Hey Lu Baolu,
thanks for your review!
On Thu, Aug 15, 2019 at 01:01:57PM +0800, Lu Baolu wrote:
> > +#define IOMMU_CMD_LINE_DMA_API (1 << 0)
>
> Prefer BIT() micro?
Yes, I'll change that.
> > + iommu_set_cmd_line_dma_api();
>
> IOMMU command line is also set in other places, for example,
> iommu_setup() (arch/x86/kernel/pci-dma.c). Need to call this there as
> well?
You are right, I'll better add a 'bool cmd_line' parameter to the
iommu_set_default_*() functions and tell the IOMMU core this way. That
will also fix iommu=pt/nopt.
Thanks,
Joerg
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