Hi! I''m currently trying to port one small real-time OS to Xen and have couple of questions which I didn''t find in the documentation. 1) What are the status of event channels mask at the start of the day? My experiments showed that all the event channels are unmasked - is this right? In the sources of Mini-OS, I have found a comment saying that event channels are masked at the start. But this seems to be obsolete, or do I make something wrong? 2) What is the meaning of shared_info.vcpu_info[0].evtchn_upcall_mask? I thought that it masks all the event channels on the VCPU #0, but this seems wrong, i.e. when I set this to 0xff, the hypervisor callback is still being called. I have to set the shared_info.evtchn_mask to all ones in order to mask all the event channels. Is this behavour correct? 3) How to determine current VCPU number? 4) When I map the shared_info MFN into my OS''s space via update_va_mapping hypercall and then take the dump of the domain with `xm dump-core -C ...`, the page where the shared_info supposed to be mapped to is filled with all zeroes. Is this normal, of that means that mapping was unsuccessful. -- Thanks in advance, Max _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel