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libqos: extend feature bits to 64-bit

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In VIRTIO 1.0 feature bits changed from 32-bit to 64-bit.  (In fact, the
transports allow even more feature bits but nothing uses more than 64
bits today.)

Add 64-bit feature bit support to virtio-mmio and virtio-pci.  This will
be necessary for VIRTIO 1.0 support.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191023100425.12168-4-stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2019-10-23 11:04:12 +01:00 • committed by Michael S. Tsirkin
parent 60ce3a40fc
commit a9340358f4
6 changed files with 43 additions and 27 deletions
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6
tests/libqos/virtio-net.c
View file

@ -44,11 +44,11 @@ static void virtio_net_setup(QVirtioNet *interface)
features = qvirtio_get_features(vdev);
features &= ~(QVIRTIO_F_BAD_FEATURE |
(1u << VIRTIO_RING_F_INDIRECT_DESC) |
(1u << VIRTIO_RING_F_EVENT_IDX));
(1ull << VIRTIO_RING_F_INDIRECT_DESC) |
(1ull << VIRTIO_RING_F_EVENT_IDX));
qvirtio_set_features(vdev, features);
if (features & (1u << VIRTIO_NET_F_MQ)) {
if (features & (1ull << VIRTIO_NET_F_MQ)) {
interface->n_queues = qvirtio_config_readw(vdev, 8) * 2;
} else {
interface->n_queues = 2;