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Merge branch 'pci/virtualization'

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- Avoid Secondary Bus Reset on the LSI / Agere FW643, which allows it to be
  assigned to VMs with VFIO, at the cost of leaking FW643 state between VMs
  (Edmund Raile)

* pci/virtualization:
  PCI: Mark LSI FW643 to avoid bus reset
This commit is contained in:
Bjorn Helgaas 2024-03-12 12:14:24 -05:00
commit c5176fd9e6
1 changed files with 8 additions and 0 deletions
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8
drivers/pci/quirks.c
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@ -3765,6 +3765,14 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003e, quirk_no_bus_reset);
*/
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CAVIUM, 0xa100, quirk_no_bus_reset);
/*
* Apparently the LSI / Agere FW643 can't recover after a Secondary Bus
* Reset and requires a power-off or suspend/resume and rescan. Prevent
* use of that reset.
*/
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATT, 0x5900, quirk_no_bus_reset);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATT, 0x5901, quirk_no_bus_reset);
/*
* Some TI KeyStone C667X devices do not support bus/hot reset. The PCIESS
* automatically disables LTSSM when Secondary Bus Reset is received and