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Re: [Qemu-devel] [PATCH 0/8] virtio: allow migration with dataplane
From: |
Christian Borntraeger |
Subject: |
Re: [Qemu-devel] [PATCH 0/8] virtio: allow migration with dataplane |
Date: |
Tue, 16 Feb 2016 09:57:03 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 |
On 02/14/2016 06:17 PM, Paolo Bonzini wrote:
> Currently, dataplane threads are shut down during migration because
> vring.c is not able to track dirty memory. However, all the relevant
> parts of QEMU have been made thread-safe now, so we can drop vring.c
> completely. With these patches, virtio-dataplane is now simply "virtio
> with ioeventfd in a different AioContext".
Can you provide a branch somewhere? Then I can at least test even if I
have no time review.
>
> Paolo Bonzini (8):
> block-migration: acquire AioContext as necessary
> vring: make vring_enable_notification return void
> virtio: add AioContext-specific function for host notifiers
> virtio: export vring_notify as virtio_should_notify
> virtio-blk: fix "disabled data plane" mode
> virtio-blk: do not use vring in dataplane
> virtio-scsi: do not use vring in dataplane
> vring: remove
>
> hw/block/dataplane/virtio-blk.c | 130 +-----
> hw/block/dataplane/virtio-blk.h | 1 +
> hw/block/virtio-blk.c | 51 +--
> hw/scsi/virtio-scsi-dataplane.c | 196 ++-------
> hw/scsi/virtio-scsi.c | 52 +--
> hw/virtio/Makefile.objs | 1 -
> hw/virtio/dataplane/Makefile.objs | 1 -
> hw/virtio/dataplane/vring.c | 549
> --------------------------
> hw/virtio/virtio.c | 20 +-
> include/hw/virtio/dataplane/vring-accessors.h | 75 ----
> include/hw/virtio/dataplane/vring.h | 51 ---
> include/hw/virtio/virtio-blk.h | 4 +-
> include/hw/virtio/virtio-scsi.h | 21 +-
> include/hw/virtio/virtio.h | 3 +
> migration/block.c | 61 ++-
> trace-events | 3 -
> 16 files changed, 134 insertions(+), 1085 deletions(-)
> delete mode 100644 hw/virtio/dataplane/Makefile.objs
> delete mode 100644 hw/virtio/dataplane/vring.c
> delete mode 100644 include/hw/virtio/dataplane/vring-accessors.h
> delete mode 100644 include/hw/virtio/dataplane/vring.h
>
- Re: [Qemu-devel] [PATCH 3/8] virtio: add AioContext-specific function for host notifiers, (continued)
- [Qemu-devel] [PATCH 4/8] virtio: export vring_notify as virtio_should_notify, Paolo Bonzini, 2016/02/14
- [Qemu-devel] [PATCH 6/8] virtio-blk: do not use vring in dataplane, Paolo Bonzini, 2016/02/14
- [Qemu-devel] [PATCH 7/8] virtio-scsi: do not use vring in dataplane, Paolo Bonzini, 2016/02/14
- [Qemu-devel] [PATCH 8/8] vring: remove, Paolo Bonzini, 2016/02/14
- Re: [Qemu-devel] [PATCH 0/8] virtio: allow migration with dataplane,
Christian Borntraeger <=
- Re: [Qemu-devel] [PATCH 0/8] virtio: allow migration with dataplane, Michael S. Tsirkin, 2016/02/19
- Re: [Qemu-devel] [PATCH 0/8] virtio: allow migration with dataplane, Stefan Hajnoczi, 2016/02/22