Hi Zhengzhong On 11/20/23 11:09, Duan, Zhenzhong wrote: > >> -----Original Message----- >> From: Eric Auger <eric.au...@redhat.com> >> Sent: Monday, November 20, 2023 5:15 PM >> Subject: Re: [PATCH v6 00/21] vfio: Adopt iommufd >> >> Hi Zhenzhong, >> >> On 11/14/23 11:09, Zhenzhong Duan wrote: >>> Hi, >>> >>> Thanks all for giving guides and comments on previous series, this is >>> the remaining part of the iommufd support. >>> >>> Based on Cédric's suggestion, replace old config method for IOMMUFD >>> with Kconfig. >>> >>> Based on Jason's suggestion, drop the implementation of manually >>> allocating hwpt and switch to IOAS attach/detach. >>> >>> Beside current test, we also tested mdev with mtty for better cover range. >>> >>> PATCH 1: Introduce iommufd object >>> PATCH 2-9: add IOMMUFD container and cdev support >>> PATCH 10-17: fd passing for cdev and linking to IOMMUFD >>> PATCH 18: make VFIOContainerBase parameter const >>> PATCH 19-21: Compile out for IOMMUFD for arm, s390x and x86 >>> >>> >>> We have done wide test with different combinations, e.g: >>> - PCI device were tested >>> - FD passing and hot reset with some trick. >>> - device hotplug test with legacy and iommufd backends >>> - with or without vIOMMU for legacy and iommufd backends >>> - divices linked to different iommufds >>> - VFIO migration with a E800 net card(no dirty sync support) passthrough >>> - platform, ccw and ap were only compile-tested due to environment limit >>> - test mdev pass through with mtty and mix with real device and different BE >>> >>> Given some iommufd kernel limitations, the iommufd backend is >>> not yet fully on par with the legacy backend w.r.t. features like: >>> - p2p mappings (you will see related error traces) >>> - dirty page sync >>> - and etc. >> Feel free to add my T-b: >> Tested-by: Eric Auger <eric.au...@redhat.com> > Thanks Eric, you mean all the patches or arm part?
Yeah sorry I failed to give details. I have tested on ARM with vfio-pci atm. So all the generic patches + ARM virt / PCI specific ones. As for VFIO-PLATFORM I need to resurrect a new environment because I have some trouble with AMD overdrive which do not expose iommu groups atm. I need to figure this out or create a new vfio-platform environment to test. Working on it ... Thanks Eric > > BRs. > Zhenzhong
