virt_to_pfn       191 arch/x86/include/asm/xen/page.h #define virt_to_mfn(v)		(pfn_to_mfn(virt_to_pfn(v)))
virt_to_pfn        86 include/asm-generic/page.h #define virt_to_page(addr)	pfn_to_page(virt_to_pfn(addr))