megasas: use PCI DMA API
MegaSAS emulation is not IOMMU-friendly. Fix this by switching to
pci_dma_* functions.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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MegaSAS emulation is not IOMMU-friendly. Fix this by switching to
pci_dma_* functions.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>