Commit 0d583647 authored by Richard Henderson's avatar Richard Henderson Committed by Michael S. Tsirkin
Browse files

virtio: Notice when the system doesn't support MSIx at all 



And do not issue an error_report in that case.

Signed-off-by: default avatarRichard Henderson <rth@twiddle.net>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 79859507

hw/virtio/virtio-pci.c

+11 −6
Original line number Diff line number Diff line
@@ -1491,13 +1491,18 @@ static void virtio_pci_device_plugged(DeviceState *d, Error **errp) 
        pci_set_long(cfg_mask->pci_cfg_data, ~0x0);

    }



    if (proxy->nvectors &&

        msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors,

                                proxy->msix_bar)) {

    if (proxy->nvectors) {

        int err = msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors,

                                          proxy->msix_bar);

        if (err) {

            /* Notice when a system that supports MSIx can't initialize it.  */

            if (err != -ENOTSUP) {

                error_report("unable to init msix vectors to %" PRIu32,

                             proxy->nvectors);

            }

            proxy->nvectors = 0;

        }

    }



    proxy->pci_dev.config_write = virtio_write_config;

    proxy->pci_dev.config_read = virtio_read_config;