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qemu/hw/virtio
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Eugenio Pérez 4241e8bd72 vdpa: rewind at get_base, not set_base 
At this moment it is only possible to migrate to a vdpa device running
with x-svq=on. As a protective measure, the rewind of the inflight
descriptors was done at the destination. That way if the source sent a
virtqueue with inuse descriptors they are always discarded.

Since this series allows to migrate also to passthrough devices with no
SVQ, the right thing to do is to rewind at the source so the base of
vrings are correct.

Support for inflight descriptors may be added in the future.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230303172445.1089785-5-eperezma@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-03-07 12:38:59 -05:00
..
Kconfig vdpa: add vdpa-dev support 2022-12-21 06:35:28 -05:00
meson.build virtio: Move HMP commands from monitor/ to hw/virtio/ 2023-02-04 07:56:54 +01:00
trace-events vhost-vdpa: add support for config interrupt 2023-01-08 01:54:22 -05:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vdpa-dev-pci.c vdpa: add vdpa-dev-pci support 2022-12-21 06:35:28 -05:00
vdpa-dev.c vdpa-dev: get iova range explicitly 2023-01-08 01:54:22 -05:00
vhost-backend.c vhost: add method vhost_set_vring_err 2022-06-27 18:53:18 -04:00
vhost-iova-tree.c util: accept iova_tree_remove_parameter by value 2022-09-02 10:22:39 +08:00
vhost-iova-tree.h util: accept iova_tree_remove_parameter by value 2022-09-02 10:22:39 +08:00
vhost-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-shadow-virtqueue.c vdpa: rewind at get_base, not set_base 2023-03-07 12:38:59 -05:00
vhost-shadow-virtqueue.h vhost: move iova_tree set to vhost_svq_start 2022-12-21 06:35:28 -05:00
vhost-stub.c vhost-user: simplify vhost_user_init/vhost_user_cleanup 2019-03-12 21:22:31 -04:00
vhost-user-blk-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-fs-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-fs.c vhost-user-fs: Back up vqs before cleaning up vhost_dev 2023-02-09 10:21:11 -05:00
vhost-user-gpio-pci.c hw/virtio: add vhost-user-gpio-pci boilerplate 2022-10-07 09:41:51 -04:00
vhost-user-gpio.c vhost-user-gpio: Configure vhost_dev when connecting 2023-03-02 03:10:47 -05:00
vhost-user-i2c-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-i2c.c vhost-user-i2c: Back up vqs before cleaning up vhost_dev 2023-03-02 03:10:47 -05:00
vhost-user-input-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-rng-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-rng.c vhost-user-rng: Back up vqs before cleaning up vhost_dev 2023-03-02 03:10:47 -05:00
vhost-user-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-vsock-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-user-vsock.c hw/virtio: introduce virtio_device_should_start 2022-11-07 14:08:18 -05:00
vhost-user.c vhost-user: Adopt new backend naming 2023-03-02 03:10:48 -05:00
vhost-vdpa.c vdpa: rewind at get_base, not set_base 2023-03-07 12:38:59 -05:00
vhost-vsock-common.c virtio: introduce macro VIRTIO_CONFIG_IRQ_IDX 2023-01-08 01:54:22 -05:00
vhost-vsock-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
vhost-vsock.c hw/virtio: introduce virtio_device_should_start 2022-11-07 14:08:18 -05:00
vhost.c vhost: configure all host notifiers in a single MR transaction 2023-01-08 01:54:23 -05:00
virtio-9p-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-balloon-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-balloon.c qapi: Use returned bool to check for failure (again) 2022-12-14 16:19:35 +01:00
virtio-blk-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-bus.c virtio: stop ioeventfd on reset 2022-06-14 16:50:30 +02:00
virtio-config-io.c hw/virtio: Extract config read/write accessors to virtio-config-io.c 2022-12-21 07:32:24 -05:00
virtio-crypto-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-crypto.c cryptodev: Use CryptoDevBackendOpInfo for operation 2023-03-07 12:38:59 -05:00
virtio-hmp-cmds.c virtio: Move HMP commands from monitor/ to hw/virtio/ 2023-02-04 07:56:54 +01:00
virtio-input-host-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-input-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-iommu-pci.c hw/virtio/virtio-iommu-pci: Enforce the device is plugged on the root bus 2022-11-07 13:12:19 -05:00
virtio-iommu.c hw: Use TYPE_PCI_BUS definition where appropriate 2023-01-28 06:21:30 -05:00
virtio-mem-pci.c qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
virtio-mem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-mem.c virtio-mem: Proper support for preallocation with migration 2023-02-06 19:22:56 +01:00
virtio-mmio.c bulk: Rename TARGET_FMT_plx -> HWADDR_FMT_plx 2023-01-18 11:14:34 +01:00
virtio-net-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-pci.c virtio-pci: fix proxy->vector_irqfd leak in virtio_pci_set_guest_notifiers 2023-01-08 01:54:23 -05:00
virtio-pmem-pci.c qapi machine: Elide redundant has_FOO in generated C 2022-12-14 20:04:47 +01:00
virtio-pmem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-pmem.c include/block: Untangle inclusion loops 2023-01-20 07:24:28 +01:00
virtio-qmp.c vhost-user: Adopt new backend naming 2023-03-02 03:10:48 -05:00
virtio-qmp.h include/hw/virtio: Break inclusion loop 2023-01-08 01:54:22 -05:00
virtio-rng-pci.c virtio-rng-pci: Allow setting nvectors, so we can use MSI-X 2022-11-07 13:12:20 -05:00
virtio-rng.c virtio: drop name parameter for virtio_init() 2022-05-16 04:38:40 -04:00
virtio-scsi-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-serial-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
virtio-stub.c qmp: add QMP command x-query-virtio-queue-element 2022-10-09 16:38:45 -04:00
virtio.c include/hw/virtio: Break inclusion loop 2023-01-08 01:54:22 -05:00