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qemu/hw/virtio
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Xie Yongji 5ad204bf2a vhost-user: Support transferring inflight buffer between qemu and backend 
This patch introduces two new messages VHOST_USER_GET_INFLIGHT_FD
and VHOST_USER_SET_INFLIGHT_FD to support transferring a shared
buffer between qemu and backend.

Firstly, qemu uses VHOST_USER_GET_INFLIGHT_FD to get the
shared buffer from backend. Then qemu should send it back
through VHOST_USER_SET_INFLIGHT_FD each time we start vhost-user.

This shared buffer is used to track inflight I/O by backend.
Qemu should retrieve a new one when vm reset.

Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Chai Wen <chaiwen@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-2-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-03-12 22:31:21 -04:00
..
Kconfig s390x: express dependencies with Kconfig 2019-03-07 21:46:19 +01:00
Makefile.objs virtio: express virtio dependencies with Kconfig 2019-03-07 21:45:53 +01:00
trace-events vhost: add trace for IOTLB miss 2018-05-23 03:14:41 +03:00
vhost-backend.c vhost-net: revamp configure logic 2019-02-21 12:28:01 -05:00
vhost-scsi-pci.c virtio: split vhost scsi bits from virtio-pci 2019-01-17 21:10:57 -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 virtio: split vhost user blk bits from virtio-pci 2019-01-17 21:10:57 -05:00
vhost-user-scsi-pci.c virtio: split vhost user scsi bits from virtio-pci 2019-01-17 21:10:57 -05:00
vhost-user.c vhost-user: Support transferring inflight buffer between qemu and backend 2019-03-12 22:31:21 -04:00
vhost-vsock-pci.c virtio: split vhost vsock bits from virtio-pci 2019-01-17 21:10:57 -05:00
vhost-vsock.c hw: use "qemu/osdep.h" as first #include in source files 2017-12-18 17:07:02 +03:00
vhost.c vhost-user: Support transferring inflight buffer between qemu and backend 2019-03-12 22:31:21 -04:00
virtio-9p-pci.c virtio: split virtio 9p bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-balloon-pci.c virtio: split virtio balloon bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-balloon.c virtio-balloon: Restore MADV_WILLNEED hint on balloon deflate 2019-03-12 21:22:31 -04:00
virtio-blk-pci.c virtio: split virtio blk bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-bus.c virtio: remove event notifier cleanup call on de-assign 2018-02-08 21:06:26 +02:00
virtio-crypto-pci.c virtio: split virtio crypto bits from virtio-pci.h 2019-01-17 21:10:57 -05:00
virtio-crypto.c cryptodev: add vhost support 2018-03-01 18:26:17 +02:00
virtio-input-host-pci.c virtio: split virtio input host bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-input-pci.c virtio: split virtio input bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-mmio.c virtio-mmio: switch to linux headers 2017-01-18 22:59:53 +02:00
virtio-net-pci.c virtio: split virtio net bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-pci.c virtio: add class_size to VirtioPCIDeviceTypeInfo 2019-03-11 08:04:12 +01:00
virtio-pci.h virtio: add class_size to VirtioPCIDeviceTypeInfo 2019-03-11 08:04:12 +01:00
virtio-rng-pci.c virtio: split virtio rng bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-rng.c qom: make user_creatable_complete() specific to UserCreatable 2018-12-11 15:45:22 -02:00
virtio-scsi-pci.c virtio: split virtio scsi bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio-serial-pci.c virtio: split virtio serial bits from virtio-pci 2019-01-17 21:10:57 -05:00
virtio.c virtio-net: make VirtIOFeature usable for other virtio devices 2019-02-22 09:42:16 +00:00