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virtio: add support for 64 bit features.

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Change u32 to u64, and use BIT_ULL and 1ULL everywhere.

Note: transports are unchanged, and only set low 32 bit.
This guarantees that no transport sets e.g. VERSION_1
by mistake without proper support.

Based on patch by Rusty.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
This commit is contained in:
Michael S. Tsirkin
2014-10-07 16:39:43 +02:00
parent 0ffaeadfc4
commit d025477368
11 changed files with 23 additions and 23 deletions
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2
drivers/virtio/virtio_mmio.c
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@@ -142,7 +142,7 @@ struct virtio_mmio_vq_info {
/* Configuration interface */
static u32 vm_get_features(struct virtio_device *vdev)
static u64 vm_get_features(struct virtio_device *vdev)
{
struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev);