19f532d00SPekka Enberg #ifndef KVM__DISK_IMAGE_H 29f532d00SPekka Enberg #define KVM__DISK_IMAGE_H 39f532d00SPekka Enberg 49f532d00SPekka Enberg #include <stdint.h> 59f532d00SPekka Enberg 62924f993SAsias He #define SECTOR_SHIFT 9 72924f993SAsias He #define SECTOR_SIZE (1UL << SECTOR_SHIFT) 82924f993SAsias He 9*499f3bedSPekka Enberg struct disk_image; 10*499f3bedSPekka Enberg 11*499f3bedSPekka Enberg struct disk_image_operations { 12*499f3bedSPekka Enberg int (*read_sector)(struct disk_image *self, uint64_t sector, void *dst, uint32_t dst_len); 13*499f3bedSPekka Enberg int (*write_sector)(struct disk_image *self, uint64_t sector, void *src, uint32_t src_len); 14*499f3bedSPekka Enberg void (*close)(struct disk_image *self); 15*499f3bedSPekka Enberg }; 16*499f3bedSPekka Enberg 179f532d00SPekka Enberg struct disk_image { 189f532d00SPekka Enberg int fd; 199f532d00SPekka Enberg uint64_t size; 20*499f3bedSPekka Enberg struct disk_image_operations *ops; 21*499f3bedSPekka Enberg void *priv; 229f532d00SPekka Enberg }; 239f532d00SPekka Enberg 249f532d00SPekka Enberg struct disk_image *disk_image__open(const char *filename); 25*499f3bedSPekka Enberg struct disk_image *disk_image__new(int fd, uint64_t size, struct disk_image_operations *ops); 269f532d00SPekka Enberg void disk_image__close(struct disk_image *self); 27*499f3bedSPekka Enberg 28*499f3bedSPekka Enberg static inline int disk_image__read_sector(struct disk_image *self, uint64_t sector, void *dst, uint32_t dst_len) 29*499f3bedSPekka Enberg { 30*499f3bedSPekka Enberg return self->ops->read_sector(self, sector, dst, dst_len); 31*499f3bedSPekka Enberg } 32*499f3bedSPekka Enberg 33*499f3bedSPekka Enberg static inline int disk_image__write_sector(struct disk_image *self, uint64_t sector, void *src, uint32_t src_len) 34*499f3bedSPekka Enberg { 35*499f3bedSPekka Enberg return self->ops->write_sector(self, sector, src, src_len); 36*499f3bedSPekka Enberg } 379f532d00SPekka Enberg 389f532d00SPekka Enberg #endif /* KVM__DISK_IMAGE_H */ 39