Re: [PATCH v12 0/1] vhost-vdpa: add support for vIOMMU

[Michael S. Tsirkin]

On Fri, Dec 09, 2022 at 09:08:04PM +0800, Cindy Lu wrote:
> These patches are to support vIOMMU in vdpa device
> Verified in vp_vdpa/vdpa_sim_net driverand intel_iommu
> virtio-iommu device

Pls address comments and repost.

> 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
> 
> changes in V10
> Address the comments
> 
> changes in V11
> Address the comments
> fix the crash found in test
> 
> changes in V12
> Address the comments, squash patch 1 into the next patch
> improve the code style issue
> 
> Cindy Lu (1):
>   vhost-vdpa: add support for vIOMMU
> 
>  hw/virtio/vhost-vdpa.c         | 162 ++++++++++++++++++++++++++++++---
>  include/hw/virtio/vhost-vdpa.h |  10 ++
>  2 files changed, 161 insertions(+), 11 deletions(-)
> 
> -- 
> 2.34.3