On 16/02/2021 15.32, Peter Maydell wrote:
On Tue, 16 Feb 2021 at 14:30, Cornelia Huck <coh...@redhat.com> wrote:
Step 4 in "2.7.13 Supplying Buffers to The Device":
"The driver performs a suitable memory barrier to ensure the device
sees the updated descriptor table and available ring before the next
step."
I thought that my first time through the spec as well, but
I think the whole of section 2.7 is dealing with "packed virtqueues",
which have to be explicitly negotiated and which I don't think
the s390-ccw code is doing.
Right. I think the s390-ccw code is still based on virtio v1.0, that's why I
also only looked at that version of the spec.
Thomas
