46 extern int xen_alloc_p2m_entry(unsigned long pfn);
48 extern unsigned long get_phys_to_machine(unsigned long pfn);
49 extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn);
50 extern bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
85 static inline unsigned long __pfn_to_mfn(unsigned long pfn)  in __pfn_to_mfn()  argument
89 	if (pfn < xen_p2m_size)  in __pfn_to_mfn()
90 		mfn = xen_p2m_addr[pfn];  in __pfn_to_mfn()
91 	else if (unlikely(pfn < xen_max_p2m_pfn))  in __pfn_to_mfn()
92 		return get_phys_to_machine(pfn);  in __pfn_to_mfn()
94 		return IDENTITY_FRAME(pfn);  in __pfn_to_mfn()
97 		return get_phys_to_machine(pfn);  in __pfn_to_mfn()
102 static inline unsigned long pfn_to_mfn(unsigned long pfn)  in pfn_to_mfn()  argument
112 		return pfn;  in pfn_to_mfn()
114 	mfn = __pfn_to_mfn(pfn);  in pfn_to_mfn()
122 static inline int phys_to_machine_mapping_valid(unsigned long pfn)  in phys_to_machine_mapping_valid()  argument
127 	return __pfn_to_mfn(pfn) != INVALID_P2M_ENTRY;  in phys_to_machine_mapping_valid()
132 	unsigned long pfn;  in mfn_to_pfn_no_overrides()  local
146 	ret = xen_safe_read_ulong(&machine_to_phys_mapping[mfn], &pfn);  in mfn_to_pfn_no_overrides()
150 	return pfn;  in mfn_to_pfn_no_overrides()
155 	unsigned long pfn;  in mfn_to_pfn()  local
165 	pfn = mfn_to_pfn_no_overrides(mfn);  in mfn_to_pfn()
166 	if (__pfn_to_mfn(pfn) != mfn)  in mfn_to_pfn()
167 		pfn = ~0;  in mfn_to_pfn()
173 	if (pfn == ~0 && __pfn_to_mfn(mfn) == IDENTITY_FRAME(mfn))  in mfn_to_pfn()
174 		pfn = mfn;  in mfn_to_pfn()
176 	return pfn;  in mfn_to_pfn()
192 static inline unsigned long pfn_to_gfn(unsigned long pfn)  in pfn_to_gfn()  argument
195 		return pfn;  in pfn_to_gfn()
197 		return pfn_to_mfn(pfn);  in pfn_to_gfn()
209 #define pfn_to_bfn(pfn)		pfn_to_gfn(pfn)  argument
234 	unsigned long pfn;  in bfn_to_local_pfn()  local
239 	pfn = mfn_to_pfn(mfn);  in bfn_to_local_pfn()
240 	if (__pfn_to_mfn(pfn) != mfn)  in bfn_to_local_pfn()
242 	return pfn;  in bfn_to_local_pfn()