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dma_physaddr
2012 Mar 23
10
[hybrid] : mmap pfn space...
Hi Ian/Stefano,
So, I''m back to using pfn space from maxphysaddr below. Stefano, you
suggested ballooning, but that would be just too slow. There are lot of
pages to be mapped, 4k at a time during guest creation, and I am afraid
ballooning and hypercalls to populate EPT will be pretty slow.
OTOH, there is tons of address space available between max-physaddr and...