Re: [Qemu-devel] [PATCH] memory: emulate ioeventfd

2015-11-20 Thread Paolo Bonzini
On 20/11/2015 10:37, Pavel Fedin wrote: > The ioeventfd mechanism is used by vhost, dataplane, and virtio-pci to > turn guest MMIO/PIO writes into eventfd file descriptor events. This > allows arbitrary threads to be notified when the guest writes to a > specific MMIO/PIO address. > > qtest and

Re: [Qemu-devel] [PATCH] memory: emulate ioeventfd

2015-11-20 Thread Michael S. Tsirkin
On Fri, Nov 20, 2015 at 12:37:16PM +0300, Pavel Fedin wrote: > The ioeventfd mechanism is used by vhost, dataplane, and virtio-pci to > turn guest MMIO/PIO writes into eventfd file descriptor events. This > allows arbitrary threads to be notified when the guest writes to a > specific MMIO/PIO addr

[Qemu-devel] [PATCH] memory: emulate ioeventfd

2015-11-20 Thread Pavel Fedin
The ioeventfd mechanism is used by vhost, dataplane, and virtio-pci to turn guest MMIO/PIO writes into eventfd file descriptor events. This allows arbitrary threads to be notified when the guest writes to a specific MMIO/PIO address. qtest and TCG do not support ioeventfd because memory writes ar