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805d782d28
qemu/hw/virtio
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Xuan Zhuo 805d782d28 virtio-pci: support queue reset 
PCI devices support vq reset.

Based on this function, the driver can adjust the size of the ring, and
quickly recycle the buffer in the ring.

The migration of the virtio devices will not happen during a reset
operation. This is becuase the global iothread lock is held. Migration
thread also needs the lock. As a result, when migration of virtio
devices starts, the 'reset' status of VirtIOPCIQueue will always be 0.
Thus, we do not need to add it in vmstate_virtio_pci_modern_queue_state.

Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: Kangjie Xu <kangjie.xu@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221017092558.111082-6-xuanzhuo@linux.alibaba.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-11-07 13:12:20 -05:00
..
Kconfig hw/virtio: add boilerplate for vhost-user-gpio device 2022-10-07 09:41:51 -04:00
meson.build qmp: add QMP command x-query-virtio 2022-10-09 16:38:45 -04:00
trace-events hw/virtio: add boilerplate for vhost-user-gpio device 2022-10-07 09:41:51 -04:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
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 vhost: Accept event idx flag 2022-10-28 13:28:52 +08:00
vhost-shadow-virtqueue.h vhost: Add svq avail_handler callback 2022-07-20 16:58:08 +08:00
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 hw/virtio: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
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 hw/virtio: add boilerplate for vhost-user-gpio device 2022-10-07 09:41:51 -04:00
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 hw/virtio: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
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 hw/virtio: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
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: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
vhost-user.c hw/virtio: fix some coding style issues 2022-10-07 09:41:51 -04:00
vhost-vdpa.c vdpa: Delete CVQ migration blocker 2022-09-02 10:22:39 +08:00
vhost-vsock-common.c hw/virtio: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
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: move vhd->started check into helper and add FIXME 2022-10-07 09:41:51 -04:00
vhost.c hw/virtio: add some vhost-user trace events 2022-10-07 09:41:51 -04:00
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 virtio: drop name parameter for virtio_init() 2022-05-16 04:38:40 -04:00
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-crypto-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-crypto.c virtio-crypto: Support asynchronous mode 2022-11-02 06:56:32 -04:00
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/virtio/virtio-iommu: Enforce power-of-two notify for both MAP and UNMAP 2022-07-26 15:33:29 -04:00
virtio-mem-pci.c pci-ids: drop PCI_DEVICE_ID_VIRTIO_MEM 2022-10-12 12:01:11 +02:00
virtio-mem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-mem.c util: Make qemu_prealloc_mem() optionally consume a ThreadContext 2022-10-27 11:00:56 +02:00
virtio-mmio.c virtio-mmio: cleanup reset 2022-06-14 16:50:30 +02:00
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: support queue reset 2022-11-07 13:12:20 -05:00
virtio-pmem-pci.c pci-ids: drop PCI_DEVICE_ID_VIRTIO_PMEM 2022-10-12 12:01:11 +02:00
virtio-pmem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-pmem.c virtio: drop name parameter for virtio_init() 2022-05-16 04:38:40 -04:00
virtio-rng-pci.c hw/virtio: move virtio-pci.h into shared include space 2022-05-16 04:38:40 -04:00
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 virtio: introduce virtio_queue_enable() 2022-11-07 13:12:20 -05:00