CVSROOT:        /cvs
Module name:    src
Changes by:     [email protected]    2025/08/01 08:41:03

Modified files:
        sys/dev/pv     : if_vio.c vioblk.c vioscsi.c virtio.c 

Log message:
virtio: Allow DMA mem above 4G

Allow to use memory above 4G on amd64 for virtio rings and
descriptors. This may reduce pressure on dma-able memory a bit.

For the virtio ring address, virtio 0.9 has a 2^44 limit. Use
bus_dmamem_alloc_range there.

With input from kettenis@
ok mlarkin@

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