* stable/pvh.v8:
x86/xen: remove depends on CONFIG_EXPERIMENTAL
xen/pvh: Use ballooning to allocate grant table pages [v2]
xen/pvh: remove code to map iomem from guest
xen/pvh: specify xen features strings cleanly for PVH
xen: implement updated XENMEM_add_to_physmap_range ABI
x86/xen: Use __pa_symbol instead of __pa on C visible symbols
xen/privcmd: fix condition in privcmd_close()
xen/x86: remove duplicated include from enlighten.c
xen: x86 pvh: use XENMEM_add_to_physmap_range for foreign gmfn mappings
xen/pvh: balloon and grant changes.
xen/pvh: bootup and setup (E820) related changes.
xen/pvh: Implement MMU changes for PVH.
xen/pvh: Extend vcpu_guest_context, p2m, event, and XenBus.
xen/pvh: Support ParaVirtualized Hardware extensions.