Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Fri, Feb 09, 2018 at 02:45:41PM -0700, Alex Williamson wrote: > On Fri, 9 Feb 2018 15:05:11 +0800 > Peter Xu wrote: > > > On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: > > > > [...] > > > > > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Fri, Feb 09, 2018 at 02:45:41PM -0700, Alex Williamson wrote: > On Fri, 9 Feb 2018 15:05:11 +0800 > Peter Xu wrote: > > > On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: > > > > [...] > > > > > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, > > > +

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Fri, 9 Feb 2018 15:05:11 +0800 Peter Xu wrote: > On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: > > [...] > > > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, > > + uint64_t data, int count, int fd) > > +{ > > +

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Fri, 9 Feb 2018 15:05:11 +0800 Peter Xu wrote: > On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: > > [...] > > > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, > > + uint64_t data, int count, int fd) > > +{ > > + struct pci_dev

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: [...] > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, > + uint64_t data, int count, int fd) > +{ > + struct pci_dev *pdev = vdev->pdev; > + loff_t pos = offset &

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Tue, Feb 06, 2018 at 05:08:14PM -0700, Alex Williamson wrote: [...] > +long vfio_pci_ioeventfd(struct vfio_pci_device *vdev, loff_t offset, > + uint64_t data, int count, int fd) > +{ > + struct pci_dev *pdev = vdev->pdev; > + loff_t pos = offset &

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

Hi Alex, On 07/02/18 17:57, Alex Williamson wrote: > On Wed, 7 Feb 2018 16:46:19 +0100 > Auger Eric wrote: > >> Hi Alex, >> >> On 07/02/18 01:08, Alex Williamson wrote: >>> The ioeventfd here is actually irqfd handling of an ioeventfd such as >>> supported in KVM. A user

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

Hi Alex, On 07/02/18 17:57, Alex Williamson wrote: > On Wed, 7 Feb 2018 16:46:19 +0100 > Auger Eric wrote: > >> Hi Alex, >> >> On 07/02/18 01:08, Alex Williamson wrote: >>> The ioeventfd here is actually irqfd handling of an ioeventfd such as >>> supported in KVM. A user is able to pre-program

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Wed, 7 Feb 2018 16:46:19 +0100 Auger Eric wrote: > Hi Alex, > > On 07/02/18 01:08, Alex Williamson wrote: > > The ioeventfd here is actually irqfd handling of an ioeventfd such as > > supported in KVM. A user is able to pre-program a device write to > > occur when the

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

On Wed, 7 Feb 2018 16:46:19 +0100 Auger Eric wrote: > Hi Alex, > > On 07/02/18 01:08, Alex Williamson wrote: > > The ioeventfd here is actually irqfd handling of an ioeventfd such as > > supported in KVM. A user is able to pre-program a device write to > > occur when the eventfd triggers.

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

Hi Alex, On 07/02/18 01:08, Alex Williamson wrote: > The ioeventfd here is actually irqfd handling of an ioeventfd such as > supported in KVM. A user is able to pre-program a device write to > occur when the eventfd triggers. This is yet another instance of > eventfd-irqfd triggering between

Re: [Qemu-devel] [RFC PATCH] vfio/pci: Add ioeventfd support

Hi Alex, On 07/02/18 01:08, Alex Williamson wrote: > The ioeventfd here is actually irqfd handling of an ioeventfd such as > supported in KVM. A user is able to pre-program a device write to > occur when the eventfd triggers. This is yet another instance of > eventfd-irqfd triggering between