Re: presentation at kvm forum and pagefaults

2019-10-31 Thread Michael S. Tsirkin
Regarding the presentation I gave at the kvm forum on pagefaults. Two points: 1. pagefaults are important not just for migration. They are important for performance features such as autonuma and huge pages, since this relies on moving pages around. Migration can maybe be solved by switch to soft

[PATCH v4] vhost: introduce mdev based hardware backend

2019-10-31 Thread Tiwei Bie
This patch introduces a mdev based hardware vhost backend. This backend is built on top of the same abstraction used in virtio-mdev and provides a generic vhost interface for userspace to accelerate the virtio devices in guest. This backend is implemented as a mdev device driver on top of the same

Re: [PATCH net-next 11/14] vsock: add multi-transports support

2019-10-31 Thread Stefano Garzarella
On Wed, Oct 30, 2019 at 03:40:05PM +, Jorgen Hansen wrote: > > From: Stefano Garzarella [mailto:sgarz...@redhat.com] > > > +/* Assign a transport to a socket and call the .init transport callback. > > > + * > > > + * Note: for stream socket this must be called when vsk->remote_addr > > > +is se

Re: [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the core

2019-10-31 Thread Stefano Garzarella
On Wed, Oct 30, 2019 at 03:08:15PM +, Jorgen Hansen wrote: > > From: Stefano Garzarella [mailto:sgarz...@redhat.com] > > Sent: Wednesday, October 23, 2019 11:56 AM > > Subject: [PATCH net-next 07/14] vsock: handle buffer_size sockopts in the > > core > > > > virtio_transport and vmci_transport