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ec6122d882
qemu/hw/virtio
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Eugenio Pérez ec6122d882 vhost: Add VhostIOVATree 
This tree is able to look for a translated address from an IOVA address.

At first glance it is similar to util/iova-tree. However, SVQ working on
devices with limited IOVA space need more capabilities, like allocating
IOVA chunks or performing reverse translations (qemu addresses to iova).

The allocation capability, as "assign a free IOVA address to this chunk
of memory in qemu's address space" allows shadow virtqueue to create a
new address space that is not restricted by guest's addressable one, so
we can allocate shadow vqs vrings outside of it.

It duplicates the tree so it can search efficiently in both directions,
and it will signal overlap if iova or the translated address is present
in any tree.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-03-15 13:57:44 +08:00
..
Kconfig vhost-user-rng: Add vhost-user-rng implementation 2021-10-20 04:37:55 -04:00
meson.build vhost: Add VhostIOVATree 2022-03-15 13:57:44 +08:00
trace-events virtio-iommu: Default to bypass during boot 2022-03-06 05:08:23 -05:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vhost-backend.c vhost-backend: stick to -errno error return convention 2022-01-07 05:19:55 -05:00
vhost-iova-tree.c vhost: Add VhostIOVATree 2022-03-15 13:57:44 +08:00
vhost-iova-tree.h vhost: Add VhostIOVATree 2022-03-15 13:57:44 +08:00
vhost-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-shadow-virtqueue.c vhost: Shadow virtqueue buffers forwarding 2022-03-15 13:57:44 +08:00
vhost-shadow-virtqueue.h vhost: Shadow virtqueue buffers forwarding 2022-03-15 13:57:44 +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 Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-fs-pci.c vhost-user-fs: add the "bootindex" property 2021-01-13 09:06:37 -05:00
vhost-user-fs.c Revert "virtio: introduce macro IRTIO_CONFIG_IRQ_IDX" 2022-01-10 16:02:54 -05:00
vhost-user-i2c-pci.c hw/virtio: add vhost-user-i2c-pci boilerplate 2021-07-16 11:10:45 -04:00
vhost-user-i2c.c hw/vhost-user-i2c: Add support for VIRTIO_I2C_F_ZERO_LENGTH_REQUEST 2022-03-04 08:30:52 -05:00
vhost-user-input-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-rng-pci.c vhost-user-rng-pci: Add vhost-user-rng-pci implementation 2021-10-20 04:37:55 -04:00
vhost-user-rng.c vhost-user-rng: Add vhost-user-rng implementation 2021-10-20 04:37:55 -04:00
vhost-user-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-vsock-pci.c vhost-user-vsock-pci: force virtio version 1 2020-09-29 02:15:24 -04:00
vhost-user-vsock.c vhost-vsock: handle common features in vhost-vsock-common 2021-10-05 17:30:57 -04:00
vhost-user.c vhost-user: fix VirtQ notifier cleanup 2022-03-04 08:30:52 -05:00
vhost-vdpa.c vhost: Shadow virtqueue buffers forwarding 2022-03-15 13:57:44 +08:00
vhost-vsock-common.c vhost-vsock: detach the virqueue element in case of error 2022-03-06 05:08:23 -05:00
vhost-vsock-pci.c vhost-vsock-pci: force virtio version 1 2020-09-29 02:15:24 -04:00
vhost-vsock.c virtio/vhost-vsock: don't double close vhostfd, remove redundant cleanup 2022-01-07 19:30:13 -05:00
vhost.c vhost: use wfd on functions setting vring call fd 2022-03-06 06:19:47 -05:00
virtio-9p-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-balloon-pci.c hw/virtio/virtio-balloon: Remove the "class" property 2021-02-05 08:52:59 -05:00
virtio-balloon.c include: Move qemu_madvise() and related #defines to new qemu/madvise.h 2022-02-21 13:30:20 +00:00
virtio-blk-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-bus.c virtio: fix the condition for iommu_platform not supported 2022-03-04 08:30:52 -05:00
virtio-crypto-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-crypto.c Revert "virtio: introduce macro IRTIO_CONFIG_IRQ_IDX" 2022-01-10 16:02:54 -05:00
virtio-input-host-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-input-pci.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio-iommu-pci.c hw/arm/virt: Remove device tree restriction for virtio-iommu 2021-12-15 10:35:26 +00:00
virtio-iommu.c virtio-iommu: Support bypass domain 2022-03-06 05:08:23 -05:00
virtio-mem-pci.c qapi: Include qom-path in MEMORY_DEVICE_SIZE_CHANGE qapi events 2021-10-02 08:43:21 +02:00
virtio-mem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-mem.c hw/arm/virt: Support for virtio-mem-pci 2022-01-20 11:47:52 +00:00
virtio-mmio.c Remove unnecessary minimum_version_id_old fields 2022-01-28 15:38:23 +01:00
virtio-net-pci.c virtio-net: calculating proper msix vectors on init 2021-03-15 16:41:22 +08:00
virtio-pci.c Remove unnecessary minimum_version_id_old fields 2022-01-28 15:38:23 +01:00
virtio-pci.h Revert "virtio-pci: add support for configure interrupt" 2022-01-10 16:00:02 -05:00
virtio-pmem-pci.c virtio-pmem-pci: force virtio version 1 2020-09-29 02:14:30 -04:00
virtio-pmem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-pmem.c Mark remaining global TypeInfo instances as const 2022-02-21 13:30:20 +00:00
virtio-rng-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-rng.c sysemu: Let VMChangeStateHandler take boolean 'running' argument 2021-03-09 23:13:57 +01:00
virtio-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-serial-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio.c Remove unnecessary minimum_version_id_old fields 2022-01-28 15:38:23 +01:00