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Re: [Xen-devel] run time memory trap question


> > Something like this.
> This solution sounds good.
> If I remembered correctly, you are writing a driver for IPU/GPU MMU, right?

Right. And for now I started developing something like shadow page
table algorithm. I need to create a trap for a real pagetable, which
is placed somewhere in domain heap memory. That's why I thought about
generic algorithm which can create a runtime trap for memory, which
address is not defined during compile time.

> In this case, I think a per-domain MMU handlers would be better. Most of
> handlers will be used for a specific guest (except the VGIC handler).

Do you mean that existing mmio_handlers[] are global and new runtime
memory handlers should be per domain? This sounds quite reasonable.



Andrii Tseglytskyi | Embedded Dev

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