Re: [XEN RFC PATCH v4 0/5] IOMMU subsystem redesign and PV-IOMMU interface

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On Mon, Nov 04, 2024 at 02:28:38PM +0000, Teddy Astie wrote:
> * introduce "dom0-iommu=no-dma" to make default context block all DMA
>   (disables HAP and sync-pt), enforcing usage of PV-IOMMU for DMA
>   Can be used to expose properly "Pre-boot DMA protection"

This sounds like it disables HAP completely, but actually it looks like
disabling sharing HAP page tables with IOMMU ones, right? That (HAP
sharing) is relevant for PVH dom0 only, correct?

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab

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