[Xen-devel] MFN to hypervisor page table translation?

["Langsdorf, Mark" <mark.langsdorf@xxxxxxx>]

 

I have a chunk of memory in the hypervisor that
I allocated with alloc_boot_low_pages(), which
seems to return an MFN.  I need to remove the
chunk of memory from the hypervisor's page
tables, so that the processor cannot speculate
into it while running the hypervisor. 

In Linux, I would call pdg_offset() and
work my way down the page tables to to
pte_offset_map.  What are the equivalent
function calls in Xen?  What include file
or source file should I be checking to
better understand this process?

Thanks in advance for any help.

-Mark Langsdorf
Operating System Research Center
AMD

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