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[Qemu-devel] [PATCH v1 12/16] virtio: add userspace migration of packed
From: |
wexu |
Subject: |
[Qemu-devel] [PATCH v1 12/16] virtio: add userspace migration of packed ring |
Date: |
Thu, 22 Nov 2018 09:06:17 -0500 |
From: Wei Xu <address@hidden>
Signed-off-by: Wei Xu <address@hidden>
---
hw/virtio/virtio.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 240c4e3..64d5c04 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2558,6 +2558,12 @@ int virtio_save(VirtIODevice *vdev, QEMUFile *f)
*/
qemu_put_be64(f, vdev->vq[i].vring.desc);
qemu_put_be16s(f, &vdev->vq[i].last_avail_idx);
+ qemu_put_8s(f, (const uint8_t *)&vdev->vq[i].avail_wrap_counter);
+ qemu_put_8s(f, (const uint8_t *)&vdev->vq[i].event_wrap_counter);
+ qemu_put_8s(f, (const uint8_t *)&vdev->vq[i].used_wrap_counter);
+ qemu_put_be16s(f, &vdev->vq[i].used_idx);
+ qemu_put_be16s(f, &vdev->vq[i].shadow_avail_idx);
+ qemu_put_be32s(f, &vdev->vq[i].inuse);
if (k->save_queue) {
k->save_queue(qbus->parent, i, f);
}
@@ -2705,6 +2711,14 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int
version_id)
}
vdev->vq[i].vring.desc = qemu_get_be64(f);
qemu_get_be16s(f, &vdev->vq[i].last_avail_idx);
+
+ qemu_get_8s(f, (uint8_t *)&vdev->vq[i].avail_wrap_counter);
+ qemu_get_8s(f, (uint8_t *)&vdev->vq[i].event_wrap_counter);
+ qemu_get_8s(f, (uint8_t *)&vdev->vq[i].used_wrap_counter);
+ qemu_get_be16s(f, &vdev->vq[i].used_idx);
+ qemu_get_be16s(f, &vdev->vq[i].shadow_avail_idx);
+ qemu_get_be32s(f, &vdev->vq[i].inuse);
+
vdev->vq[i].signalled_used_valid = false;
vdev->vq[i].notification = true;
@@ -2786,6 +2800,10 @@ int virtio_load(VirtIODevice *vdev, QEMUFile *f, int
version_id)
virtio_queue_update_rings(vdev, i);
}
+ if (virtio_vdev_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+ continue;
+ }
+
nheads = vring_avail_idx(&vdev->vq[i]) -
vdev->vq[i].last_avail_idx;
/* Check it isn't doing strange things with descriptor numbers. */
if (nheads > vdev->vq[i].vring.num) {
--
1.8.3.1
- Re: [Qemu-devel] [PATCH v1 01/16] Update version for v3.1.0-rc2 release, (continued)
- [Qemu-devel] [PATCH v1 02/16] virtio: introduce packed ring definitions, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 03/16] virtio: redefine structure & memory cache for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 04/16] virtio: expand offset calculation for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 05/16] virtio: add memory region init for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 06/16] virtio: init wrap counter for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 07/16] virtio: init and desc empty check for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 08/16] virtio: get avail bytes check for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 09/16] virtio: fill/flush/pop for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 10/16] virtio: event suppression support for packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 12/16] virtio: add userspace migration of packed ring,
wexu <=
- [Qemu-devel] [PATCH v1 11/16] virtio-net: fill head desc after done all in a chain, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 13/16] virtio: add vhost-net migration of packed ring, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 14/16] virtio: packed ring feature bit for userspace backend, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 16/16] virtio: enable packed ring via a new command line, wexu, 2018/11/22
- [Qemu-devel] [PATCH v1 15/16] vhost: enable packed ring, wexu, 2018/11/22
- Re: [Qemu-devel] [PATCH v1 00/16] packed ring virtio-net backend support, Maxime Coquelin, 2018/11/22