Re: [Qemu-devel] [PATCH 0/3] vfio/pci: ioeventfd support

2018-03-02 Thread Tian, Kevin
> From: Alex Williamson [mailto:alex.william...@redhat.com] > Sent: Saturday, March 3, 2018 2:03 AM > > On Fri, 2 Mar 2018 07:08:51 + > "Tian, Kevin" wrote: > > > > From: Alex Williamson > > > Sent: Thursday, March 1, 2018 4:15 AM > > > > > > A vfio ioeventfd will perform the pre-specified d

Re: [Qemu-devel] [PATCH 0/3] vfio/pci: ioeventfd support

2018-03-02 Thread Alex Williamson
On Fri, 2 Mar 2018 07:08:51 + "Tian, Kevin" wrote: > > From: Alex Williamson > > Sent: Thursday, March 1, 2018 4:15 AM > > > > A vfio ioeventfd will perform the pre-specified device write on > > triggering of an eventfd. When coupled with KVM ioeventfds, this > > feature allows a VM to trap

Re: [Qemu-devel] [PATCH 0/3] vfio/pci: ioeventfd support

2018-03-01 Thread Tian, Kevin
> From: Alex Williamson > Sent: Thursday, March 1, 2018 4:15 AM > > A vfio ioeventfd will perform the pre-specified device write on > triggering of an eventfd. When coupled with KVM ioeventfds, this > feature allows a VM to trap a device page for virtualization, while > also registering targeted

[Qemu-devel] [PATCH 0/3] vfio/pci: ioeventfd support

2018-02-28 Thread Alex Williamson
A vfio ioeventfd will perform the pre-specified device write on triggering of an eventfd. When coupled with KVM ioeventfds, this feature allows a VM to trap a device page for virtualization, while also registering targeted ioeventfds to maintain performance of high frequency register writes within