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Re: [Qemu-devel] [PATCH 3/5] s390: Add new channel I/O based virtio tran
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH 3/5] s390: Add new channel I/O based virtio transport. |
Date: |
Thu, 9 Aug 2012 12:34:04 +0100 |
On Tue, Aug 7, 2012 at 3:52 PM, Cornelia Huck <address@hidden> wrote:
> Add a new virtio transport that uses channel commands to perform
> virtio operations.
>
> Add a new machine type s390-ccw that uses this virtio-ccw transport
> and make it the default machine for s390.
>
> Signed-off-by: Cornelia Huck <address@hidden>
> ---
> hw/qdev-monitor.c | 5 +
> hw/s390-virtio.c | 268 ++++++++++----
> hw/s390x/Makefile.objs | 1 +
> hw/s390x/virtio-ccw.c | 962
> +++++++++++++++++++++++++++++++++++++++++++++++++
> hw/s390x/virtio-ccw.h | 77 ++++
> vl.c | 1 +
> 6 files changed, 1243 insertions(+), 71 deletions(-)
> create mode 100644 hw/s390x/virtio-ccw.c
> create mode 100644 hw/s390x/virtio-ccw.h
Is the virtqueue still using vring and assuming the hypervisor reaches
into guest memory?
Can existing ccw device types access memory directly (for some reason
I assumed ccw always copies or send messages)?
Stefan
[Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Cornelia Huck, 2012/08/07
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Blue Swirl, 2012/08/07
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Cornelia Huck, 2012/08/08
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Blue Swirl, 2012/08/08
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Peter Maydell, 2012/08/08
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Blue Swirl, 2012/08/08
- Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Cornelia Huck, 2012/08/09
Re: [Qemu-devel] [PATCH 2/5] s390: Virtual channel subsystem support., Peter Maydell, 2012/08/08