include/sysemu/xen-mapcache.h

   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                        ram_addr_t ram_addr_offset,
  23                        uint8_t lock, bool dma,
  24                        bool is_write);
  25 ram_addr_t xen_ram_addr_from_mapcache(void *ptr);
  26 void xen_invalidate_map_cache_entry(uint8_t *buffer);
  27 void xen_invalidate_map_cache(void);
  28 uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr,
  29                                  hwaddr new_phys_addr,
  30                                  hwaddr size);
  31 #else
  32
  33 static inline void xen_map_cache_init(phys_offset_to_gaddr_t f,
  34                                       void *opaque)
  35 {
  36 }
  37
  38 static inline uint8_t *xen_map_cache(MemoryRegion *mr,
  39                                      hwaddr phys_addr,
  40                                      hwaddr size,
  41                                      ram_addr_t ram_addr_offset,
  42                                      uint8_t lock,
  43                                      bool dma,
  44                                      bool is_write)
  45 {
  46     abort();
  47 }
  48
  49 static inline ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
  50 {
  51     abort();
  52 }
  53
  54 static inline void xen_invalidate_map_cache_entry(uint8_t *buffer)
  55 {
  56 }
  57
  58 static inline void xen_invalidate_map_cache(void)
  59 {
  60 }
  61
  62 static inline uint8_t *xen_replace_cache_entry(hwaddr old_phys_addr,
  63                                                hwaddr new_phys_addr,
  64                                                hwaddr size)
  65 {
  66     abort();
  67 }
  68
  69 #endif
  70
  71 #endif /* XEN_MAPCACHE_H */