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Re: [Xen-devel] no definition of virtualization exception in exception table

On Thu, Apr 28, 2016 at 3:37 AM, Big Strong <fangtuo90@xxxxxxxxx> wrote:
> There is a #VE exception defined in p2086 of Intel Software Development
> Manual, however, no definition of exception handler is availble in Xen 4.6.
> Should I define the handler by myself by modifying the source code of xen,
> or is there a way to define the handler of the reserved IDT vectors (0-31,
> #VE is 20) without modifying the source code?

What are you actually trying to do?

Xen shouldn't be generating #VEs itself, so it doesn't need a #VE
handler.  Those should only be generated by guests in HVM mode (if I'm
remembering things correctly).  In those cases the #VE will either be
delivered directly to the guest, or it will cause a VMEXIT.


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