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
107 		return pfn;  in pfn_to_mfn()
109 	mfn = __pfn_to_mfn(pfn);  in pfn_to_mfn()
117 static inline int phys_to_machine_mapping_valid(unsigned long pfn)  in phys_to_machine_mapping_valid()  argument
122 	return __pfn_to_mfn(pfn) != INVALID_P2M_ENTRY;  in phys_to_machine_mapping_valid()
127 	unsigned long pfn;  in mfn_to_pfn_no_overrides()  local
141 	ret = xen_safe_read_ulong(&machine_to_phys_mapping[mfn], &pfn);  in mfn_to_pfn_no_overrides()
145 	return pfn;  in mfn_to_pfn_no_overrides()
150 	unsigned long pfn;  in mfn_to_pfn()  local
155 	pfn = mfn_to_pfn_no_overrides(mfn);  in mfn_to_pfn()
156 	if (__pfn_to_mfn(pfn) != mfn)  in mfn_to_pfn()
157 		pfn = ~0;  in mfn_to_pfn()
163 	if (pfn == ~0 && __pfn_to_mfn(mfn) == IDENTITY_FRAME(mfn))  in mfn_to_pfn()
164 		pfn = mfn;  in mfn_to_pfn()
166 	return pfn;  in mfn_to_pfn()
203 	unsigned long pfn;  in mfn_to_local_pfn()  local
208 	pfn = mfn_to_pfn(mfn);  in mfn_to_local_pfn()
209 	if (__pfn_to_mfn(pfn) != mfn)  in mfn_to_local_pfn()
211 	return pfn;  in mfn_to_local_pfn()
266 					 unsigned long pfn,  in xen_arch_need_swiotlb()  argument