Ha, looks like there are a fix for this issue in the upstream:
hwang4@hwang4-ThinkPad-T14s-Gen-2a:~/work/mainline/linux$ git show
320302baed05c6456164652541f23d2a96522c06
commit 320302baed05c6456164652541f23d2a96522c06
Author: Lu Baolu <[email protected]>
Date: Tue May 20 15:58:49 2025 +0800
iommu/vt-d: Restore context entry setup order for aliased devices
Commit 2031c469f816 ("iommu/vt-d: Add support for static identity domain")
changed the context entry setup during domain attachment from a
set-and-check policy to a clear-and-reset approach. This inadvertently
introduced a regression affecting PCI aliased devices behind PCIe-to-PCI
bridges.
Specifically, keyboard and touchpad stopped working on several Apple
Macbooks with below messages:
kernel: platform pxa2xx-spi.3: Adding to iommu group 20
kernel: input: Apple SPI Keyboard as
/devices/pci0000:00/0000:00:1e.3/pxa2xx-spi.3/spi_master/spi2/spi-APP000D:00/input/input0
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr
0xffffa000 [fault reason 0x06] PTE Read access is not set
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr
0xffffa000 [fault reason 0x06] PTE Read access is not set
kernel: applespi spi-APP000D:00: Error writing to device: 01 0e 00 00
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Read NO_PASID] Request device [00:1e.3] fault addr
0xffffa000 [fault reason 0x06] PTE Read access is not set
kernel: DMAR: DRHD: handling fault status reg 3
kernel: applespi spi-APP000D:00: Error writing to device: 01 0e 00 00
Fix this by restoring the previous context setup order.
Fixes: 2031c469f816 ("iommu/vt-d: Add support for static identity domain")
Closes:
https://lore.kernel.org/all/[email protected]/
Cc: [email protected]
Signed-off-by: Lu Baolu <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
Reviewed-by: Yi Liu <[email protected]>
Link:
https://lore.kernel.org/r/[email protected]
Link:
https://lore.kernel.org/r/[email protected]
Signed-off-by: Joerg Roedel <[email protected]>
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https://bugs.launchpad.net/bugs/2107976
Title:
Apple spi keyboard/trackpad not working 25.04
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