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[v9,0/2] vhost-vdpa: add support for vIOMMU

Message ID 20221031031020.1405111-1-lulu@redhat.com
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Series vhost-vdpa: add support for vIOMMU | expand

Message

Cindy Lu Oct. 31, 2022, 3:10 a.m. UTC 
These patches are to support vIOMMU in vdpa device

changes in V3
1. Move function vfio_get_xlat_addr to memory.c
2. Use the existing memory listener, while the MR is
iommu MR then call the function iommu_region_add/
iommu_region_del

changes in V4
1.make the comments in vfio_get_xlat_addr more general

changes in V5
1. Address the comments in the last version
2. Add a new arg in the function vfio_get_xlat_addr, which shows whether
the memory is backed by a discard manager. So the device can have its
own warning.

changes in V6
move the error_report for the unpopulated discard back to
memeory_get_xlat_addr

changes in V7
organize the error massage to avoid the duplicate information

changes in V8
Organize the code follow the comments in the last version

changes in V9
Organize the code follow the comments

Cindy Lu (2):
  vfio: move implement of vfio_get_xlat_addr() to memory.c
  vhost-vdpa: add support for vIOMMU

 hw/vfio/common.c               |  66 ++----------------
 hw/virtio/vhost-vdpa.c         | 123 ++++++++++++++++++++++++++++++---
 include/exec/memory.h          |   4 ++
 include/hw/virtio/vhost-vdpa.h |  10 +++
 softmmu/memory.c               |  72 +++++++++++++++++++
 5 files changed, 203 insertions(+), 72 deletions(-)