static void vfio_probe_nvidia_bar5_quirk(VFIOPCIDevice *vdev, int nr)

{

    VFIOQuirk *quirk;

    VFIONvidiaBAR5Quirk *bar5;

    VFIOConfigWindowQuirk *window;



    if (!vfio_pci_is(vdev, PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID) ||

        !vdev->has_vga || nr != 5) {

        return;

    }



    quirk = g_malloc0(sizeof(*quirk));

    quirk->mem = g_malloc0(sizeof(MemoryRegion) * 4);

    quirk->nr_mem = 4;

    bar5 = quirk->data = g_malloc0(sizeof(*bar5) +

                                   (sizeof(VFIOConfigWindowMatch) * 2));

    window = &bar5->window;



    window->vdev = vdev;

    window->address_offset = 0x8;

    window->data_offset = 0xc;

    window->nr_matches = 2;

    window->matches[0].match = 0x1800;

    window->matches[0].mask = PCI_CONFIG_SPACE_SIZE - 1;

    window->matches[1].match = 0x88000;

    window->matches[1].mask = PCIE_CONFIG_SPACE_SIZE - 1;

    window->bar = nr;

    window->addr_mem = bar5->addr_mem = &quirk->mem[0];

    window->data_mem = bar5->data_mem = &quirk->mem[1];



    memory_region_init_io(window->addr_mem, OBJECT(vdev),

                          &vfio_generic_window_address_quirk, window,

                          "vfio-nvidia-bar5-window-address-quirk", 4);

    memory_region_add_subregion_overlap(&vdev->bars[nr].region.mem,

                                        window->address_offset,

                                        window->addr_mem, 1);

    memory_region_set_enabled(window->addr_mem, false);



    memory_region_init_io(window->data_mem, OBJECT(vdev),

                          &vfio_generic_window_data_quirk, window,

                          "vfio-nvidia-bar5-window-data-quirk", 4);

    memory_region_add_subregion_overlap(&vdev->bars[nr].region.mem,

                                        window->data_offset,

                                        window->data_mem, 1);

    memory_region_set_enabled(window->data_mem, false);



    memory_region_init_io(&quirk->mem[2], OBJECT(vdev),

                          &vfio_nvidia_bar5_quirk_master, bar5,

                          "vfio-nvidia-bar5-master-quirk", 4);

    memory_region_add_subregion_overlap(&vdev->bars[nr].region.mem,

                                        0, &quirk->mem[2], 1);



    memory_region_init_io(&quirk->mem[3], OBJECT(vdev),

                          &vfio_nvidia_bar5_quirk_enable, bar5,

                          "vfio-nvidia-bar5-enable-quirk", 4);

    memory_region_add_subregion_overlap(&vdev->bars[nr].region.mem,

                                        4, &quirk->mem[3], 1);



    QLIST_INSERT_HEAD(&vdev->bars[nr].quirks, quirk, next);



    trace_vfio_quirk_nvidia_bar5_probe(vdev->vbasedev.name);

}
