Xen devel - May 2006 - How to add arch specific operations to dom0_op hypercall ?

Hi,

for Xen/ia64 I''d like to add a new dom0_op operation to setup domU
firmware.

Should I declare this new operation in xen/public/dom0_op.h ?
Should I create a new arch-specific hypercall for this purpose ?
Should I create DOM0_ARCH_1 operations ?  This seems to be an chicken-egg 
solution, because the operations cannot be declare in arch-xxx.h (because it 
needs other declarations from xen.h).

Tristan.

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