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[virtio] Support VIRTIO_NET_F_IOMMU_PLATFORM 

Since we don't enable IOMMU at all, we can then simply enable the
IOMMU support by claiming the support of VIRITO_F_IOMMU_PLATFORM.
This fixes booting failure when iommu_platform is set from qemu cli.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Jason Wang 2017-07-10 17:10:41 +08:00 committed by Michael Brown
parent d4df9f573f
commit 6a258d8d55
2 changed files with 3 additions and 1 deletions
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3
src/drivers/net/virtio-net.c
View File

@ -259,7 +259,8 @@ static int virtnet_open_modern ( struct net_device *netdev ) {
( 1ULL << VIRTIO_NET_F_MAC ) |
( 1ULL << VIRTIO_NET_F_MTU ) |
( 1ULL << VIRTIO_F_VERSION_1 ) |
( 1ULL << VIRTIO_F_ANY_LAYOUT ) ) );
( 1ULL << VIRTIO_F_ANY_LAYOUT ) |
( 1ULL << VIRTIO_F_IOMMU_PLATFORM ) ) );
vpm_add_status ( &virtnet->vdev, VIRTIO_CONFIG_S_FEATURES_OK );
status = vpm_get_status ( &virtnet->vdev );

1
src/include/ipxe/virtio-ring.h
View File

@ -20,6 +20,7 @@
#define VIRTIO_F_ANY_LAYOUT 27
/* v1.0 compliant. */
#define VIRTIO_F_VERSION_1 32
#define VIRTIO_F_IOMMU_PLATFORM 33
#define MAX_QUEUE_NUM (256)