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[suspend/resume] Debugging via console

Hi list,

Is there any way to have access to some debugging console through hypervisor for a domU?

The goal is to have some kind of "failback" access for basic printk() operations for debugging purposes, in case xencons device suspend/resume goes horribly wrong in a domU.

There is still the HYPERVISOR_console_io hypercall, but I do not know if it is the proper way to do it. BTW, it is restricted to dom0, except when Xen is built with debug.

Thanks for your help :)


Jean-Yves Migeon

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