Re: [Qemu-devel] [PATCH v2 2/3] xen-disk: add support for multi-page shared rings

2017-06-21 Thread Stefano Stabellini
On Wed, 21 Jun 2017, Paul Durrant wrote: > The blkif protocol has had provision for negotiation of multi-page shared > rings for some time now and many guest OS have support in their frontend > drivers. > > This patch makes the necessary modifications to xen-disk support a shared > ring up to orde

[Qemu-devel] [PATCH v2 2/3] xen-disk: add support for multi-page shared rings

2017-06-21 Thread Paul Durrant
The blkif protocol has had provision for negotiation of multi-page shared rings for some time now and many guest OS have support in their frontend drivers. This patch makes the necessary modifications to xen-disk support a shared ring up to order 4 (i.e. 16 pages). Signed-off-by: Paul Durrant --