1 /* 2 * Copyright (C) 2011 Citrix Ltd. 3 * 4 * This work is licensed under the terms of the GNU GPL, version 2. See 5 * the COPYING file in the top-level directory. 6 * 7 */ 8 9 #ifndef XEN_MAPCACHE_H 10 #define XEN_MAPCACHE_H 11 12 #include "exec/cpu-common.h" 13 #include "sysemu/xen.h" 14 15 typedef hwaddr (*phys_offset_to_gaddr_t)(hwaddr phys_offset, 16 ram_addr_t size); 17 #ifdef CONFIG_XEN_IS_POSSIBLE 18 19 void xen_map_cache_init(phys_offset_to_gaddr_t f, 20 void *opaque); 21 uint8_t *xen_map_cache(MemoryRegion *mr, hwaddr phys_addr, hwaddr size, 22 uint8_t lock, bool dma, 23 bool is_write); 24 ram_addr_t xen_ram_addr_from_mapcache(void *ptr); 25 void xen_invalidate_map_cache_entry(uint8_t *buffer); 26 void xen_invalidate_map_cache(void); 27 uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr, 28 hwaddr new_phys_addr, 29 hwaddr size); 30 #else 31 32 static inline void xen_map_cache_init(phys_offset_to_gaddr_t f, 33 void *opaque) 34 { 35 } 36 37 static inline uint8_t *xen_map_cache(MemoryRegion *mr, 38 hwaddr phys_addr, 39 hwaddr size, 40 uint8_t lock, 41 bool dma, 42 bool is_write) 43 { 44 abort(); 45 } 46 47 static inline ram_addr_t xen_ram_addr_from_mapcache(void *ptr) 48 { 49 abort(); 50 } 51 52 static inline void xen_invalidate_map_cache_entry(uint8_t *buffer) 53 { 54 } 55 56 static inline void xen_invalidate_map_cache(void) 57 { 58 } 59 60 static inline uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr, 61 hwaddr new_phys_addr, 62 hwaddr size) 63 { 64 abort(); 65 } 66 67 #endif 68 69 #endif /* XEN_MAPCACHE_H */ 70