Re: [Qemu-devel] [PATCH RFC v5 0/5] virtio-iommu: VFIO integration

[Auger Eric <eric.auger@redhat.com>]

Hi Bharat,

On 3/2/20 6:12 AM, Bharat Bhushan wrote:
> 
> Hi Eric, 
> 
> On Fri, Feb 28, 2020 at 3:06 PM Auger Eric <eric.auger@redhat.com
> <mailto:eric.auger@redhat.com>> wrote:
> 
>     Hi Bharat,
> 
>     On 11/27/18 7:52 AM, Bharat Bhushan wrote:
>     > This patch series integrates VFIO with virtio-iommu. This is
>     > tested with assigning 2 pci devices to Virtual Machine.
>     >
>     > This version is mainly about rebasing on v9 version on
>     > virtio-iommu device framework from Eric Augur.
>     >
>     > This patch series allows PCI pass-through using virtio-iommu.
>     >
>     > This series is based on:
>     >  - virtio-iommu kernel driver by Jean-Philippe Brucker
>     >     [PATCH v5 0/7] Add virtio-iommu driver
>     >     git://linux-arm.org/kvmtool-jpb.git
>     <http://linux-arm.org/kvmtool-jpb.git> virtio-iommu/v0.9
>     >
>     >  - virtio-iommu device emulation by Eric Augur.
>     >    [RFC,v9,00/17] VIRTIO-IOMMU device
>     >    https://github.com/eauger/qemu/tree/v3.1.0-rc2-virtio-iommu-v0.9
> 
>     Now we have the driver and the base qemu device upstream we may resume
>     this activity to complete the VFIO integration. Do you intend the
>     respin? Otherwise let me know if you want me to help.
> 
> 
> Yes Eric, I am planning to respin the changes.
> 
> Can you please point to latest changes (qemu/Linux both).
the driver and the base qemu device are upstream. This only boots in DT
mode at the moment with machvirt. Use -virtio-iommu-pci to instantiate
the device. About the qemu device, you will find latest changes in the
v16 history log: https://patchwork.kernel.org/cover/11382271/

Thanks

Eric

> 
> Thanks
> -Bharat
> 
>     Thanks
> 
>     Eric
>     >
>     > v4->v5:
>     >  - Rebase to v9 version from Eric
>     >  - PCIe device hotplug fix
>     >  - Added Patch 1/5 from Eric previous series (Eric somehow dropped in
>     >    last version.
>     >  - Patch "Translate the MSI doorbell in kvm_arch_fixup_msi_route"
>     >    already integrated with vsmmu3
>     >
>     > v3->v4:
>     >  - Rebase to v4 version from Eric
>     >  - Fixes from Eric with DPDK in VM
>     >  - Logical division in multiple patches
>     >
>     > v2->v3:
>     >  - This series is based on "[RFC v3 0/8] VIRTIO-IOMMU device"
>     >    Which is based on top of v2.10-rc0 that
>     >  - Fixed issue with two PCI devices
>     >  - Addressed review comments
>     >
>     > v1->v2:
>     >   - Added trace events
>     >   - removed vSMMU3 link in patch description
>     >
>     > Bharat Bhushan (4):
>     >   virtio-iommu: Add iommu notifier for iommu-map/unmap
>     >   virtio-iommu: Call iommu notifier on attach/detach
>     >   virtio-iommu: add virtio-iommu replay
>     >   virtio-iommu: handle IOMMU Notifier flag changes
>     >
>     > Eric Auger (1):
>     >   hw/vfio/common: Do not print error when viommu translates into
>     an mmio
>     >     region
>     >
>     >  hw/vfio/common.c                 |   2 -
>     >  hw/virtio/trace-events           |   5 +
>     >  hw/virtio/virtio-iommu.c         | 190
>     ++++++++++++++++++++++++++++++-
>     >  include/hw/virtio/virtio-iommu.h |   6 +
>     >  4 files changed, 198 insertions(+), 5 deletions(-)
>     >
> 
> 
> 
> -- 
> -Bharat