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(hwaddr phys_addr, hwaddr size, 22 uint8_t lock, bool dma); 23 ram_addr_t xen_ram_addr_from_mapcache(void *ptr); 24 void xen_invalidate_map_cache_entry(uint8_t *buffer); 25 void xen_invalidate_map_cache(void); 26 uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr, 27 hwaddr new_phys_addr, 28 hwaddr size); 29 #else 30 31 static inline void xen_map_cache_init(phys_offset_to_gaddr_t f, 32 void *opaque) 33 { 34 } 35 36 static inline uint8_t *xen_map_cache(hwaddr phys_addr, 37 hwaddr size, 38 uint8_t lock, 39 bool dma) 40 { 41 abort(); 42 } 43 44 static inline ram_addr_t xen_ram_addr_from_mapcache(void *ptr) 45 { 46 abort(); 47 } 48 49 static inline void xen_invalidate_map_cache_entry(uint8_t *buffer) 50 { 51 } 52 53 static inline void xen_invalidate_map_cache(void) 54 { 55 } 56 57 static inline uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr, 58 hwaddr new_phys_addr, 59 hwaddr size) 60 { 61 abort(); 62 } 63 64 #endif 65 66 #endif /* XEN_MAPCACHE_H */ 67