[Xen-devel] Page Table Entry Modifications

[Gohar Irfan <goharirfan94@xxxxxxxxx>]

Hi All,

I want to know if, in the case of HVM (shadow page tables), we can change the machine frame number pointed to by a page table entry?Â

An overly simplified example would be: let's say I have page number 10 that is pointing to machine frame number 10, but I would like it to point to machine frame number 1? Can this be achieved inside the "sh_page_fault" function inside "xen/arch/x86/mm/shadow/multi.c" as this seems like a relevant place for this modification to me.

Thanks!

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