[Xen-devel] why xen use x86_emulation() in page_fault

[cc Luit <universalbillow@xxxxxxxxx>]

Hi, everyone, I have a question,

in the shadow_page_fault or ept mechanism, xen will use the x86_emulation for some instructions, I'm wondering why it must use it, if after we fix the SPT or EPT table, just VMEntry to HVM to re-excute this instruction  but not emulate in xen, is there some problems?

 

can sb. tell me why?

thanks:)

--
- Luit @ Parallel Processing Institute, Fudan University 

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