On Fri, Nov 10, 2023 at 12:34:32PM +0100, Juergen Gross wrote: > Get the own domid via creation of a temporary event channel. There is > no "official" way to read the own domid in PV guests, so use the event > channel interface to get it: > > - allocate an unbound event channel specifying DOMID_SELF for the > other end > > - read the event channel status which will contain the own domid in > unbound.dom > > - close the event channel
Should we look into introducing a way to expose the domid, so that in the future we might not need to resort to this workarounds to get the domid? Maybe in the PV-specific cpuid leaf? It's a shame we didn't put it in a non-HVM specific leaf when it was made available to HVM for pvshim reasons. Thanks, Roger.
