Re: [patch 0/8] [Intel IOMMU] Support for Intel Virtualization Technologyfor Directed I/O

[Jeff Garzik]

Shaohua Li wrote:
> DMA remapping just uses ACPI table to tell which dma remapping engine a
> pci device is controlled by at boot time. At run time, DMA remapping
> hasn't any interactive with ACPI.

The Linux kernel _really_ wants a non-ACPI way to detect this.

Just use the hardware registers themselves, you don't need an ACPI table.

	Jeff


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