[gentoo-user] Why vifo shutdown in 5.19.6 xanmod?

[gentoo-user] Why vifo shutdown in 5.19.6 xanmod?

[haomingbai]

I upgraded to 5.19.6 today ,using the source code pack of xanmod-sources 
provided by gentoo-zh.
I use kvmgt function till 5.18.19,however,when I use "make olddefconfig" and 
compile/install the kernel today ,kvmgt dont work.
But when I switched back to 5.18.9,it works again!And I use "lsmod|grep kvmgt" 
and "lsmod |grep mdev",finding that kvmgt,mdev are correctly loaded but vifo is 
not loaded and cannot be loaded by  modprobe vifo,modprobe vfio-iommu-type1.
This is my commandline:
root=PARTUUID=51206061-2e7d-c64b-baa4-e8fbbb937930 rootflags=subvol=rootfs 
quiet splash nvidia-drm.modeset=1 loglevel=3 intel_iommu=on i915.enable_guc=0 
resume=PARTUUID=51206061-2e7d-c64b-baa4-e8fbbb937930 resume_offset=22254052 
i915.enable_gvt=1

Re: [gentoo-user] Why vifo shutdown in 5.19.6 xanmod?

[haomingbai]

在 2022年9月5日星期一 CST 下午5:12:27，haomingbai@hotmail.com 写道：
> I upgraded to 5.19.6 today ,using the source code pack of xanmod-sources
> provided by gentoo-zh.
> I use kvmgt function till 5.18.19,however,when I use "make olddefconfig" and
> compile/install the kernel today ,kvmgt dont work.
> But when I switched back to 5.18.9,it works again!And I use "lsmod|grep
> kvmgt" and "lsmod |grep mdev",finding that kvmgt,mdev are correctly loaded
> but vifo is not loaded and cannot be loaded by  modprobe vifo,modprobe
> vfio-iommu-type1. This is my commandline:
> root=PARTUUID=51206061-2e7d-c64b-baa4-e8fbbb937930 rootflags=subvol=rootfs
> quiet splash nvidia-drm.modeset=1 loglevel=3 intel_iommu=on
> i915.enable_guc=0 resume=PARTUUID=51206061-2e7d-c64b-baa4-e8fbbb937930
> resume_offset=22254052 i915.enable_gvt=1

I've got it wrong.
When I use lsmod|grep vfio,I saw vfio loaded but not used by mdev.
So I think it might be some changes happened to the kernel config that this 
link between mdev and vfio had been broken.