Re: [PATCH 0/16 v6] PCI: Linux kernel SR-IOV support

From: Avi Kivity
Date: Sun Nov 09 2008 - 08:13:12 EST


Greg KH wrote:
It's that "second" part that I'm worried about. How is that going to
happen? Do you have any patches that show this kind of "assignment"?


For kvm, this is in 2.6.28-rc.

Note there are two ways to assign a device to a guest:

- run the VF driver in the guest: this has the advantage of best performance, but requires pinning all guest memory, makes live migration a tricky proposition, and ties the guest to the underlying hardware.
- run the VF driver in the host, and use virtio to connect the guest to the host: allows paging the guest and allows straightforward live migration, but reduces performance, and hides any features not exposed by virtio from the guest.


--
error compiling committee.c: too many arguments to function

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