Displaying 2 results from an estimated 2 matches for "xi_invld_mfn".
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xi_invl_mfn
2006 Jul 01
3
Page fault is 4 times faster with XI shadow mechanism
...ce it could cost a lot of time.
> 2) GP back link plays a very important role in XI shadow pgt. However,
> it will also cause high memory pressure for the domain(2 pages for each
> smfn). For these normal guest pages instead of GPT pages, I guess its
> usage is limited. Only when invoke xi_invld_mfn, divide_large_page or
> dirty logging, we will refer to the back link for these normal guest
> pages. Is it reasonable to implement the back link only for the GPT
> pages? Of course, this will increase the complexity of the code a little.
> 3) Can you show us the statistics between the...
2006 Jun 30
5
[PATCH - proposed] XI Shadow Page Table Mechanism]
Hi, Robert,
I found out another confusing code snippet:
in void xi_invl_mfn(struct domain *d, unsigned long mfn)
if (ext && pfn < ext->large_page_aligned_size)
According to the code, it should be
if (ext && (pfn>>SPT_ENTRIES_ORDER) < ext->large_page_aligned_size)
If I made any mistake, please point it out.