Re: [Xen-users] what hypercalls are supported in user-level HVM guests?

[Big Strong <fangtuo90@xxxxxxxxx>]

Hi, again. I've checked the hvm_hypercall_tableÂin xen/arch/x86/hvm/hvm.c and find only 14 hypercalls available to HVM guests, much more less than than defined in xen/include/public/Xen.h. Here is the problem, what if I need a nested Xen installed in a HVM guest? Would the nested Xen only capable of issuing HVM hypercalls?

2015-09-22 21:56 GMT+08:00 Big Strong <fangtuo90@xxxxxxxxx>:

Yes, it is. Thank you.

2015-09-22 20:26 GMT+08:00 Ian Campbell <ian.campbell@xxxxxxxxxx>:

On Tue, 2015-09-22 at 20:03 +0800, Big Strong wrote:
> Where can IÂ find the hvm specific hypercall dispatch table then? I've
> digged into Xen source code and found no special hypercall table for HVM,
> even though there is a entry.S file under /xen/arch/x86/hvm folder, no
> hypercall entries are defined there.

hvm_hypercall{32,64}_table in xen/arch/x86/hvm/hvm.c.

Ian.

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