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[Xen-devel] question on share ept page table with vtd



Hi all

I have a question with the page table share between EPT and VTD which is 
enabled by default. Currently, we will enable log_dirty mode to track vram. And 
when first enable the log dirty mode, it will set all guest ram to readonly in 
EPT entry. The question is that if a page is current used as DMA write buffer, 
isn't it a problem?

best regards
yang


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