intel-hda: Use PCI DMA stub functions
This updates the intel-hda device emulation to use the explicit PCI DMA functions, instead of directly calling physical memory access functions. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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