Re: [REGRESSION] applespi from 6.12 onwards

[kobarity <kobarity@gmail.com>]

Baolu Lu wrote:
> On 5/11/25 21:31, kobarity wrote:
> > 
> > Hi
> > 
> > I'm also experiencing this problem on my MacBookPro14,3.
> > 
> > Aditya Garg wrote:
> >> 
> >> Hi Jörg
> >> 
> >> Can you test the kernel here to see if this fixes your issue:
> >> 
> >> https://github.com/t2linux/T2-Debian-and-Ubuntu-Kernel/actions/runs/14944200356
> >> 
> >> Alternatively you can try compiling your own kernel with this patch:
> >> 
> >> https://lore.kernel.org/all/0-v1-c26553717e90+65f-iommu_vtd_ss_wo_jgg@nvidia.com/
> > 
> > As far as I have tried, this patch did not solve the problem.
> > 
> > By bisecting, I found that this problem was introduced by commit
> > 2031c469f816 ("iommu/vt-d: Add support for static identity domain").
> > In fact, since this commit, it will panic at startup.  This panic was
> > fixed by commit 6e02a277f1db ("iommu/vt-d: Fix incorrect
> > pci_for_each_dma_alias() for non-PCI devices").  So I applied commit
> > 6e02a277f1db on commit 2031c469f816 and confirmed that the keyboard
> > and touchpad is not working.
> 
> Have you tried to apply commit 64f792981e35 ("iommu/vt-d: Remove device
> comparison in context_setup_pass_through_cb")?

Yes, I tried it on yesterday's master branch, including commit
64f792981e35.

- Keyboard/Touchpad NOT working:
  - No patches
  - With patch in https://lore.kernel.org/all/0-v1-c26553717e90+65f-iommu_vtd_ss_wo_jgg@nvidia.com/
- Keyboard/Touchpad working:
  - With my workaround patch