Hi, I posted about a month ago on linux-wireless about an Ath9k card that was causing my host machine to freeze/lock up when doing PCI passthrough into a VM. This was resolved by adding: DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0034, quirk_no_bus_reset); to drivers/pci/quirks.c and rebuilding the host kernel. Original thread: https://marc.info/?l=linux-wireless&m=154689580213002&w=2 I am now trying to get this BCM43602 card working under the same conditions but again I am seeing the host machine freeze when starting the VM. I did try adding a similar line for this card, which actually prevented the machine from freezing, but I am seeing this when starting the VM: qemu-system-x86_64: vfio: Cannot reset device 0000:0a:00.0, no available reset mechanism. And once inside the VM the device is UNCLAIMED and not usable: $ lshw -C network *-network:2 UNCLAIMED description: Network controller product: BCM43602 802.11ac Wireless LAN SoC vendor: Broadcom Limited physical id: 6 bus info: pci@0000:00:06.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress cap_list configuration: latency=0 resources: memory:fe890000-fe897fff memory:fe400000-fe7fffff This change was really a shot in the dark as I only have a vague understanding of what its actually doing. I see other entries in quirks.c for the Broadcom vendor ID but would rather not go poking around here without any direction. Thanks, James
