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Sadly things didn't work quite as expected. In the course of investigating these issues I actually spotted one piece of PV Dom0 breakage as well, a fix for which is also included here. There are two immediate remaining issues (also mentioned in affected patches): 1) It is not clear to me how PCI device reporting is to work. PV Dom0 reports devices as they're discovered, including ones the hypervisor may not have been able to discover itself (ones on segments other than 0 or hotplugged ones). The respective hypercall, however, is inaccessible to PVH Dom0. Depending on the answer to this, either the hypervisor will need changing (to permit the call) or patch 2 here will need further refinement. 2) Dom0, unlike in the PV case, cannot access the screen (to use as a console) when in a non-default mode (i.e. not 80x25 text), as the necessary information (in particular about VESA-bases LFB modes) is not communicated. On the hypervisor side this looks like deliberate behavior, but it is unclear to me what the intentions were towards an alternative model. (X may be able to access the screen depending on whether it has a suitable driver besides the presently unusable /dev/fb based one.) 1: xen/x86: prevent PVH type from getting clobbered 2: xen/x86: allow PVH Dom0 without XEN_PV=y 3: xen/x86: make "earlyprintk=xen" work better for PVH Dom0 4: xen/x86: allow "earlyprintk=xen" to work for PV Dom0 5: xen/x86: make "earlyprintk=xen" work for HVM/PVH DomU 6: xen/x86: generalize preferred console model from PV to PVH Dom0 7: xen/x86: hook up xen_banner() also for PVH 8: x86/PVH: adjust function/data placement 9: xen/x86: adjust data placement Jan