tone.zhang bf6a6019b2 Doc: Clarify the IOMMU configuration for User Space Drivers

In the case system charges PCI devices with the "uio_pci_generic"
kernel driver, the IOMMU should be disabled or passthrough, because
the virtual / physical address conversion by IOMMU will make the DMA
transmission invalid.

The patch guides users configure IOMMU in SPDK target system on both
x86_64 and arm64 systems.

Change-Id: I66df4df855a6669d4838eb88bd400ded87d08a49
Signed-off-by: tone.zhang <tone.zhang@arm.com>
Reviewed-on: https://review.gerrithub.io/424470
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>

2018-11-05 22:15:41 +00:00

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