Re: [PATCH v2 0/2] Two minor fixes on virtio-iommu and smmu

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

Hi Zhenzhong,

On 1/25/24 08:37, Zhenzhong Duan wrote:
> Hi,
>
> PATCH1 fixes a potential issue with vfio devices when reboot to a
> different OS which set bus number differently from previous OS.
> I didn't reproduce the issue in reality, but it's still possible
> in theory. VTD doesn't have same issue as it use some verify logic
> to ensure right iommu MR is picked.
>
> PATCH2 does same thing for smmu.
>
> v2:
> - Remove redundant memset in realize (Cédric)
> - Add a patch for smmu (Eric)
> - Drop the patch to support PCI device alias for now, as it's tricky in
>   using two different IOMMU MRs and Eric already sent a smarter fix.

For the series:

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>

Thanks

Eric

>
>
> Thanks
> Zhenzhong
>
> Zhenzhong Duan (2):
>   virtio_iommu: Clear IOMMUPciBus pointer cache when system reset
>   smmu: Clear SMMUPciBus pointer cache when system reset
>
>  hw/arm/smmu-common.c     | 2 ++
>  hw/virtio/virtio-iommu.c | 4 ++--
>  2 files changed, 4 insertions(+), 2 deletions(-)
>