From: James Prestwood james.prestwood@linux.intel.com
commit 6afb7e26978da5e86e57e540fdce65c8b04f398a upstream.
When using PCI passthrough with this device, the host machine locks up completely when starting the VM, requiring a hard reboot. Add a quirk to avoid bus resets on this device.
Fixes: c3e59ee4e766 ("PCI: Mark Atheros AR93xx to avoid bus reset") Link: https://lore.kernel.org/linux-pci/20190107213248.3034-1-james.prestwood@linu... Signed-off-by: James Prestwood james.prestwood@linux.intel.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com CC: stable@vger.kernel.org # v3.14+ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3408,6 +3408,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_A DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0032, quirk_no_bus_reset); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x003c, quirk_no_bus_reset); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0033, quirk_no_bus_reset); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset);
/* * Root port on some Cavium CN8xxx chips do not successfully complete a bus