On 13.08.2022 03:38, Marek Marczykowski-Górecki wrote:
> --- a/xen/drivers/passthrough/iommu.c
> +++ b/xen/drivers/passthrough/iommu.c
> @@ -669,6 +669,51 @@ bool_t iommu_has_feature(struct domain *d, enum
> iommu_feature feature)
> return is_iommu_enabled(d) && test_bit(feature,
Add API similar to rmrr= and ivmd= arguments, but in a common code. This
will allow drivers to register reserved memory regardless of the IOMMU
vendor.
The direct reason for this API is xhci-dbc console driver (aka xue),
that needs to use DMA. But future change may unify command line
arguments for
