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How to make a Hypercall in Xen ?

March 3, 2011

Hyper-call is the communication channel between domains and Xen. This ensures security between domains.

How to make a Hypercall in Xen ?

1. add entry of hypercall in /include/xen/hypercall.h and
/include/xen/asmx86/hypercall.h
2.make entry in /arch/x86/x86_32/entry.S
(.long)
make entry in /arch/x86/x86_64/entry.S
(.quad)
3.make entry in /include/public/xen.h

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From → Kernel, Xen

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