util/block-helpers.h

   1 #ifndef BLOCK_HELPERS_H
   2 #define BLOCK_HELPERS_H
   3
   4 #include "qemu/units.h"
   5
   6 /* lower limit is sector size */
   7 #define MIN_BLOCK_SIZE          INT64_C(512)
   8 #define MIN_BLOCK_SIZE_STR      "512 B"
   9 /*
  10  * upper limit is arbitrary, 2 MiB looks sufficient for all sensible uses, and
  11  * matches qcow2 cluster size limit
  12  */
  13 #define MAX_BLOCK_SIZE          (2 * MiB)
  14 #define MAX_BLOCK_SIZE_STR      "2 MiB"
  15
  16 void check_block_size(const char *id, const char *name, int64_t value,
  17                       Error **errp);
  18
  19 #endif /* BLOCK_HELPERS_H */