AM -0600, Alex Williamson wrote:
>>
>> [...]
>>
>>> -static void vfio_ioeventfd_exit(VFIOIOEventFD *ioeventfd)
>>> +static void vfio_ioeventfd_exit(V
On Thu, May 03, 2018 at 10:29:42AM -0600, Alex Williamson wrote:
> On Thu, 3 May 2018 12:56:03 +0800
> Peter Xu wrote:
>
> > On Tue, May 01, 2018 at 10:43:46AM -0600, Alex Williamson wrote:
> >
> > [...]
> >
> > > -static void vfio_ioeventfd_exit(VFIOIOEventFD *ioeventfd)
> > > +static void vfi
On Thu, 3 May 2018 17:20:18 +0200
Auger Eric wrote:
> Hi Alex,
>
> On 05/01/2018 06:43 PM, Alex Williamson wrote:
> > With vfio ioeventfd support, we can program vfio-pci to perform a
> > specified BAR write when an eventfd is triggered. This allows the
> > KVM ioeventfd to be wired directly to
On Thu, 3 May 2018 12:56:03 +0800
Peter Xu wrote:
> On Tue, May 01, 2018 at 10:43:46AM -0600, Alex Williamson wrote:
>
> [...]
>
> > -static void vfio_ioeventfd_exit(VFIOIOEventFD *ioeventfd)
> > +static void vfio_ioeventfd_exit(VFIOPCIDevice *vdev, VFIOIOEventFD
> > *ioeventfd)
> > {
> >
Hi Alex,
On 05/01/2018 06:43 PM, Alex Williamson wrote:
> With vfio ioeventfd support, we can program vfio-pci to perform a
> specified BAR write when an eventfd is triggered. This allows the
> KVM ioeventfd to be wired directly to vfio-pci, entirely avoiding
> userspace handling for these events
On Tue, May 01, 2018 at 10:43:46AM -0600, Alex Williamson wrote:
[...]
> -static void vfio_ioeventfd_exit(VFIOIOEventFD *ioeventfd)
> +static void vfio_ioeventfd_exit(VFIOPCIDevice *vdev, VFIOIOEventFD
> *ioeventfd)
> {
> QLIST_REMOVE(ioeventfd, next);
> +
> memory_region_del_eventfd(
With vfio ioeventfd support, we can program vfio-pci to perform a
specified BAR write when an eventfd is triggered. This allows the
KVM ioeventfd to be wired directly to vfio-pci, entirely avoiding
userspace handling for these events. On the same micro-benchmark
where the ioeventfd got us to almo
