Hello, I have a question about how guest page table and shadow page table work together and more precisely, about how host is involved when guest access a page that it's already in the page table.
The guest maintains its page table to translate guest virtual address to guest physical address. It uses the MMU and cr3 register for the translation. When there is a page fault, the host gets involved and it catches the guest physical address (by walking through the guest page table?) and fills its shadow page table. Thus the host can make the translation from guest physical address to physical address. Now, if the guest reads the same page, the PTE will point to guest physical address but there will not be any page fault so the host will not be involved in the translation (not so sure). I don't see how the guest virtual address will be translated to physical address? I miss something but I don't see what. Thanks for your help, Guillaume ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
