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PCI: Mark Atheros AR9462 to avoid bus reset

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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: c3e59ee4e7 ("PCI: Mark Atheros AR93xx to avoid bus reset")
Link: https://lore.kernel.org/linux-pci/20190107213248.3034-1-james.prestwood@linux.intel.com
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>
This commit is contained in:
James Prestwood 2019-01-07 13:32:48 -08:00 • committed by Greg Kroah-Hartman
parent 0dc2ad06dd
commit 566004721c
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/quirks.c
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@ -3141,6 +3141,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset);
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);
static void quirk_no_pm_reset(struct pci_dev *dev)
{