XPADDR 248 arch/x86/include/asm/xen/page.h return XPADDR(PFN_PHYS(mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset); XPADDR 306 arch/x86/include/asm/xen/page.h #define virt_to_machine(v) (phys_to_machine(XPADDR(__pa(v))))