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Re: [Xen-devel] Reserved-memory node handling in XEN ( WAS Re: [ARM] Handling CMA pool device nodes in Dom0)

Dear Julien,

On 27.07.17 12:55, Julien Grall wrote:
It really depends on the security impact here. If the reserved memory is shared with other device, what would be the impact of a domain using the wrong memory attribute?
I'm sorry, I did not get the point.
Could you please provide an example of a security impact?

Furthermore, using the weakest one would imply cache maintenance when the region is assigned/deassigned to/from a domain to prevent leaking data.
Could you please provide an example scenario for data leakage?


*Andrii Anisov*

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