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

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Subject:	[Xen-devel] why xen use x86_emulation() in page_fault
From:	cc Luit <universalbillow@xxxxxxxxx>
Date:	Tue, 11 Oct 2011 09:58:57 +0800
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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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