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I am working on a security tool that monitors various components (IDT, SSDT, etc) of a domU using VM introspection. Currently, we''re using a polling method to monitor these in-core structions. We would like to be able to use a blocking method instead. I.e. specify "interesting" memory ranges and then wait until they are modified. How can I get the hypervisor to alert a

...use uint32_t for virqs - warn when dropping grant v2-only flags when switching versions - IOCTL_XENBUS_BACKEND_SETUP name changed so userspace can implement compat - ioctl now returns -EEXIST if xenstored has already been connected - various cosmetic cleanups, shuffling Changes from v1: - set_virq_handler implemented in libxc - added custom domain builder for xenstored - xenstore/console domain IDs now pulled from xenstore - migration support when using split xenstored (untested, should work) - slightly less intrusive NO_SOCKETS xenstored patch (still has many ifdefs to avoid pulling i...