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Re: [Xen-devel] [RFC v3 5/6] xen/arm: Add log_dirty support for ARM

On 05/11/2014 10:28 AM, Julien Grall wrote:
  the guest very soon. With this
solution there is a 1GB hole between the 2 banks. Your function will therefore
stop to work.

Furthermore, Xen should not assume that the layout of the guest will always 

I think you can use max_mapped_pfn and lowest_mapped_pfn here. You may need to
modify a bit the signification of it in the p2m code or introduce a new field.
These two values don't work for the purpose of dirty tracking. What we need are two fields to track _physical_ memory. lowest_mapped_pfn tracks all memory types, which doesn't apply here.

Will new fields to track physical ram space acceptable for you?


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