diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2024-03-12 12:14:24 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-03-12 12:14:24 -0500 |
| commit | c5176fd9e63aa8de2255ba95808badefbc4c9387 (patch) | |
| tree | 114fa94d46415b7c8a8ed7af7f27c4d4e6438018 /drivers/pci | |
| parent | b8de187056f10f31739cad3d7b66677415f79883 (diff) | |
| parent | 29a43dc130ce65d365a8ea9e1cc4bc51005a353e (diff) | |
Merge branch 'pci/virtualization'
- 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
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index eff7f5df08e2..bf4833221816 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3766,6 +3766,14 @@ 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 * the device stops working. Prevent bus reset for these devices. With |